Understanding Plant Needs and Growth

What do plants need to survive?

• Sunlight, air, and water

• Rocks, sand, and metal

• Plastic, glass, and rubber

• Sugar, salt, and oil

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What might happen to a plant if it does not get enough water?

• It will wilt

• It will grow faster

• It will turn into a tree

• It will make fruit

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Which of these is a sign that a plant is unhealthy?

• Losing color

• Growing taller

• Making flowers

• Having green leaves

If a plant is healthy, what does it most likely have?

• Enough sunlight, air, and water

• Only water

• Only air

• Only sunlight

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What can scientists learn by comparing healthy and unhealthy plants?

• How each need affects growth

• How to make toys

• How to build houses

• How to cook food

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If a plant stops growing, what might be missing?

• Sunlight, air, or water

• Paint

• Rocks

• Sand

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Why do some plants lose color when they are stressed?

• Because they are not getting something they need

• Because they are happy

• Because they are too old

• Because they are in the dark

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If you see a plant wilting, what should you check first?

• If it has enough water, sunlight, and air

• If it has toys

• If it has shoes

• If it has a hat

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Imagine you have two plants: one is healthy and one is wilting. How could you find out what the wilting plant needs?

• Compare what each plant is getting (sunlight, air, water)

• Give both plants candy

• Move both plants to the shade

• Paint the leaves

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A scientist wants to know how water affects plant growth. What should the scientist do?

• Give some plants water and others no water, then compare their growth

• Give all plants the same amount of water

• Only look at healthy plants

• Only look at unhealthy plants

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