Lesson 13 of 15 · Earth Materials
Experiment⭐ 30 XP🌋 Rock RealmHot or Cold?
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Earth Materials.
🎯 Your mission
Predict it first. Then prove yourself right (or wrong).
⚡ The twist
The slowest changes are the biggest ones.
Mind = Blown
🌊 The deepest part of the ocean is deeper than Mount Everest is tall.
Make a hypothesis first
Predict: which will erode faster?
What You'll Learn
A thermometer tells us how hot or cold it is outside.
Key Words
Tap a word to see its definition.
Materials Needed
- rocks
Safety First
- Have an adult check your set-up before you start, and tidy everything away afterwards.
Steps
Say the vocabulary words out loud. Can you repeat them?
Collect leaves, rocks, and sticks from outside. Sort them by size.
Did anything change? Point to what is different.
Point to the things you used in the activity.
Check Your Understanding
Question 1
1 of 3Is the sun hot or cold?
Where you see this in real life
Today's weather, tomorrow's beach, next century's coastline — all this.
Stretch Challenge
Try this in real life this week.
Look at the sky for 5 minutes and try to predict tomorrow's weather.
For the dinner table
“What's the slowest change you can think of?”
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.
Ready?
Hot or Cold?
Predict it first. Then prove yourself right (or wrong).
Full screen — no distractions
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