Science Quiz For Grade 6 Students
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Get ready for this amazing "Science Quiz For Grade 6 Students!" Students or experts who have a vast knowledge of the science subject should definitely try out this quiz. It will gauge and test how much knowledge you have on the subject. So, without further ado, let's get started. All the best to you, and try to score as much as you can while you take this quiz!
Grade 6 Science Questions and Answers
- 1.
What is the darkest part of the shadow?
- A.
Umbra
- B.
Penumbra
- C.
Hyperumbra
- D.
None of these
Correct Answer
A. UmbraExplanation
The darkest part of a shadow is called the umbra. When an object blocks the light source completely, it creates a region behind it where no direct light can reach, resulting in a dark shadow. This area is known as the umbra. The penumbra, on the other hand, refers to the partially shaded region surrounding the umbra where some light is still able to reach. Hyperumbra is not a recognized term in the context of shadows.Rate this question:
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- 2.
What is the primary source of energy for Earth?
- A.
The Moon
- B.
Electricity
- C.
The Sun
- D.
Geothermal heat
Correct Answer
C. The SunExplanation
The Sun is the primary source of energy for Earth, providing the necessary light and warmth for life to exist. Solar energy drives Earth's climate and weather and supports nearly all life through photosynthesis, where plants convert solar energy into chemical energy. While other sources like geothermal heat and the Moon affect the Earth, they do so to a much lesser extent compared to the Sun.Rate this question:
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- 3.
Which gas is most abundant in Earth's atmosphere?
- A.
Oxygen
- B.
Carbon Dioxide
- C.
Nitrogen
- D.
Hydrogen
Correct Answer
C. NitrogenExplanation
Nitrogen is the most abundant gas in Earth's atmosphere, making up about 78% of the air we breathe. Oxygen, which is essential for life, makes up about 21%, while other gases such as carbon dioxide and argon make up the rest. Nitrogen is crucial for many biological processes and helps form proteins in living organisms, but it is inert and does not participate directly in Earth's weather or climate.Rate this question:
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- 4.
What process is primarily responsible for shaping the surface of the Moon?
- A.
Erosion
- B.
Volcanic activity
- C.
Meteor impacts
- D.
Plate tectonics
Correct Answer
C. Meteor impactsExplanation
Meteor impacts are primarily responsible for shaping the surface of the Moon. The Moon's surface is covered with craters formed by the collision of meteoroids, asteroids, and comets. Unlike Earth, the Moon lacks significant atmospheric erosion, volcanic activity, and plate tectonics, making meteor impacts the dominant process in shaping its surface.Rate this question:
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- 5.
What is the role of chlorophyll in plants?
- A.
To absorb water
- B.
To capture sunlight
- C.
To produce carbon dioxide
- D.
To attract pollinators
Correct Answer
B. To capture sunlightExplanation
Chlorophyll is a green pigment found in the chloroplasts of plant cells and is crucial for photosynthesis, the process by which plants convert light energy into chemical energy. Chlorophyll absorbs light, most efficiently in the blue and red wavelengths, and uses this energy to convert carbon dioxide and water into glucose and oxygen. This is essential for plant growth and providing energy for life on Earth.Rate this question:
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- 6.
Which element is most essential for the construction of electronic circuits?
- A.
Iron
- B.
Silicon
- C.
Calcium
- D.
Magnesium
Correct Answer
B. SiliconExplanation
Silicon is a fundamental element used in the construction of electronic circuits. It is used as a semiconductor material in microchips and transistors, the building blocks of modern electronics. Silicon's properties allow it to conduct electricity under certain conditions, making it ideal for controlling electronic signals. This has made it the backbone of the digital and technology revolution, from computers to smartphones.Rate this question:
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- 7.
What is Mass?
- A.
An object that shows how much kilogram is in it.
- B.
The amount of matter in a particle or object.
- C.
Both A & B
- D.
