YEAR 3 PRIMARY SCIENCE REVISION QUIZ

Why is a tree considered alive, but a chair made from wood is not?

• The tree can grow and change, but the chair cannot.

• The chair was once part of a tree, so it’s still alive.

• The chair can move on its own, just like a tree.

If a plant is placed near a window and its leaves all grow toward the light, what does this tell you about the plant?

• A. The plant loves sunlight and is moving towards it to get more.

• B. The plant is trying to block the window from the sun.

• C. The plant doesn’t like the sunlight, so it’s hiding from it.

Why are the roots of a plant important?

• A. They absorb water and nutrients from the soil.

• B. They make food for the plant using sunlight.

• C. They help the plant grow flowers.

Ali found a seashell on the beach. He thinks it’s alive because it looks like it once belonged to a living animal. How would you explain to him whether or not the seashell is alive?

• The seashell is alive because it moves with the ocean waves.

• The seashell is alive because it came from an animal.

• The seashell is not alive because it no longer has the animal inside it.

If you placed two plants in different rooms—one in sunlight and one in the shade—which do you think would grow better and why?

• Both plants will grow the same because they both have soil.

• The plant in the shade because it gets to rest more.

• The plant in the sunlight because it needs light to make food.

Ms. Aisha has been trying to grow a plant, but the weather has been very cold. What can she do to help the plant grow better?

• Put it in a darker room to protect it from the cold

• Give it more water to keep it warm.

• Move it to a warmer place and make sure it gets sunlight.

Sarah planted a seed in a pot. After a few weeks, it grew into a small plant. Is the seed still alive after it has turned into a plant?

• No, because the seed disappears when the plant grows.

• Yes, because the seed is part of the plant’s life cycle.

• No, because the seed disappears when the plant grows.

What would happen if a plant got too much sunlight and not enough water?

• The plant would grow faster than usual.

• The plant would grow stronger and greener

• The plant would become dry and stop growing well.

Which part of the plant helps it make food?

• Flowers

• Leaves

• Roots

A toy robot can move and make sounds, just like an animal. Does this mean the robot is alive? Why or why not?

• Yes, because it can move and make sounds.

• No, because it doesn’t need food or water to survive.

• Yes, because it can talk and walk on its own