Lesson 75 of 84 · Energy
Experiment⭐ 30 XP⚡ Spark LabElectric Circuits (Part 3)
Electric Circuits (Part 3).
🎯 Your mission
Predict it first. Then prove yourself right (or wrong).
⚡ The twist
The opposite of what you expect is often what happens.
Mind = Blown
🔥 A bolt of lightning is 5 times hotter than the surface of the sun.
Make a hypothesis first
Predict: what happens if you double the force?
What You'll Learn
Energy can be transformed from one form to another but cannot be created or destroyed. A light bulb converts electrical energy into light and heat energy.
Key Words
- power
- electromagnetic
Materials Needed
- ruler
- cardboard
- marbles
Safety First
- Work in a well-ventilated area when using vinegar or other strong-smelling substances.
- Dispose of materials properly after the experiment.
Steps
Read the introduction and identify the main idea of this lesson.
Set up a pendulum with string and a washer. Change the string length and count swings per minute for each. Graph your results.
Compare the before and after states.
Write your conclusion: did the results match your hypothesis? What would you change next time?
Check Your Understanding
Question 1
1 of 3What is needed for a simple electric circuit?
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.
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Send it to a parent who's looking for a 10-minute kitchen science win.
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