Science Test 3rd Grade - 3rd Quarter
There are two types of change in matter: physical change and chemical change. As the names suggest, physical changes affect physical properties, and chemical changes affect chemical properties. Test out your understanding of the processes involved in these changes by taking up the test below. Keep revising on the ones you don’t get!
Questions and Answers
- 1.
Define temperature:
- A.
Material through which heat moves easily through
- B.
A form of energy that moves between objects
- C.
The measure of how hot or cold something is
- D.
Travels through solids, liquids and gases
Correct Answer
C. The measure of how hot or cold something isExplanation
The correct answer is "The measure of how hot or cold something is." Temperature is a quantitative measurement of the degree of hotness or coldness of an object or substance. It is a fundamental property of matter and is typically measured using a thermometer.Rate this question:
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- 2.
What is an insulator?
- A.
A form of energy that moves between objects
- B.
Material through which heat moves easily through
- C.
The measure of how hot or cold something is
- D.
Material that heat does not move through easily
Correct Answer
D. Material that heat does not move through easilyExplanation
An insulator is a material that does not allow heat to easily pass through it. Unlike conductors, which allow heat to flow through them easily, insulators have high resistance to the transfer of heat. This property makes insulators useful for preventing the loss or gain of heat in various applications, such as in building insulation or electrical wiring.Rate this question:
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- 3.
What is a conductor?
- A.
Material through which heat moves easily through
- B.
Material that heat does not move through easily
- C.
Material that travels through solids, liquids and gases
- D.
Material that melts easily
Correct Answer
A. Material through which heat moves easily throughExplanation
A conductor is a material through which heat moves easily. This means that heat can flow through a conductor with minimal resistance. Conductors are typically materials that have high thermal conductivity, allowing them to transfer heat efficiently. Examples of conductors include metals like copper and aluminum.Rate this question:
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- 4.
Does a solid have a shape of its own?
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
A solid does have a shape of its own because it has a fixed volume and maintains its shape even when subjected to external forces. Unlike liquids and gases, solids have a definite shape due to the strong intermolecular forces that hold their particles closely together. This allows them to maintain their structure and resist deformation. Therefore, the statement "True" is correct in stating that a solid has a shape of its own.Rate this question:
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- 5.
Does a solid have a liquid of its own?
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
A solid does not have a liquid of its own. Solids have a fixed shape and volume, and their particles are tightly packed together. Liquids, on the other hand, have a fixed volume but take the shape of their container. So, solids do not possess a liquid phase that is unique to them.Rate this question:
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- 6.
Does a gas have a shape of its own?
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Gas does not have a shape of its own. Unlike solids and liquids, gases do not have a definite shape and can expand to fill the entire space available to them. The particles in a gas move freely and are not held together in a fixed arrangement, allowing them to spread out and take the shape of their container. Therefore, the statement that a gas has a shape of its own is false.Rate this question:
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- 7.
Does a solid have a volume of its own?
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
A solid does have a volume of its own. Volume is a physical property that measures the amount of space occupied by an object. Solids, like any other matter, occupy space and therefore have a definite volume.Rate this question:
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- 8.
Does a liquid have a volume of its own?
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Liquids have their own volume because they take up space and have a definite shape that conforms to the container they are in. Unlike gases, which can expand or contract to fill any container, liquids have a fixed volume and cannot be compressed easily. Therefore, it is true that a liquid has a volume of its own.Rate this question:
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- 9.
Does a gas have a volume of its own?
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
A gas does not have a volume of its own. Unlike solids and liquids, gases do not have a fixed shape or volume. They can expand and contract to fill the space available to them. The volume of a gas is determined by the container it is in.Rate this question:
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- 10.
How do particles move through a solid?
- A.
Slowly
- B.
They Don't
- C.
Quickly
Correct Answer
B. They Don'tExplanation
Particles do not move through a solid because the particles in a solid are tightly packed together and held in fixed positions by strong forces of attraction. This lack of mobility prevents the particles from freely moving and flowing through the solid. Therefore, the correct answer is "They Don't".Rate this question:
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- 11.
