Year 3-Science Q

Why is a cloud not alive, even though it moves?

• It is a vapor

• It moves too much.

• It is made of water.

• It does not grow, breathe, or need food and water

Why do flowers have bright colors?

• To attract pollinators like bees and butterflies.

• To make them look pretty.

• To scare animals away.

• To blend in with the leaves.

What would happen if the sun disappeared for a week?

• The earth would warm up.

• Plants would survive without light.

• Plants would stop making food and might start to wilt.

• Plants would adapt to the dark.

Why do some plants grow better in warm weather?

• Warm temperatures help their seeds sprout and grow faster.

• They need more water in warm weather.

• The warm air helps them breathe.

• The sunlight is stronger.

What happens to a plant if its roots are damaged?

• It can still survive.

• It grows taller.

• It cannot get enough water and nutrients.

• It grows more leaves.

Why do cacti have thick stems?

• To protect them from animals.

• To store water in dry places.

• To store nutrients.

• To keep them warm.

Can plants grow without soil? How?

• Yes, in water with nutrients (hydroponics).

• No, they need soil.

• Yes, in the air.

• Yes, on trees.

What does it mean if a material is transparent?

• It reflects light

• It lets in a little light but you can't see clearly

• It does not let light pass through

• It allows light to pass through so you can see clearly

Name a material that is neither transparent nor translucent.

• Clear plastic

• Glass

• Wood

• Water

What happens to light when it hits a translucent material?

• It passes through completely

• Some light passes through, and some is scattered

• It is blocked entirely

• It bounces off