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Lemon Volcano

Build it⏱ 5 minutesAges 4-10

Lemon juice is an acid. Baking soda is a base. Together they make bubbles of gas.

Let's do it ↓

Grab this

  • 1 lemon cut in half
  • Baking soda
  • A plate
  • A spoon
  • Food coloring (optional)
Supplies for Lemon Volcano

Do it in 3 steps

Lemon Volcano step 1
1

Put the lemon half on a plate and poke the middle with a spoon.

Lemon Volcano step 2
2

Add a drop of food coloring.

Lemon Volcano step 3
3

Sprinkle baking soda on top and squeeze. Watch it fizz.

DO IT WITH ME

Your turn! Beat the clock.

Press start, then put the screen down and build. We'll cheer when time is up.

5:00

⭐ Bonus round

Which fizzes more, lemon or orange?

🧠 Why it works

Lemon juice is an acid. Baking soda is a base. Together they make bubbles of gas.

A grown up should be nearby for every challenge. Clean up together when you are done.

Did you do it?

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