How do particles move through a liquid?
- A.
Slowly
- B.
They Don't
- C.
Quickly
Correct Answer
A. SlowlyExplanation
Particles move through a liquid slowly because of the high viscosity of the liquid. Viscosity refers to the resistance of a fluid to flow, and liquids with high viscosity have strong internal friction that hinders the movement of particles. As a result, particles in a liquid experience a slower and more gradual movement compared to particles in a gas or a less viscous liquid.Rate this question:
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- 12.
How do particles move through a gas?
- A.
Slowly
- B.
They Don't
- C.
Quickly
Correct Answer
C. QuicklyExplanation
Particles move quickly through a gas because they have high kinetic energy. Gas particles are in constant motion and collide with each other, transferring energy and momentum. These collisions cause the particles to move rapidly in random directions. The speed of gas particles is influenced by factors such as temperature, pressure, and the mass of the particles. Therefore, the correct answer is "Quickly" as it accurately describes the movement of particles in a gas.Rate this question:
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- 13.
Rain is an example of:
- A.
Condensation
- B.
Evaporation
- C.
Precipitation
Correct Answer
C. PrecipitationExplanation
Rain is an example of precipitation because it is a form of water that falls from the atmosphere to the Earth's surface. Precipitation includes any form of water, such as rain, snow, sleet, or hail, that falls from the clouds due to the condensation of water vapor. In the case of rain, the water droplets in the clouds combine and become heavy enough to fall to the ground under the force of gravity. Therefore, precipitation is the correct term to describe rain.Rate this question:
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- 14.
Changing from a gas to liquid is:
- A.
Evaporation
- B.
Condensation
- C.
Melting
- D.
Freezing
Correct Answer
B. CondensationExplanation
Condensation is the process in which a substance changes from its gaseous state to its liquid state. This occurs when the gas loses heat energy and the particles slow down, coming closer together and forming liquid droplets. This process commonly happens when warm, moist air comes into contact with a colder surface, such as when water vapor in the air condenses on a cold window pane. Therefore, condensation is the correct answer for the given question.Rate this question:
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- 15.
Changing from a liquid to gas is:
- A.
Evaporation
- B.
Condensation
- C.
Melting
- D.
Freezing
Correct Answer
A. EvaporationExplanation
Evaporation is the process in which a liquid changes into a gas at a temperature below its boiling point. It occurs when the particles in the liquid gain enough energy to escape from the surface and become vapor. This process does not require the liquid to reach its boiling point, unlike boiling which occurs at the boiling point. Therefore, evaporation is the correct answer as it accurately describes the transformation of a liquid into a gas.Rate this question:
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- 16.
Changing from a liquid to solid is:
- A.
Evaporation
- B.
Condensation
- C.
Melting
- D.
Freezing
Correct Answer
D. FreezingExplanation
Freezing is the process in which a substance changes from a liquid state to a solid state due to the removal of heat energy. During freezing, the particles in the substance slow down and come closer together, forming a rigid structure. This is different from evaporation, which is the change from a liquid to a gas, and condensation, which is the change from a gas to a liquid. Melting, on the other hand, is the process of changing from a solid to a liquid state. Therefore, freezing is the correct answer as it specifically refers to the change from a liquid to a solid.Rate this question:
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- 17.
Changing from a solid to liquid is:
- A.
Evaporation
- B.
Condensation
- C.
Melting
- D.
Freezing
Correct Answer
C. MeltingExplanation
Melting refers to the process in which a solid substance changes into a liquid state due to an increase in temperature. This occurs when the substance's particles gain enough energy to overcome the forces holding them in a fixed arrangement. As a result, the solid's structure breaks down, and it transforms into a liquid without changing its chemical composition. This explanation aligns with the given correct answer, "Melting."Rate this question:
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- 18.
A way heat is produced
- A.
Precipitation
- B.
Burning
- C.
