Light and Heavy

Lab Brief #11

🎯 Your mission

Learn the rule. Then catch nature using it.

⚡ The twist

Color changes mean atoms are rearranging — even if you can't see them.

What you'll learn

Feathers are light and rocks are heavy. How do you know which is heavier?

Key words

Make a hypothesis first

Before you mix: what color do you think it'll turn?

Say your guess out loud — then find out if you were right.

Step 1 of 4 · Read

Say the vocabulary words out loud. Can you repeat them?

Step 2 of 4 · Do

Drop a rock and a feather into water. Which one sinks? Which one floats?

Step 3 of 4 · Observe

Look closely! What do you see?

Step 4 of 4 · Record

Draw a picture of what you learned today.

Question 1 of 2

Does a rock sink in water?

Question 2 of 2

Does a feather float in water?

Mind = blown

🌈 Every color you see is your brain inventing a translation of light frequencies.

Nice work!

You got 0 of 2 right.

🎯

We'll pick an experiment that matches exactly how you're thinking right now.

✨ More to explore

🌍 Where you see this in real life: This is happening in your kitchen right now — every time food cooks.

🏆 Stretch challenge (try it this week): Find one ingredient in a snack and look up what it does.

👨‍👩‍👧 For the dinner table: “What's something we cook that mixes things together this way?”

Send it to a parent who's looking for a 10-minute kitchen science win.

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