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Lesson 1 of 84 ยท Forces and Motion

Lessonโญ 30 XPโšก Spark Lab

Newton's First Law: Objects at Rest

๐ŸงชLab Brief #1

Forces and Motion.

๐ŸŽฏ Your mission

Understand the idea. Then look for it everywhere.

โšก The twist

Speed isn't the same as force. Don't mix them up.

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

Guess: where does the energy go?

What You'll Learn

Newton's first law states that an object at rest stays at rest and an object in motion stays in motion unless acted on by an unbalanced force. This is called inertia.

Key Words

  • gravity
  • friction
  • inertia

Steps

Step 1 โ€” Read

Read about Forces and Motion and write down three key facts.

Step 2 โ€” Do

Build a simple circuit using a battery, wire, and light bulb. Then add a switch and test what happens when you open and close it.

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 does Newton's third law state?

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.

๐ŸงชShare 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 and Motion for 3rd Grade

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

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