Condensation
Correct Answer
B. BurningExplanation
Burning is a process that produces heat. When a substance undergoes combustion, it reacts with oxygen in the air and releases energy in the form of heat and light. This is a common way of producing heat, such as in fireplaces, stoves, or engines. During the burning process, the bonds between atoms in the fuel are broken, and new bonds are formed with oxygen atoms, resulting in the release of energy in the form of heat. Therefore, burning is a valid explanation for how heat is produced.Rate this question:
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- 19.
A way heat is produced
- A.
Rubbing
- B.
Evaporation
- C.
Freezing
Correct Answer
A. RubbingExplanation
Rubbing is a way heat is produced because when two objects are rubbed against each other, friction is created. Friction generates heat energy due to the resistance between the two surfaces. The kinetic energy of the rubbing motion is converted into thermal energy, resulting in the production of heat. Therefore, rubbing is a process that can generate heat.Rate this question:
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- 20.
The amount of space an object takes up:
- A.
Mass
- B.
Volume
- C.
Meter
- D.
Temperature
Correct Answer
B. VolumeExplanation
Volume is the correct answer because it refers to the amount of space that an object occupies. It is a measurement of the three-dimensional space that an object occupies, and it is typically measured in cubic units such as cubic meters or cubic centimeters. Mass, meter, and temperature do not directly relate to the amount of space an object takes up. Mass refers to the amount of matter in an object, meter is a unit of length, and temperature is a measure of the average kinetic energy of particles in a substance.Rate this question:
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- 21.
The amount of matter an object takes contains:
- A.
Mass
- B.
Volume
- C.
Meter
- D.
Temperature
Correct Answer
A. MassExplanation
Mass is the correct answer because it refers to the quantity of matter present in an object. It is a measure of the inertia of an object and is independent of its location. Mass can be measured using a balance or scale and is typically expressed in units such as kilograms or grams. Volume, meter, and temperature are not directly related to the amount of matter an object contains.Rate this question:
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- 22.
A metric unit of measurement:
- A.
Meter
- B.
Inch
- C.
Yard
Correct Answer
A. MeterExplanation
Meter is a metric unit of measurement commonly used to measure length or distance. It is the base unit of length in the International System of Units (SI). The meter is defined as the distance traveled by light in a vacuum in 1/299,792,458 of a second. It is widely used in scientific, engineering, and everyday applications around the world. Inch and yard, on the other hand, are imperial units of measurement commonly used in the United States and a few other countries.Rate this question:
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- 23.
States of matter:
- A.
Solid
- B.
Liquid
- C.
Gas
- D.
All of the above
Correct Answer
D. All of the aboveExplanation
The given answer, "All of the above," is correct because it includes all the states of matter mentioned in the question: solid, liquid, and gas. These are the three primary states of matter, and the answer encompasses all of them.Rate this question:
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- 24.
What changes on moon due to gravity
- A.
Mass
- B.
Weight
- C.
Temperature
Correct Answer
B. WeightExplanation
The weight of an object changes on the moon due to gravity. The moon has a weaker gravitational force compared to Earth, so objects weigh less on the moon. This is because weight is the force exerted on an object due to gravity, and the strength of gravity determines the weight of an object. Mass, on the other hand, remains the same regardless of the location, as it is a measure of the amount of matter in an object. Temperature is not directly affected by gravity.Rate this question:
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- 25.
Energy that makes particles in material move
- A.
Nuclear Energy
- B.
Thermal Energy
- C.
Eolian Energy
Correct Answer
B. Thermal EnergyExplanation
Thermal energy refers to the energy that is associated with the motion of particles within a material. It is the energy that causes particles to move and vibrate, resulting in an increase in temperature. This form of energy is generated by the heat transfer from one object to another, and it plays a crucial role in various processes such as heating, cooking, and power generation. Therefore, thermal energy is the correct answer as it accurately describes the energy that makes particles in a material move.Rate this question:
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- 26.
