Evaporation and Condensation

Lab Brief #5

🎯 Your mission

Set it up. Test it. Be amazed.

⚡ The twist

If it bubbles, something invisible is escaping.

What you'll learn

Evaporation happens when liquid particles at the surface gain enough energy to escape into the air as gas. Condensation is the reverse—gas particles slow down and form liquid.

Key words

evaporation
When a liquid slowly turns into a gas or vapor.
condensation
When a gas cools and turns into tiny drops of liquid.
liquid
A wet material that flows and takes the shape of its container.

Make a hypothesis first

Guess: will the fizz be loud, soft, or none at all?

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

Get ready

🧰 What you need

vinegar
baking soda
paper towels

⚠️ Safety first

Wear eye protection, keep the substance off skin, and wash your hands when you finish.
Mop up spills straight away so nobody slips, and keep liquids away from sockets.

Step 1 of 4 · Read

Look at the vocabulary words and write a definition for each in your own words.

Step 2 of 4 · Do

Test 5 household liquids (vinegar, milk, lemon juice, baking soda water, soap) with pH paper. Classify each as acid, base, or neutral.

Step 3 of 4 · Observe

Watch carefully for any changes and note the time.

Step 4 of 4 · Record

Create a data table to organize your measurements.

Question 1 of 3

What happens during evaporation?

How sure are you?😐 maybe

Question 2 of 3

What is condensation?

How sure are you?😐 maybe

Question 3 of 3

What happens to particle motion when matter is heated?

How sure are you?😐 maybe

Mind = blown

🧪 If you could remove all the empty space from atoms, the entire human race would fit in a sugar cube.

Nice work!

You got 0 of 3 right.

Next: Solutes and Solvents All lessons

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✨ 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?”

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