1.
What is the similarity between a mushroom and a bird's nest fern?
Correct Answer
C. They can reproduce by spores
Explanation
The similarity between a mushroom and a bird's nest fern is that they can both reproduce by spores. Spores are tiny reproductive cells that are released into the environment and can develop into new individuals under favorable conditions. Both mushrooms and bird's nest ferns produce spores as part of their reproductive process, allowing them to spread and reproduce. This method of reproduction is different from plants that reproduce through seeds or other means.
2.
The following animals are grouped according to their _______________.
Correct Answer
D. Body Covering
Explanation
The animals are grouped according to their body covering. This means that animals with similar types of body coverings, such as fur, feathers, scales, or skin, are placed together in the same group. This classification is based on the physical characteristics and adaptations of the animals' body coverings, which help them survive in their respective environments.
3.
Which of the animal in the above question (2) is grouped incorrectly?
Correct Answer
C. Penguin
Explanation
The animal grouped incorrectly in the above question is Penguin. Tuna, Lizard, and Human are all animals, but Penguin is a bird.
4.
What is the function of part X in the diagram below?
Correct Answer
D. To transport water and mineral salt for the plant
Explanation
Part X in the diagram is responsible for transporting water and mineral salts for the plant. This suggests that it plays a crucial role in the plant's nutrient uptake and distribution. It is likely a specialized structure such as xylem or vascular tissue that helps in the movement of water and minerals from the roots to the rest of the plant.
5.
What is the possible plant for plant A?
Correct Answer
C. Ixora
Explanation
The possible plant for plant A is Ixora.
6.
Which of the following are not valid reasons for making plastic a suitable material for raincoat?
A. It is light
B. It is fragile
C. It is water proof
D. It can conduct electricity
Correct Answer
C. B and D
Explanation
Plastic being light and waterproof are valid reasons for making it a suitable material for a raincoat. However, the fact that it is fragile and can conduct electricity are not valid reasons. Fragility would make the raincoat easily breakable, while conductivity would pose a safety risk during rainy weather. Therefore, the correct answer is B and D.
7.
Which of the following groups would you place aluminium and polyester resectively?
Correct Answer
D. Natural; Man-Made
Explanation
Aluminium is a metallic element that is extracted from bauxite ore through various industrial processes, making it a man-made material. On the other hand, polyester is a synthetic polymer that is derived from petroleum, a natural resource, and undergoes chemical reactions to form the final product. Therefore, aluminium is man-made, while polyester is man-made.
8.
Which of the following material would you use to make a tuxedo?
Correct Answer
C. Material Z
Explanation
Material Z would be used to make a tuxedo because it is the only option provided that is suitable for making formal attire. Material X and Material Y are not specified as appropriate materials for making a tuxedo, and "None of above" implies that none of the materials listed are suitable. Therefore, Material Z is the most logical choice for making a tuxedo.
9.
What is the reason that the two magnets below are going different directions?
Correct Answer
B. Like poles in magnet repel
Explanation
The reason that the two magnets below are going in different directions is because like poles in magnets repel each other. Since both magnets have the same color, they are likely to have the same polarity. As a result, the like poles of the magnets are facing each other, causing them to repel and move away from each other in opposite directions.
10.
What pole will the needle's eye be after stroking it with the south facing magnet multiple times?
Correct Answer
B. South Pole
Explanation
When a needle is stroked with a south facing magnet multiple times, the needle itself becomes magnetized. The south pole of the magnet attracts the north pole of the needle, causing the needle to align itself in a north-south direction. Therefore, the needle's eye will become the south pole of the magnet after being stroked with the south facing magnet multiple times.
11.
What is the label A, B and C respectively?
Correct Answer
A. A: Leaf blade, B: Leaf veins, C: Leaf stalk
Explanation
This answer is correct because it correctly identifies the label A as the leaf blade, B as the leaf veins, and C as the leaf stalk. The leaf blade is the broad, flat part of the leaf that is responsible for photosynthesis. The leaf veins are the vascular tissue that transports water, nutrients, and sugars throughout the leaf. The leaf stalk, also known as the petiole, is the slender structure that attaches the leaf blade to the stem of the plant.
12.
Which of the following best explains the characteristic of the living thing in the box experiment below?
