2nd Grade: Science Unit 4

Which is a basic need of plants?

• rocks

• sunlight

• wind

The plants in this pond are getting water and sunlight

What else do they need to live?

• air

• rocks

• pollen

• chocolate milk

What does a plant need from soil?

• earthworms

• nutrients

• rocks

• pollen

Which thing helps a plant make its own food?

• rocks

• space

• sunlight

• bananas

The leaves on some plants wilt and dry up. What should you do?

• Give the plants less water.

• Give the plants more water.

• Do not do anything. The plants will be fine.

Which tool can you use to measure plant growth?

• a hand lens

• a measuring cup

• a ruler

A dam causes water to back up, flooding an area of forest. What will most likely happen to those trees whose roots are now underwater?

• They will die.

• Nothing will change.

• They will grow faster.

Rachel planted the same kind of seeds on the same day in the same kind of soil. She placed the plants by the window and watered them each day. This is how the plants looked after two weeks.

• Rachel did not give any of the plants enough water.

• Rachel gave all the plants the same amount of water.

• Rachel gave some plants more water than other plants.

How are flowers and leaves different?

• Flowers make seeds. Leaves make food.

• Flowers make food. Leaves take in water and nutrients.

• Flowers take in water and nutrients. Leaves make seeds.

Look at this picture.

What does this insect carry from one flower to another?

• nutrients

• pollen

• seeds