Science Quiz 18

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1. Which BEST defines the environment?

A. All the plants and animals in our surroundings that interact with each other

B. All the organisms and non-living things that surround us

C. The air and all the plants that surround us

D. It is the name given to where organisms live

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2. Which will NOT lead to soil degradation?

A. Growing different crops in sequence on the land

B. Clearing the land of all vegetation for a period of time

C. Using more than enough fertilizers on farm

D. Having large numbers of animals feeding on a small plot of land

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3. Which BEST defines climate change?

A. major long-term changes in weather patterns in a region over an extended period of time

B. changes in weather conditions according to climatic zone

C. short-term atmospheric changes caused by severe storms

D. changes in the daily conditions of the atmosphere

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4. Which describes suitable methods to reduce climate change?

A. Use more electrical appliances and burn coal to cook your food

B. Practice composting, drive fuel-efficient vehicles, use less fossil

C. Use fuels like kerosene to produce energy and stop the cutting down of trees

D. Use less paper, use only electrical appliances and reduce the burning of wood

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5. The pictures most likely came from what kind of poster? A poster that provided ways to .

A. reduce climate change

B. stop deforestation

C. reduce car emissions

D. enjoy the environment

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6. Which will LIKELY reduce the impact of erosion on hillsides?

A. 1

B. 1 and 2

C. 2 and 3

D. 2

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7. The picture below shows a common problem occurring in many forested areas.

Which is an UNLIKELY effect that this problem will have on the environment?

A. Increased flooding

B. Decreases in rainfall

C. Decreases in the amount of carbon dioxide in the air

D. Decreases in forest fires

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8. Read the information below then use it to answer question.

The residents from a community are having a problem of strong odours and an increased number of insect pests and rats. They believe that the local farm is responsible for the odour and pests. The people believe the chicken waste, and rotting vegetables and fruits produced by the farm are attracting the pests and creating the odour.

Which recommendation provides a SUITABLE solution to the problem?

A. Use large numbers of herbivores to get rid of the rotting fruits and vegetables.

B. Use insect baits and poisons to get rid of the pests.

C. Collect and truck the animal waste and rotting fruits and vegetables to the community river.

D. Create a compost pile and reuse the chicken waste as manure for the farm.

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9. The picture below shows a small cattle farm near a river. Observe the picture then use it to answer question.

Which is LIKELY to happen as a result of the small cattle farm?

A. Contamination of the surrounding river with animal waste

B. Soil erosion as a result of the overgrazing of animal

C. Contamination of the surrounding river with chemical fertilizers and pesticides

D. The spreading of disease to the wider community

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10. Which is a luminous object?

A. shiny apple

B. bicycle reflectors

C. sun

D. moon

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11. Which is a source of noise pollution?

A. a whisper

B. an airplane engine

C. the hiss of a snake

D. a heart beating

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12. Which is the BEST reason for a sound being classified as unpleasant?

A. The sound is harmful

B. The sound is loud and has a high pitch

C. The sound is muffled and has a high pitch

D. The sound is difficult to hear

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13. Which would be MOST effective at reducing sounds entering a window?

A. A thick paper

B. A sheet of cartridge paper

C. A thick sheet of foam

D. A sheet of cardboard

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14. Read the observation below then use it to answer question.

Since the completion of the factory in 2008, the cases of hearing loss among children have increased. Many animals that once lived in the area have also migrated.

What statement is likely true about the factory?

A. It is producing harmful sounds

B. It produced unpleasant sounds

C. It is very large and has taken up a lot of land

D. It is painted in white

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15. Which describes a reversible change?

A. New materials are formed but the changes can be undone

B. No new material is formed and the change can be undone

C. No new materials are formed and the change cannot be undone

D. New materials are formed and the change cannot be undone

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16. Which is an example of an irreversible change?

A. boiling water to form steam

B. melting candle wax

C. burning wood

D. mixing sugar and water

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17. A child read the information below on the back of a household product. Use the information to answer question.

Which of the following would you recommend to ensure that this product is stored safely?

I recommend storing this product in .

A. an open glass bottle on a counter, or any other airy location

B. a dry location away from children

C. a cool, airy location away from children

D. a cool, airy location in a tightly covered container away from children

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18. A child was asked to identify a suitable material from which exercise clothing could be made.

Which properties should the material possess? It should be .

A. hard, flexible and it should conduct heat

B. waterproof, strong and flexible

C. absorbent, strong and flexible

D. colourful, hard and it should conduct heat

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19. Which process is responsible for the changing from I to II?

A. Condensation

B. Freezing

C. Melting

D. Precipitation

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20. Which BEST explains a system? A system is a ____________________.

A. structure that carries out a specific functions

B. group of organs that carry out different function

C. group of organs that work together to carry out a specific function

D. way that organisms operate

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21. Which system is responsible for removing harmful substances from the body?

A. digestive system

B. excretory system

C. circulatory system

D. nervous system

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22. The diagram below shows an organ found in the human body. Use it to answer question.

To which system does the structure belong?

A. excretory system

B. respiratory system

C. nervous system

D. digestive system

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23. Which structure comes directly below the organ shown in the diagram?

A. small intestine

B. large intestine

C. oesophagus

D. bladder

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24. Which organ removes excess water in the form of water vapour from the body?

A. A

B. B

C. C

D. D

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25. Which BEST defines a mixture?

A mixture is a substance that contains .

A. particles that can be separated

B. one type of particle

C. particles which cannot be seen

D. particles that can only be separated using chemicals

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