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No-Touch Tests Beside the Playground Game Grid

Use playground investigation results to ask testable questions about electric and magnetic pushes and pulls across a gap.

Grade 3ScienceInteractive · Printable

Aligned to3-PS2-3

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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, Matching, Circle the answer, Sorting, Short answer

About this worksheet

What students practice

Students ask cause-and-effect questions about electric and magnetic forces acting across a gap.
Students identify changes and measurements that can answer questions about noncontact forces.
Students support a claim about noncontact forces using investigation results.

How to use

Read the investigation steps aloud and discuss what counts as motion before contact. Students then use the results to evaluate and write questions for further tests.

Curriculum

NGSS standard covered

3-PS2-3

Ask questions about cause and effect in electric and magnetic forces between objects that are not touching.

Preview

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Name Date

No-Touch Tests Beside the Playground Game Grid

Use investigation results to ask questions about electric and magnetic forces.

Investigate a Moving Magnet

Read the steps and results. Think about what the class changed, observed, and could ask next.

Science Beside the Giant Game Grid

Beside the playground's giant tic-tac-toe panel, a class sets up an investigation on a sheltered bench. An adult handles the bar magnets and keeps them away from mouths and electronic devices. The class records whether objects begin moving while a gap remains, rather than waiting until the objects touch.

Step 1: The adult fastens one bar magnet to a lightweight cart. Its north end points toward a second magnet. The cart can roll along a level, smooth tray.

Step 2: The adult marks starting places for the cart and the second magnet. A small gap separates the magnets. The north end of the second magnet faces the cart's north end.

Step 3: The adult holds the second magnet still and releases the cart without pushing it. Students watch for four seconds and record the cart's first movement before contact.

Step 4: The class resets the cart and repeats the test for six tries. Step 5: The adult turns the second magnet so its south end faces the cart's north end. The class makes six more tries. The cart, tray, magnets, starting gap, and watching time stay the same.

Magnet Test Results
Facing ends | First movement while a gap remained
North facing north | Cart moved away in 6 of 6 tries
North facing south | Cart moved toward the held magnet in 6 of 6 tries

Which cause-and-effect question did the class test?