Unit 4, Lesson 1, Midterm Review (Flower Power)

Where does a seed first begin to grow?

• topsoil

• bottomsoil

• brown soil

What does a plant begin as?

• a seed

• a root

• a leaf

What comes out of the seed and pushes down into the soil?

• a root

• a seed

• a stem

How are roots important for the growth of a plant?

• They take in water and minerals from the soil.

• They take in air to help the flower breathe.

• They take in light from the sun.

What makes soil nutritious (healthful) for plants to grow?

• worms, other animals, and minerals

• lots of sunlight

• wind

What gas does a plant produce (make) for people and animals to breathe?

• carbon dioxide

• oxygen

• topsoil

What three things does a plant need to make food?

• water, carbon dioxide, and energy from light

• oxygen, darkness, and earthworms

• Nobody knows how plants make food.

What gas does a plant need to make food for itself and live?

• carbon dioxide

• oxgen

• photosynthesis

How are flower petals important?

• They attract insects to the flower with their bright colors.

• They protect flowers with their bad smells and ugly colors.

• They aren't important. They are just pretty.

What do you call the powder from inside a flower that sticks to feeding insects?

• pollen

• angel dust

• seedlings