Lesson 1 of 84 · Forces
Lesson⭐ 30 XP⚡ Spark LabWind Pushes Sails
Wind Pushes Sails.
🎯 Your mission
Learn the rule. Then catch nature using it.
⚡ The twist
The opposite of what you expect is often what happens.
Mind = Blown
🎢 You feel weightless on a roller coaster because you and the seat are falling at the same speed.
Make a hypothesis first
Predict: what happens if you double the force?
What You'll Learn
Wind is moving air that pushes things. Sails catch wind to move boats!
Key Words
Tap a word to see its definition.
Steps
Read about Forces with a partner or grown-up.
Push a toy car across the carpet, then across a smooth floor. Measure how far it goes each time.
Watch carefully. What happens?
Draw and write about what you learned.
Check Your Understanding
Question 1
1 of 3What is gravity?
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
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