None
Correct Answer
B. The amount of matter in a particle or object.Explanation
Mass is a fundamental property of matter that measures the amount of matter in an object or particle. It is commonly measured in kilograms and is different from weight, which is the force exerted on an object due to gravity. Mass remains constant regardless of the location, while weight can vary depending on the strength of gravity.Rate this question:
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- 8.
What is length?
- A.
The distance between 100 points
- B.
The distance between 4 points
- C.
The distance between 1000 points
- D.
The distance between 2 points
Correct Answer
D. The distance between 2 pointsExplanation
Length refers to the distance between two points. In this context, the question is asking for the length between two points. The other options, such as the distance between 100 points, 4 points, or 1000 points, are not relevant to the question as they are not asking for the length between two specific points.Rate this question:
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- 9.
What is the function of blood cells?
- A.
Carry messages all over the body.
- B.
To control the size of the openings.
- C.
To carry oxygen around the body.
- D.
None of these
Correct Answer
C. To carry oxygen around the body.Explanation
The function of blood cells is to carry oxygen around the body. This is accomplished by the red blood cells, which contain a protein called hemoglobin that binds to oxygen in the lungs and transports it to the body's tissues. Oxygen is essential for cellular respiration, the process by which cells produce energy. Without the oxygen-carrying function of blood cells, the body's tissues would not receive the necessary oxygen for proper functioning.Rate this question:
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- 10.
Push and pull are the types of forces that cause things to move.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Push and pull are indeed forces that can start the movement of objects. When an object is pushed, a force is applied in one direction, causing the object to move away from the force. On the other hand, when an object is pulled, a force is applied in the opposite direction, causing the object to move towards the force.Rate this question:
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- 11.
Sound travels faster in water than in air.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The speed of sound is affected by the density of the medium through which it travels. Water is denser than air, meaning the molecules are packed more closely together. This allows sound waves to transfer energy more efficiently between molecules, resulting in a faster speed of sound in water.Rate this question:
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- 12.
I have dry, scaly skin, breathe with lungs, and lay shelled eggs. My relatives are dinosaurs, lizards, snakes, etc. What type of animal am I?
- A.
Amphibians
- B.
Primates
- C.
Reptiles
- D.
Mammals
Correct Answer
C. ReptilesExplanation
Reptiles, a diverse group of vertebrates, are characterized by several distinctive features that set them apart from other animal classes. They possess dry, scaly skin, which helps prevent water loss in arid environments, making them well-suited to a variety of terrestrial habitats. Unlike amphibians, reptiles breathe exclusively with lungs, even from the moment of birth, which is a more efficient respiratory system allowing for greater stamina and activity levels.Rate this question:
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- 13.
Mosses are small plants that produce spores and need a damp place to live.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Mosses are small plants that reproduce by producing spores, which are tiny reproductive cells. They require a damp environment to survive because they lack vascular tissues to transport water and nutrients. The presence of water is essential for mosses to absorb moisture and carry out important processes like photosynthesis.Rate this question:
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- 14.
Every mammal can swim underwater.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The statement "Every mammal can swim underwater" is incorrect. While some mammals, such as dolphins and seals, are adapted to swim underwater, not all mammals have the ability to do so. Some mammals, like elephants and giraffes, are not built for swimming and would struggle to do so.Rate this question:
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- 15.
What is Science?
- A.
Study of living things
- B.
Study of nature
- C.
Study of scientific law
- D.
All of the above
Correct Answer
D. All of the aboveExplanation
Science is the study of living things, nature, and scientific laws. It encompasses a wide range of disciplines that aim to understand and explain the world around us. The study of living things, also known as biology, explores the characteristics, behavior, and interactions of organisms. The study of nature, or natural sciences, includes disciplines such as physics, chemistry, and geology, which investigate the physical and chemical properties of the natural world. Lastly, the study of scientific laws refer to laws and principles that describe and predict natural phenomenaRate this question:
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Oct 30, 2024Quiz Edited by
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Feb 26, 2010Quiz Created by
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