22

Lesson 22 of 84 ยท Energy

Experimentโญ 30 XPโšก Spark Lab

Push and Pull Forces

๐ŸงชLab Brief #22

Push and Pull Forces.

๐ŸŽฏ Your mission

Predict it first. Then prove yourself right (or wrong).

โšก The twist

The opposite of what you expect is often what happens.

๐Ÿคฏ

Mind = Blown

๐Ÿ”ฅ A bolt of lightning is 5 times hotter than the surface of the sun.

๐Ÿ”ฎ

Make a hypothesis first

Predict: what happens if you double the force?

What You'll Learn

A force is a push or pull that can change an object's motion, shape, or direction. Forces are measured in Newtons and can act through contact or at a distance.

Key Words

  • inclined plane
  • wedge

Materials Needed

  • ramps
  • string
  • weights

Safety First

  • Do not taste any materials.
  • Wear safety goggles when mixing liquids.
  • Wash hands after handling materials.

Steps

Step 1 โ€” Read

Look at the vocabulary words and write a definition for each in your own words.

Step 2 โ€” Do

Build a simple motor using a battery, magnet, wire, and paper clip supports. Observe how electromagnetic forces create rotation.

Step 3 โ€” Observe

Observe what happens and describe it in detail.

Step 4 โ€” Record

Record your observations in your science journal with measurements and descriptions.

Check Your Understanding

Question 1

1 of 3

What is an electromagnet?

๐ŸŒ

Where you see this in real life

You use this every time you flip a light switch, ride a bike, or kick a ball.

๐Ÿ†

Stretch Challenge

Try this in real life this week.

Time how long a small ball rolls down something, then change the slope and try again.

๐Ÿ‘จโ€๐Ÿ‘ฉโ€๐Ÿ‘ง

For the dinner table

โ€œShow me something at home that uses this kind of energy.โ€

๐ŸŽฏ

Next Smart Experiment

We'll pick an experiment that matches exactly how you're thinking right now.

๐Ÿ”ฌShare card

Share this experiment

Send it to a parent who's looking for a 10-minute kitchen science win.

๐Ÿ–จ๏ธ

Checkout complete lesson on Energy for 4th Grade

Get the full Energy track as a printable PDF โ€” all lessons, worksheets, and answer keys.

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Push and Pull Forces โ€” Energy | 4th Grade Science | LittleActivity | LittleActivity