Lesson 79 of 84 · Forces
Experiment⭐ 30 XP⚡ Spark LabWork and Power (Part 3)
Work and Power (Part 3).
🎯 Your mission
Predict it first. Then prove yourself right (or wrong).
⚡ The twist
Energy never disappears — it just hides somewhere else.
Mind = Blown
⚡ Static electricity is the same physics as lightning, just smaller.
Make a hypothesis first
Before you start: which will move faster, and why?
What You'll Learn
Work in science means using a force to move an object a distance. If you push a box across the floor, you do work. If you push a wall and it doesn't move, no work is done.
Key Words
- simple machine
- lever
Materials Needed
- blocks
- spring scale
- stopwatch
- pencils
- toy cars
Safety First
- Protect your work surface with newspaper or plastic.
Steps
Look at the vocabulary words and write a definition for each in your own words.
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.
Use your senses (except taste) to describe what you notice.
Write a summary of your findings in 3-5 sentences.
Check Your Understanding
Question 1
1 of 3What is work in science?
Where you see this in real life
This is why airplanes can fly and why rockets reach space.
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.
For the dinner table
“Show me something at home that uses this kind of energy.”
Next Smart Experiment
We'll pick an experiment that matches exactly how you're thinking right now.
Share this experiment
Send it to a parent who's looking for a 10-minute kitchen science win.
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