Plant Structures

Joe grows a plant form a seed. While the plant is still small, he places it near a window in his room. Soon, he notices that the plant is not growing straight up, but bending to one side. Why is the plant no longer growing straight?

• The plant needs wind to scatter its seeds.

• The plant is growing towards the sunlight.

• The plant is getting heavier as it grows.

• The plant does not have strong roots.

Many plants need the help of insects, like bees to reproduce. What part of the plant helps to attract helpful insects?

• The leaves

• The stem

• The Flowers

• The roots

Chris and Brandon are looking at the plants grown in the school yard. They have learned that plants make their own food. Which plant part is the MOST important in making food for the plant?

• Stem

• Roots

• Leaves

• Flower

Answer explanation

A plant's leaves absorb energy from sunlight in a process called photosynthesis!

Catherine and her family went on vacation. While they were gone their cat knocked a plant onto the floor. In which direction will the ROOTS of the plant grow now?

• A

• B

• C

• D

Which part of the plant gets water and nutrients from the soil?

• A

• B

• C

• D

Why do plant roots grow downwards into the ground?

• Roots grow in the direction of gravity.

• Roots help the plant absorb light.

• There is more space to grow underground.

• The leaves push the roots downward as they grow.

Sarah places a small plant on a sunny windowsill in her room. How will the plant respond to sunlight?

• It will produce flowers.

• It will grow toward the sunlight.

• It will no longer use water.

• It will make its leaves smaller.

Aaron looks at plants in his school's garden after a storm. The storm brought strong winds but the plants did not blow away. Which part of the plant helped hold them in the ground during the storm?

• Stem

• Roots

• Flower

• Leaves

Ashley and her sister Liz are helping their mom pulled weeds from her garden. Some of the weeds have roots that have grown down very deep in the soil. Roots grow downward because of what?

• Friction

• Magnetism

• Heat

• Gravity

Which plant part provides the plant with support and carries water and nutrients to and from other parts of the plant?

• Stem

• Flower

• Roots

• Seeds