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Materials for the Farm's Seed Cart

Compare material tests to choose a rain cover and a pot liner for a farm's seed cart. Predict results and explain choices.

Grade 2ScienceInteractive · Printable

Aligned to2-PS1-2

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What’s included

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

Details

Format: Interactive · Printable
Grade: Grade 2
Subject: Science
Question types: Fill in the blank, Multiple choice, Circle the answer, Sorting, Short answer

About this worksheet

What students practice

Students compare test results to choose materials that meet the needs of a job.
Students predict how materials will perform using evidence from water, bending, and sliding tests.
Students identify ways to keep material comparisons fair.

How to use

Read the test descriptions together and review each graph's labels. Have students use the results, rather than guesses about familiar materials, to explain their choices.

Curriculum

NGSS standard covered

2-PS1-2

Test materials to decide which has the properties that are best for a job.

Preview

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Name Date

Materials for the Farm's Seed Cart

Use test results to predict how materials will do their jobs.

Test Possible Covers

Read about the tests. Use the graph and bending notes to answer the questions.

Keeping Seeds Dry

At a farm's planting shed, Jo loads seed packets onto a small cart. The cart needs a rain cover. The cover must keep water out and wrap around a curved handle without tearing. Jo tests four materials before choosing one.

For the water test, Jo cuts equal-size squares. Each square covers the opening of the same cup. Jo slowly pours 10 teaspoons of cool water onto each square, waits one minute, and measures how many teaspoons reached the cup. A fresh, dry square is used for each test.

For the bending test, Jo uses another dry square of each material. Jo tries wrapping each square around the same cardboard tube. The graph and notes show the results.

Bending test notes
Cotton cloth: wrapped around the tube without tearing.
Paper towel: wrapped around the tube without tearing.
Plastic board: stayed stiff and would not wrap around the tube.
Plastic sheet: wrapped around the tube without tearing.

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