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A Wand for the Backyard Magic Show

Compare weight and bending tests to choose a backyard magic-show wand, judge fair tests, and use evidence to improve a choice.

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, Matching, Circle the answer, Sorting, Short answer

About this worksheet

What students practice

Students compare weight and bending results for four material samples.
Students use two tested properties to choose a material suited to a job.
Students identify fair comparisons and further tests needed to check a material choice.

How to use

Read the investigation aloud and review both graph scales. Have students compare the two properties before choosing a strip and explaining their 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 Wand for the Backyard Magic Show

Compare material tests to choose a light wand that holds its shape.

Test the Wand Strips

Read about the investigation. Use both graphs to answer the questions.

Getting Ready for the Show

Imani is planning a magic show in her backyard. She needs a flat wand with a paper decoration at its tip. The wand tip may bend down 2 centimeters or less under the decoration's weight. Among strips that meet this rule, she wants the one that weighs the least.

An adult prepares smooth strips of wood, plastic, cardboard, and craft foam. Each strip has the same length and width. Imani first puts each strip on one side of a balance. She adds matching counters to the other side until the balance is level. More counters mean a heavier strip.

Next, she clamps each strip to the same table with 15 centimeters sticking out. She hangs the same small cup holding two counters from each tip. These counters stand in for the decoration's weight. After ten seconds, she measures how far the tip has moved down from its starting height. She uses a fresh, dry strip for each test. The graphs show her results.