Contraction describes the phenomenon of objects getting bigger
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The statement is incorrect. Contraction actually describes the phenomenon of objects getting smaller or decreasing in size, rather than getting bigger.Rate this question:
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- 27.
Contraction describes the phenomenon of objects getting smaller
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Contraction refers to the process by which objects become smaller. This can occur due to various factors such as cooling, compression, or contraction of muscles. Therefore, the statement "Contraction describes the phenomenon of objects getting smaller" is true.Rate this question:
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- 28.
Expansion describes the phenomenon of objects getting bigger
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Expansion refers to the process or phenomenon of objects increasing in size or becoming larger. This can occur due to various factors such as heat, pressure, or the addition of more material. When objects expand, their dimensions, volume, or overall size increase. Therefore, the statement "Expansion describes the phenomenon of objects getting bigger" is true as it accurately describes the concept of expansion.Rate this question:
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- 29.
Expansion describes the phenomenon of objects getting smaller
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Expansion actually describes the phenomenon of objects getting larger or increasing in size. When objects expand, they generally take up more space or have increased dimensions. Therefore, the given statement is incorrect.Rate this question:
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- 30.
Earth's main source of heat is:
- A.
The Moon
- B.
The Stars
- C.
The Sun
- D.
The Earth's Core
Correct Answer
C. The SunExplanation
The Sun is Earth's main source of heat because it emits a vast amount of energy, including heat and light, through nuclear fusion reactions in its core. This energy is transmitted to Earth in the form of sunlight. The Sun's heat is essential for maintaining Earth's temperature, driving weather patterns, and supporting life on our planet. The Moon and stars do not emit enough heat to significantly impact Earth's temperature, while the Earth's core generates heat but is not the primary source of heat for the planet.Rate this question:
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- 31.
A thermometer is:
- A.
The measure of heat
- B.
A tool used to measure temperature
- C.
A conductor
- D.
A insulator
Correct Answer
B. A tool used to measure temperatureExplanation
A thermometer is a tool used to measure temperature. It consists of a narrow glass tube with a bulb at one end that contains a liquid, typically mercury or alcohol. As the temperature changes, the liquid expands or contracts, causing it to rise or fall within the tube. The scale marked on the thermometer allows for accurate measurement of the temperature. Thermometers are commonly used in various fields such as weather forecasting, medical applications, and scientific research to monitor and record temperature changes.Rate this question:
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- 32.
Energy which moves between objects:
- A.
Heat
- B.
Insulator
- C.
Conductor
Correct Answer
A. HeatExplanation
Heat is the energy that moves between objects. When there is a temperature difference between two objects, heat flows from the object with higher temperature to the object with lower temperature. It is a form of energy transfer that occurs due to the random motion of atoms and molecules. Heat can be transferred through conduction, convection, or radiation. Conduction is the transfer of heat through direct contact between objects, while convection is the transfer of heat through the movement of fluids. Radiation is the transfer of heat through electromagnetic waves. Therefore, heat is the correct answer as it represents the energy transfer between objects.Rate this question:
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- 33.
I am the gaseous state of water. What am I?
- A.
Ice cube
- B.
Warm water
- C.
Water vapor
Correct Answer
C. Water vaporExplanation
Water vapor is the correct answer because it is the gaseous state of water. When water is heated, it turns into water vapor, which is an invisible gas. This is different from ice cube, which is the solid state of water, and warm water, which is the liquid state of water.Rate this question:
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- 34.
I am the process in which liquid slowly changes into a a gas. What am I?
- A.
Evaporation
- B.
Freezing Freezing
- C.
Melting
- D.
Condensation
Correct Answer
A. EvaporationExplanation
Evaporation is the process in which a liquid slowly changes into a gas. It occurs when the molecules of a liquid gain enough energy to break free from the surface and escape into the air. This process is different from freezing, melting, and condensation, which involve the transformation of a substance from one state to another, but not specifically from liquid to gas.Rate this question:
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- 35.
Solids, liquids, and gases have to gain or lose some in order to change state. What am I?
