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A Wrap for Tide-Pool Cards

Use a beach class investigation to compare materials and choose a clear, bendable, water-blocking wrap for tide-pool picture cards.

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, Matching, Circle the answer, Sorting, Short answer

About this worksheet

What students practice

Students compare results from tests of clarity, bending, and water blocking.
Students use test evidence to choose materials that meet the needs of a job.
Students identify fair comparisons and limits of a material test.

How to use

Read the investigation together and review the graph. Have students use the results to make choices, then explain their final 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 Wrap for Tide-Pool Cards

Use material tests to choose a cover for a beach job.

The Beach Class Tests

Read the investigation. Use the test results and graph to answer.

Protecting Our Picture Cards

A class takes tide-pool picture cards to a beach. Each card has a picture and words. The class wants a wrap that keeps splashes off, lets students read the words, and bends around the card.

An adult provides smooth-edged pieces of bag plastic, stiff lid plastic, waxed paper, and paper towel. All pieces are the same size. The class uses fresh, dry pieces for each test.

First, students lay each material over the same printed card. They try to read its words. Next, they try to bend each material around the same thick marker without forcing it.

Last, students place each material over a fresh card. They add 10 drops of fresh water and wait one minute. Then they check whether the card stayed dry. They repeat this water test four times for each material.

Words are easy to read through both plastics. Through waxed paper, words look too blurry to read. Paper towel hides the words. Bag plastic, waxed paper, and paper towel bend around the marker. Lid plastic does not.