Correct Answer
C. Plant can respond to changes
Explanation
The characteristic of a living thing in the box experiment is that plants can respond to changes. This means that plants have the ability to detect and react to stimuli in their environment, such as light, gravity, or temperature. They can adjust their growth, movement, or other physiological processes in response to these stimuli. This ability to respond to changes is a key characteristic of living organisms.
13.
What is one of the similarity between the two animals below?
Correct Answer
D. They both have segmented bodies
Explanation
The correct answer is that both animals have segmented bodies. This means that their bodies are divided into distinct sections or segments. This characteristic is common in many types of animals, including insects, worms, and crustaceans. Segmented bodies provide flexibility and allow for efficient movement and adaptation to different environments.
14.
Which of the statement is true about a seed?
Correct Answer
B. A seed is a living thing and can grow into seedling
Explanation
A seed is a living thing and can grow into a seedling. Seeds are the reproductive structures of plants and contain all the necessary genetic material and nutrients to develop into a new plant. They are capable of germination, where they absorb water and begin to grow roots, shoots, and leaves. This process allows the seed to develop into a seedling and eventually mature into a fully grown plant. Therefore, a seed is indeed a living thing and has the potential to grow into a new plant.
15.
Which of the following is true about a seedling?
Correct Answer
B. A seedling has seed leaf to provide food
Explanation
A seedling has seed leaf to provide food. This is because when a seed germinates, it produces a small plant called a seedling. The seedling initially relies on the food stored in the seed itself, which is stored in the seed leaf or cotyledon. The seed leaf provides essential nutrients and energy for the seedling to grow until it can develop its own leaves and begin photosynthesis to produce its own food.
16.
A magnet is also known as _____________.
Correct Answer
C. Lodestone
Explanation
A magnet is also known as a lodestone because lodestone is a naturally occurring magnetic mineral. It has the ability to attract certain metals, such as iron, and has been used for centuries in compasses and navigation. The term "lodestone" is derived from the Middle English word "lode," meaning "way" or "course," and "stone," referring to the mineral's solid nature.
17.
Which of the following statement is false about a magnet?
Correct Answer
B. A magnet can only attract magnet
Explanation
A magnet can attract objects other than magnets, such as certain metals. This is because a magnet generates a magnetic field that can exert a force on objects that are responsive to magnetic fields.
18.
Which of the characteristic of a copper is true?
Correct Answer
C. Copper is water proof
Explanation
Copper is not water proof. It is a highly conductive metal that is commonly used in electrical wiring and plumbing due to its excellent conductivity and corrosion resistance. However, copper is not water proof as it can react with water and undergo oxidation over time.
19.
Which of the following is incorrect?
Correct Answer
A. Fungi feed on living things
Explanation
The correct answer is "Fungi feed on living things." This statement is incorrect because fungi are heterotrophic organisms that obtain nutrients by decomposing organic matter or by parasitizing other organisms. They do not feed on living things directly.
20.
Which of the following statement is false?
Correct Answer
A. All bacteria are harmful
Explanation
The statement "All bacteria are harmful" is false because not all bacteria are harmful. While some bacteria can cause diseases, there are also many beneficial bacteria that play important roles in various ecosystems and even in the human body.
21.
What is the shape of the tree below?
Correct Answer
Dome Shaped Tree
Dome
Explanation
The shape of the tree below is dome-shaped. This can be inferred from the description provided, which states "Dome Shaped Tree" and "Dome" as the options. The term "dome-shaped" suggests that the tree has a rounded, curved shape resembling a dome. Therefore, the correct answer is Dome Shaped Tree.
22.
What is the similarity between the paramecium and amoeba?
Correct Answer
They are both micro-organism and only can be seen through a microscope.
Micro-organism
Use microscope to see
Explanation
Paramecium and amoeba are similar in that they are both microorganisms and can only be seen through a microscope. They belong to the group of single-celled organisms that are too small to be visible to the naked eye. The use of a microscope is necessary to observe their structures and movements.
23.
What is the system show below?
Correct Answer
It is the muscular system.
muscular system
Explanation
The system shown in the given information is the muscular system. This system is responsible for the movement of the body and maintaining posture. It consists of muscles that are attached to bones and work together to allow for voluntary and involuntary movements. The muscular system also helps in the circulation of blood and the movement of food through the digestive system.
24.
What is the volume of the plasticine?
Correct Answer
The volume of the plasticine is 900 ㎤
900
25.
Why is plasticine classified as a solid although it can be moulded into various shapes?
