Science Unit 1 Lesson 1 Quiz

Plants need sunlight, air, water, and nutrients to

• drop their leaves

• stay alive and healthy

• protect them against animals

• attract insects that help them

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Which of these plant structures supports a plant so it does not fall over?

• seed

• leaf

• root

• flower

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One function of a stem is to

• produce food for the plant to use

• provide a place for insects to live

• take in water and nutrients from the soil

• hold up leaves so they can absorb sunlight

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Needle-shaped leaves help plants _________ more water than wide leaves.

• lose

• create

• absorb

• conserve

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A plant's vascular system is a system of tubes inside the plant that

• carries food, water, nutrients to all parts of the plant

• uses energy from light to make food

• takes in water and nutrients from the soil

• holds up the leaves so they can absorb sunlight

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NGSS.MS-LS2-1

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The image of a pea plant system shows its stem and roots. What function do both the stem and the roots have?

• holding up the leaves of the plant

• taking in water and nutrients from the soil

• using chlorophyll to capture light to make food

• providing support to keep the plant from falling over

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NGSS.4-LS1-1

Janet claims that plant structures can always do their jobs to help a plant grow. Raul claims that sometimes plant structures need help doing their jobs. He gives her an example that people sometimes use metal cages to help grow tomato plants. The picture shows tomato plants grown with cages.

Which of the following is evidence that supports Raul's argument?

• Cages help the stems get water from the soil when the plants become tall.

• Cages help the leaves hold up the plants when the plants become heavy.

• Cages help the roots get water from the soil when the plants become tall.

• Cages help the stems hold up the plants when the plants become heavy.

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Gina uses these pictures as evidence to construct an argument about plants. The pictures show the leaves from two different plants.

Which argument is Gina MOST LIKELY constructing about these plants?

• Both have waxy leaves to prevent water loss.

• Both contain chlorophyll in leaves to make food.

• Both have thick and fleshy leaves to store water.

• Both have thin and sharp leaves to prevent water loss.

Xavier draws a model to show how a plant gets food and water. Part of Xavier's model is incorrect. What should he do to correct the model?

• Switch the labels for stem and roots.

• Reverse the direction of the arrows for water.

• Reverse the direction of the arrows for sugar.

• Switch the labels for carbon dioxide and oxygen.

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NGSS.MS-LS2-3

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