Lesson 37 of 84 · Light
Experiment⭐ 30 XP⚡ Spark LabWhat Is a Fair Test? (Part 2)
What Is a Fair Test? (Part 2).
🎯 Your mission
Set it up. Test it. Be amazed.
⚡ The twist
Speed isn't the same as force. Don't mix them up.
Mind = Blown
🔥 A bolt of lightning is 5 times hotter than the surface of the sun.
Make a hypothesis first
Guess: where does the energy go?
What You'll Learn
A fair test changes only one thing. If you change two things, you will not know which one made the difference.
Key Words
Tap a word to see its definition.
Materials Needed
- ruler
- markers
- popsicle sticks
- pennies
Safety First
- Do not look directly at the sun or bright lights.
- Clean up spills immediately to prevent slipping.
Steps
Look at the new words. Can you say each one?
Design a boat from foil that can hold the most pennies without sinking.
Use your senses to describe what you notice.
Write 1-2 sentences about what happened.
Check Your Understanding
Question 1
1 of 3What does 'predict' mean?
Where you see this in real life
You use this every time you flip a light switch, ride a bike, or kick a ball.
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.
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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