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A Liner for the Berry Rinse Basket

Use kitchen material-test data to choose a berry basket liner, compare properties, and plan fair tests.

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
14 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 water-flow and wet-strength data for four materials.
Students use test results to choose materials with properties suited to a job.
Students identify fair testing steps and limits of test evidence.

How to use

Read the investigation together and review the graph scale. Have students use both tests to choose a liner and explain their choice with evidence.

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

A Liner for the Berry Rinse Basket

Use material tests to solve a kitchen problem.

Read the Kitchen Tests

Read about the tests. Use the graph and wet-strength results to answer.

Getting Ready to Rinse Berries

A cooking class needs a liner for a berry rinse basket. The liner must let rinse water pass through. It must also hold the berries without tearing when wet. The class tests nylon mesh, cotton cloth, paper towel, and a plastic sheet. Nylon mesh is a fabric with many small holes.

First, students cut equal-sized squares. They clip one square over an empty tub. They pour ten small spoonfuls of cool water onto it. After ten seconds, they measure the water in the tub with the same spoon. They repeat these steps for each material. The graph shows their results.

Next, they test wet strength. They wet a fresh square of each material and clip it over the same tub opening. They place the same ten smooth counters in the middle for ten seconds. They check whether the material tears. Counters stand in for the weight of berries. No one eats food from the test materials.

Wet-strength results
Nylon mesh: held all ten counters; no tear.
Cotton cloth: held all ten counters; no tear.
Paper towel: tore before ten seconds were up.
Plastic sheet: held all ten counters; no tear.

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