- A.
Money
- B.
Energy Energy
- C.
Mass
- D.
Speed
Correct Answer
B. Energy EnergyExplanation
Solids, liquids, and gases undergo a change of state by gaining or losing energy. This energy can be in the form of heat, which causes the particles to move faster and break their bonds, resulting in a change of state. Money, mass, and speed do not have the ability to change state in the same way as solids, liquids, and gases. Therefore, the correct answer is energy.Rate this question:
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- 36.
I happen when heat makes liquid particles move faster and spread out. What am I?
- A.
Heat
- B.
Energy
- C.
Melting
- D.
Boiling
Correct Answer
D. BoilingExplanation
Boiling occurs when heat is applied to a liquid, causing the particles in the liquid to move faster and spread out. This increased movement and spreading out of the particles leads to the formation of bubbles and the conversion of the liquid into a gas. Therefore, boiling is the correct answer as it accurately describes the process of liquid particles becoming more energetic and spreading out due to the application of heat.Rate this question:
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- 37.
I happen when solid matter gains energy and turns into a liquid. What am I?
- A.
Evaporating
- B.
Condensing
- C.
Boiling
- D.
Melting
Correct Answer
D. MeltingExplanation
Melting occurs when solid matter gains energy and turns into a liquid. This process involves the breaking of intermolecular forces that hold the solid together, allowing the particles to move more freely and take on the characteristics of a liquid. It is a phase transition that typically occurs when the temperature of the solid reaches its melting point.Rate this question:
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- 38.
I happen when particles of water vapor lose energy and come closer together. What am I?
- A.
Evaporation
- B.
Condensation
- C.
Boiling
- D.
Melting
Correct Answer
B. CondensationExplanation
Condensation occurs when particles of water vapor lose energy and come closer together. This process leads to the formation of liquid water droplets or solid ice crystals from the gaseous state. It typically happens when warm air containing water vapor cools down, causing the water vapor to condense into visible droplets or fog. Condensation is an essential part of the water cycle and is responsible for the formation of clouds, fog, and precipitation.Rate this question:
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- 39.
I am the process that locks particles into position to form a solid. What am I?
- A.
Boiling
- B.
Melting
- C.
Freezing
Correct Answer
C. FreezingExplanation
Freezing is the process that locks particles into position to form a solid. During freezing, the particles of a substance lose energy and slow down, causing them to arrange themselves in a fixed pattern, resulting in the formation of a solid. This process occurs when a substance's temperature decreases below its freezing point.Rate this question:
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- 40.
When something melts, it changes from:
- A.
A solid to gas
- B.
A liquid to gas
- C.
A solid to liquid
- D.
A liquid to solid
Correct Answer
C. A solid to liquidExplanation
When something melts, it undergoes a phase change from a solid state to a liquid state. This occurs when the substance is heated to its melting point, causing the particles within the solid to gain enough energy to break their fixed positions and move more freely. As a result, the solid structure breaks down, and the substance transforms into a liquid while maintaining its chemical composition.Rate this question:
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- 41.
A matter is heated it gains
- A.
Thermal Energy
- B.
Nuclear Energy
- C.
Solar Energy
- D.
Eolian Energy
Correct Answer
A. Thermal EnergyExplanation
When a matter is heated, it gains thermal energy. Thermal energy refers to the energy that is generated by the movement of particles within a substance. As heat is applied to a matter, the particles within it start to vibrate and move faster, resulting in an increase in thermal energy. This energy can then be transferred to other objects or used to perform work. Therefore, the correct answer is Thermal Energy.Rate this question:
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- 42.
Particles in solids are held
- A.
Loose
- B.
Closely Together
- C.
Hostages
Correct Answer
B. Closely TogetherExplanation
The correct answer is "Closely Together" because particles in solids are held tightly or closely together due to strong intermolecular forces. This close arrangement of particles is what gives solids their fixed shape and volume. Unlike particles in liquids or gases, particles in solids have limited freedom of movement and vibrate in fixed positions. This close proximity of particles also allows solids to have a high density and makes them less compressible compared to liquids and gases.Rate this question:
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- 43.
