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25
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Plants have 5 requirements for photosynthesis, name any 3.
Sunlight, Water, Carbon dioxide, Soil, Chlorophyll
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25
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What do we call a material that does NOT conduct heat or electricity?
An insulator.
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25
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Give any two differences between mammals and birds.
E.g.: (1) Mammals birth live young, birds lay eggs. (2) Mammals have fur, birds have feathers.
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25
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What will happen to these two magnets?
They will repel each other (push each other away).
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25
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What is the opposite property of flexible?
Rigid/stiff
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25
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Why is gold used to make jewellery?
It is malleable, so it can be easily shaped into nice designs, it is pretty, and it does not rust.
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25
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How do recycling plants separate steel from aluminum?
Steel is magnetic and aluminum is not. A giant magnet is used to attract and remove the steel from the conveyer belt.
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25
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Give an example of how plants can be interdependent on animals.
Plants can depend on animals for: pollination, seed dispersal, and nutrients (soil decomposers).
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25
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A baby insect is called a ____.
Larva or Nymph
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heart
Other team wins 25 points!
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seesaw
Swap points!
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fairy
Take points!
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25
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baam
Lose 5 points!
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25
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In the following food chain, why is there an arrow from the decomposer to the producer?
The decomposer breaks down plant and animal material and returns the nutrients to the soil. The living plants use the nutrients for growing.
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25
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What are raw materials?
Materials that we get from the earth (e.g. plants, animals, minerals).
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trap
No points!
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magnet
Take 25 points!
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rocket
Go to first place!
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lifesaver
Give 5 points!
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25
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Two nails were placed in water and two in cooking oil. After three days, only the nails in water rusted. Why didn’t the nails in oil rust?
Rust occurs because of a reaction between metal, oxygen, and water. The oil prevents water and oxygen from touching the nail, so the nail cannot rust.
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trap
No points!
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shark
Other team loses 25 points!
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fairy
Take points!
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25
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banana
Go to last place!
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25
×
Give an example of where metals are used for safety around the house.
Burglar bars, fences, locks (any appropriate example).
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