unit 1 lesson 2

What do plants produce as a waste and recycle to humans?

• oxygen

• carbon dioxide

• chlorophyll

• soil

What two things do plants need for photosynthesis?

• sugar and oxygen

• carbon dioxide and sugar

• carbon dioxide and sunlight

• soil and water

Plants are considered the ___________ of the world

• stomata

• chloroplasts

• producers

• lungs

What is a producer?

• an organism

• a nonliving thing that makes its own food

• an organism that makes its own food

• none of the above

During photosynthesis plants produce sugar and

• carbon dioxide

• water

• sunlight

• oxygen

Algae is a producer. Name two things algae needs to make food.

• sunlight and carbon dioxide

• oxygen and sunlight

• sunlight and water

• soil and water

Through what process do green algae make their food?

• sunlight

• photosynthesis

• sugar

• Drive thru

What causes flowers to turn their heads to face the sun?

• the moon

• photosynthesis

• sunlight

• all of the above

Which of the following do plants NOT need to grow?

• none of these

• sunlight

• water

• soil

Which of the following do plants absorb?

• oxygen and water

• carbon dioxide, sunlight, water

• oxygen and sugar

• sunlight and oxygen