Ocean Sunlight: How Tiny Plants Feed The Seas

1. After you breathe out carbon dioxide, _______.

• The sun goes down for the night.

• Sugar is poured back onto the plants.

• Plants pull the carbon dioxide back in.

• You can eat more.

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CCSS.RI.3.1

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2. When you eat food, your body is breaking down ________.

• molecules

• sugar

• plants

• oxygen

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CCSS.RI.3.4

3. Phytoplankton grows slowly.

• TRUE

• FALSE

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CCSS.RI.3.1

4. Who is the speaker in this book?

• Phytoplankton

• The sun

• Zooplankton

• The ocean

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CCSS.RI.3.1

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5. What is the first step in the food chain?

• When plants catch the sun's light

• When the sun goes down at night.

• When larger animals eat smaller animals.

• When animals eat plants.

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CCSS.RI.3.1

6. Why do some sea creatures have lights on their bodies?

• To help them stay disguised

• To help them stay warm

• To make them look beautiful

• To be able to see their prey in the deep waters

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CCSS.RI.3.1

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7. Why isn't the ocean overfilled with phytoplankton?

• People scoop it all out.

• It disappears into the deep ocean.

• The zooplankton eat it.

• Phytoplankton grows too slowly to fill the ocean.

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CCSS.RI.3.1

8. How do creatures living at the bottom of the ocean get food?

• Their lights help them to see their food.

• They wait for marine snow to fall.

• They swim up to the top to eat.

• They eat other animals that live on the bottom.

• All of the above.

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CCSS.RI.3.1

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9. What is the main idea of Ocean Sunlight?

• All living things are connected.

• Animals only eat because of the plants in the food chain.

• The sun does not help animal life in the ocean.

• All of the above.

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CCSS.RI.3.2

10. Because 50% of the air we breathe comes from phytoplankton in the ocean and the other 50% comes from the plants on land, what do we know is true?

• The oxygen we breathe from the ocean is more important than the oxygen from plants.

• All oxygen we breathe comes from plant life.

• You need to take deeper breaths to get the oxygen from the plants.

• Plants have to be green in order to get oxygen from them.

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CCSS.RI.3.1

CCSS.RI.3.2