Unit 7: Ecosystem and Life Cycle of Plants

Erin placed her shamrock plant in a dark corner. Soon she saw that the leaves had tilted toward her window. What did the plant need most from the window?

• sunlight during the day

• air during the day

• darkness at night

• warmth at night

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NGSS.MS-LS1-5

NGSS.MS-LS1-6

Why do most of the leaves of forest trees grow at the top of the tree?

• to scatter seeds

• to capture the sunlight

• to shade the trunk

• to collect water

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NGSS.MS-LS1-5

NGSS.MS-LS1-6

Which list shows the correct order of the life-cycle stages for a flowering plant?

• seed → seedling → flower → adult plant → germinate

• seed → seedling →adult plant → germinate → flower

• seed → seedling → flower → adult plant

• seed →germinate→ seedling → adult plant → flower

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NGSS.3-LS1-1

Which would most help pollinators find flowers that are pollinated at night?

• shape

• color

• size

• smell

How do plants get water and minerals?

• absorbed from the soil through the roots

• absorbed from the soil through the stem

• absorbed from the air through the flowers

• absorbed from the air through the leaves

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NGSS.5-LS1-1

NGSS.5-LS2-1

The table above shows parts of a plant. Which part is the leaves?

• 1

• 2

• 3

• 4

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NGSS.MS-LS1-6

This is a list of jobs of a plant part. Which plant part does all these jobs?

• leaf

• root

• flower

• stem

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NGSS.4-LS1-1

Which two are functions of flowers?

• attract pollinators and make seeds

• make seeds and store food

• store food and take in water

• take in water and attract pollinators

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NGSS.MS-LS1-4

How does the presence of organic matter (leaves, dead plants, compost) contribute to good soil?

• It adds nutrients to the soil.

• It helps the soil to dry out.

• It keeps the soil cool

• It destroys bacteria in the soil

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

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NGSS.MS-LS2-4

Which BEST explains how nutrients get into soil?

• through exposure to air

• by absorbing sunlight

• through decaying matter

• by rocks eroding