Lesson 44 of 84 · Earth Systems
Experiment⭐ 30 XP🌋 Rock RealmHow Sand Is Made (Part 2)
Earth Systems.
🎯 Your mission
Set it up. Test it. Be amazed.
⚡ The twist
The slowest changes are the biggest ones.
Mind = Blown
🪨 Every grain of sand on every beach used to be a mountain.
Make a hypothesis first
Predict: which will erode faster?
What You'll Learn
Sand at the beach was once big rocks that broke down over millions of years.
Key Words
Tap a word to see its definition.
Materials Needed
- sand
- clay
- water
- plastic tray
- magnifying glass
- newspaper
Safety First
- Dispose of materials properly after the experiment.
- Handle glass items carefully to avoid breakage.
- Do not mix unknown chemicals together.
Steps
Look at the picture and read the labels.
Pour water on a pile of sand and a pile of rocks. Watch how the water flows differently.
Draw a picture of what you observe.
Share your results with a partner.
Check Your Understanding
Question 1
1 of 3What is a volcano?
Where you see this in real life
This is shaping the ground you walk on, slowly, every single day.
Stretch Challenge
Try this in real life this week.
Find a rock outside and try to guess how old it is.
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.
Checkout complete lesson on Earth Systems for 2nd Grade
Get the full Earth Systems track as a printable PDF — all lessons, worksheets, and answer keys.