73

Lesson 73 of 84 ยท Forces

Lessonโญ 30 XPโšก Spark Lab

Magnets: Attract and Repel (Part 3)

๐ŸงชLab Brief #73

Magnets: Attract and Repel (Part 3).

๐ŸŽฏ Your mission

Understand the idea. Then look for it everywhere.

โšก The twist

Energy never disappears โ€” it just hides somewhere else.

๐Ÿคฏ

Mind = Blown

๐ŸŽข You feel weightless on a roller coaster because you and the seat are falling at the same speed.

๐Ÿ”ฎ

Make a hypothesis first

Before you start: which will move faster, and why?

What You'll Learn

Magnets have north and south poles. Opposite poles attract and like poles repel. The magnetic field is strongest at the poles and gets weaker with distance.

Key Words

  • force
  • Newton
  • energy

Steps

Step 1 โ€” Read

Read about Forces and write down three key facts.

Step 2 โ€” Do

Build an electromagnet by wrapping insulated wire around a nail and connecting it to a battery. Test how many paper clips it can pick up. Try adding more wire coils.

Step 3 โ€” Observe

Look for patterns in your observations.

Step 4 โ€” Record

Make a graph or chart showing your results.

Check Your Understanding

Question 1

1 of 3

What happens when like magnetic poles are brought together?

๐ŸŒ

Where you see this in real life

This is why airplanes can fly and why rockets reach space.

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Stretch Challenge

Try this in real life this week.

This week, find one thing in your house that turns one kind of energy into another.

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.

๐ŸŒShare 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 Forces for 7th Grade

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

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Magnets: Attract and Repel (Part 3) โ€” Forces | 7th Grade Science | LittleActivity | LittleActivity