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Willow Changes at the Floating Field Station

Compare willow growth and leaf color at a lake field station to explain how light can affect plant traits.

Grade 3ScienceInteractive · Printable

Aligned to3-LS3-2

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What’s included

Single worksheet
Auto-graded online
1 NGSS standard
Printable answer key
14 questions
Classroom-ready

Details

Format: Interactive · Printable
Grade: Grade 3
Subject: Science
Question types: Fill in the blank, Multiple choice, Circle the answer, Sorting, Short answer

About this worksheet

What students practice

Students compare plant height and leaf color under different amounts of light.
Students use evidence to explain how the environment can affect plant traits.
Students distinguish supported conclusions from claims the investigation did not test.

How to use

Read the field-station passage together. Have students compare the two sets of observations and support their final explanation with evidence.

Curriculum

NGSS standard covered

3-LS3-2

Use evidence to explain that the environment can affect traits, such as a plant that gets too little water.

Preview

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Name Date

Willow Changes at the Floating Field Station

Use plant observations to investigate how surroundings can affect traits.

The First Three Weeks

Read the passage and graph. Use both to answer the questions.

Six Willows on a Lake Raft

A class visited a floating field station anchored in a quiet lake cove. The station studied young willow plants that might later be planted along the shore. A plant's traits are its features, such as height and leaf color. Its environment includes the light, water, and other conditions around it.

An adult prepared six young willow plants from cuttings of the same parent willow. Each cutting had grown roots before the test began. Each plant started at 10 centimeters tall with green leaves. The class labeled the plants A through F and placed them in matching pots.

The class changed the number of hours of light. In a covered work area, plants A, B, and C received six hours of light each day. Plants D, E, and F received one hour. An adult controlled two matching cool plant lamps with timers. The plants received no other light. The class used the same kind and amount of soil, the same amount of water, and the same room temperature. The soil in each pot stayed moist.

After three weeks, the class measured each plant from the soil to its highest tip. The graph shows those heights. The class also checked leaf color. New leaves on A, B, and C were green. New leaves on D, E, and F were pale green.