Particles in liquids
- A.
Are not moving
- B.
Are very far from each-other
- C.
Slide past one another
Correct Answer
C. Slide past one anotherExplanation
Particles in liquids are not stationary or fixed in place, but rather they have the ability to move. However, they are also closely packed together, unlike particles in gases. The correct answer states that particles in liquids slide past one another, which accurately describes their movement. This sliding motion allows liquids to flow and take the shape of their container.Rate this question:
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- 44.
When something boils in changes from
- A.
A solid to gas
- B.
A liquid to gas
- C.
A solid to liquid
- D.
A liquid to solid
Correct Answer
B. A liquid to gasExplanation
When something boils, it changes from a liquid to a gas. This process occurs when the substance is heated to its boiling point, causing the particles to gain enough energy to break free from their liquid state and form a gas. This change is accompanied by the release of energy in the form of heat.Rate this question:
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- 45.
Heat causes particles in a liquid to
- A.
Move faster and spread-out
- B.
Move slower and freeze
- C.
Move faster and freeze
- D.
Move slower and spread-out
Correct Answer
A. Move faster and spread-outExplanation
When heat is applied to a liquid, it increases the kinetic energy of its particles. This increase in energy causes the particles to move faster and spread out. As the particles gain more energy, they overcome the attractive forces between them and move further apart, resulting in the liquid expanding and spreading out. Therefore, the correct answer is that heat causes particles in a liquid to move faster and spread out.Rate this question:
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- 46.
Liquids can slowly change into a gas, a process known as
- A.
Condensation
- B.
Evaporation
- C.
Liquidation
- D.
Freezing
Correct Answer
B. EvaporationExplanation
Evaporation is the correct answer because it refers to the process of a liquid slowly changing into a gas. This occurs when the liquid's molecules gain enough energy to break free from the surface and become vapor. Unlike condensation, which is the opposite process of gas turning into a liquid, evaporation does not require a specific temperature or pressure. Liquidation and freezing are unrelated to the transformation of a liquid into a gas.Rate this question:
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- 47.
Water in the form of gas is called
- A.
Spa
- B.
Water Vapor
- C.
Ice cube
- D.
Hot water
Correct Answer
B. Water VaporExplanation
Water in the form of gas is called water vapor. When water is heated, it undergoes a phase change from liquid to gas, forming water vapor. Water vapor is invisible and is found in the atmosphere, contributing to the formation of clouds and precipitation. It can also be produced through processes such as evaporation and boiling. Water vapor is an important component of the Earth's water cycle and plays a crucial role in weather patterns and climate.Rate this question:
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- 48.
The amount of energy is a solid, a liquid or a gas when is cooled increases
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
When a solid, liquid, or gas is cooled, the amount of energy it contains decreases, not increases. Cooling causes the particles in the substance to slow down, resulting in a decrease in kinetic energy. Therefore, the correct answer is False.Rate this question:
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- 49.
The amount of energy is a solid, a liquid or a gas when is cooled decreases
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
When a solid, liquid, or gas is cooled, the amount of energy it possesses decreases. This is because cooling involves the removal of heat energy from the substance, causing its particles to slow down and have less kinetic energy. As a result, the substance transitions to a lower energy state, which is reflected in a decrease in its overall energy. Therefore, the statement "The amount of energy is a solid, a liquid or a gas when cooled decreases" is true.Rate this question:
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- 50.
When a gas cools to the right temperature, it will
- A.
Evaporate
- B.
Condense
- C.
Boil
- D.
Freeze
Correct Answer
B. CondenseExplanation
When a gas cools to the right temperature, its particles lose energy and slow down. As a result, the particles come closer together and the intermolecular forces become stronger. This causes the gas to undergo a phase change and transform into a liquid. This process is known as condensation. Therefore, the correct answer is "Condense".Rate this question:
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