Part 1 test: water and air — Science experiments for kids

What you do

Find the experiment, use the idea — “decide which experiment a question is about, then use its science”

1. 1. Read the question and find its experiment.
2. 2. Use that experiment’s idea — density, dissolving, capillary action, light bending, air pressure, push-back, air resistance or condensation.
3. 3. For a fair-test question, find what is changed, kept the same and measured.
4. 4. For a safety question, choose what keeps everyone safe.

Use it for: Revision of Part 1 before a school science test, quiz or science fair.

Worked example: 🔮 A big log and a small pebble go into a pond. Which one floats? → the big log

✏️ Practice

Work it out in your head or on paper, type the answer and press Check. Stuck? Press “Show me how”.

🏁 Lesson 10 test

20 questions. Check each answer, then go to the next one. Get 16 or more right to pass.

🏅 Sign in with Google to earn the 🧪 Water and Air Scientist badge when you pass — and a certificate when you finish all 10 lessons of Part 1 · Water and air. You can still take the test without signing in.

🖨️ Water and Air Experiments Test Worksheet

• Worksheet set 1 (PDF)
• Worksheet set 2 (PDF)
• Worksheet set 3 (PDF)