Correct Answer
The plasticine has the properties of a solid where it has a definite volume and definite shape. Unless an external force is applied to modify its shape.
solid has definite shape and volume
definite shape and volume
Explanation
Plasticine is classified as a solid because it has a definite volume and shape. Even though it can be moulded into various shapes, it will maintain its new shape unless an external force is applied to modify it. This characteristic of plasticine aligns with the properties of a solid, which include having a definite shape and volume.
26.
What is the difference between a clinical thermometer and a laboratory thermometer?
Correct Answer
A clinical thermometer can take temperature of mainly human ranging from 35º to 42º while the laboratory has a wider range of temperature from -10º to 110º.
Difference in the range of temerature
Explanation
A clinical thermometer is designed specifically for measuring human body temperature and has a limited range of 35º to 42º. On the other hand, a laboratory thermometer is used for various scientific purposes and has a wider temperature range of -10º to 110º. The difference lies in the range of temperatures that each thermometer can measure.
27.
Both the thermometer above is not manufactured properly, what is missing from the thermometer?
Correct Answer
The constriction is missing from the thermometer.
constriction
Explanation
The constriction is missing from the thermometer. A constriction is a narrow point in the thermometer's tube that allows the temperature to be measured accurately. Without it, the thermometer will not function properly and will not be able to provide accurate temperature readings.
28.
What is the function of the constriction?
Correct Answer
The constriction is to prevent the alcohol from flowing backward to the bulb after the measurement of the temperature is taken. This allow to take down the temperature reading.
Explanation
The constriction in the thermometer prevents the alcohol from flowing back to the bulb after the temperature measurement is taken. This is important because it allows for an accurate temperature reading to be recorded. If the alcohol were to flow back to the bulb, it would affect the measurement and make it difficult to determine the correct temperature. Therefore, the constriction serves the function of ensuring that the alcohol remains in the part of the thermometer where the temperature is being measured.
29.
Explain how can we see with the presence of light.
Correct Answer
As light travel in a straight line and it bounces off from the object and reflects into our eyes.
Explanation
We can see with the presence of light because light travels in a straight line and when it encounters an object, it bounces off and reflects into our eyes. This reflected light carries information about the object's color, shape, and texture, which is then processed by our brain to form an image. Without light, there would be no source of illumination, and therefore no reflection or perception of objects around us.
30.
James placed a pot of plant in a cupboard for 2 weeks. He realized that the plant is still green and upright.
Explain how is it possible?
Correct Answer
The plant that James placed in the cupboard for 2 weeks is an artificial plant, therefore it not wither and die.
31.
Even without the presence of light, we still can see in the dark.
Correct Answer
B. False
Explanation
This statement is false. Without the presence of light, it is not possible for us to see in the dark. Our eyes rely on light to detect and process visual information. In the absence of light, our eyes cannot receive any visual stimuli, resulting in darkness and the inability to see.
32.
Light can be reflected on a rough surface also known as diffuse reflection
Correct Answer
A. True
Explanation
When light hits a rough surface, it scatters in different directions due to the irregularities on the surface. This phenomenon is known as diffuse reflection. Unlike smooth surfaces where light reflects at the same angle as it hits, rough surfaces cause the light to reflect in multiple directions, resulting in a diffused reflection. Therefore, the statement "Light can be reflected on a rough surface also known as diffuse reflection" is true.
33.
A magnet will lose its magnetism by burning at high temperature
Correct Answer
A. True
Explanation
When a magnet is exposed to high temperatures, the thermal energy can disrupt the alignment of its magnetic domains, causing them to become disordered. This disruption weakens or even destroys the magnetic field of the magnet, resulting in a loss of magnetism. Therefore, it is true that a magnet will lose its magnetism by burning at high temperature.
34.
Both spiders and insects have exoskeleton
Correct Answer
A. True
Explanation
Both spiders and insects have exoskeletons, which is a hard outer covering that provides support and protection for their bodies. This exoskeleton is made of a tough substance called chitin. It serves as a protective barrier against predators and helps to maintain the shape and structure of the spider or insect. Having an exoskeleton also allows spiders and insects to move and interact with their environment effectively. Therefore, the statement that both spiders and insects have exoskeletons is true.
35.
The function of a bird's feather is to help the bird to fly and keep them from warm
Correct Answer
B. False
Explanation
To keep them from cold or keep them warm NOT keep them from warm.