Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 476 · 40 questions

What you do (Bend and split): 1. Fill a clear glass with water and set it on a steady, sunny windowsill. 2. Put white paper on the floor where the sunlight passes through the glass. 3. Move the paper or glass slowly until a rainbow appears. 4. Never look straight at the Sun.

1. 1.🛟 Which rule keeps you safe when working with sunlight? (a) look at it through glass (b) stare at the Sun (c) look at it in a mirror (d) never look at the Sun
2. 2.🌈 In VIBGYOR, what number colour is indigo?
3. 3.🧺 Do we need a sunny window for the water rainbow? (a) needed (b) not needed
4. 4.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) clouds (b) balloons (c) magnets (d) prisms
5. 5.True or false: a sunny window is needed for the water rainbow. (a) True (b) False
6. 6.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) it turns all red (b) it floats away (c) it turns brighter (d) the rainbow fades
7. 7.True or false: a battery cell is needed for the water rainbow. (a) False (b) True
8. 8.🛟 Why should the glass of water stand on a steady, flat place? (a) so it gets hot (b) so it does not fall (c) so the Sun moves (d) so it turns blue
9. 9.🧺 Do we need a mirror for the water rainbow? (a) not needed (b) needed
10. 10.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is what we measure? (a) brightness of rainbow (b) the same white paper (c) the amount of water (d) the same glass
11. 11.📘 What do we call light bending as it passes from air into water? (a) magnetism (b) evaporation (c) refraction (d) reflection
12. 12.🌈 How many colours do we name in a rainbow (VIBGYOR)?
13. 13.True or false: a sheet of white paper is needed for the water rainbow. (a) True (b) False
14. 14.🧺 Which of these is needed for the water rainbow? (a) a clear glass of water (b) yeast (c) a battery cell (d) a mirror
15. 15.🧺 Do we need a clear glass of water for the water rainbow? (a) needed (b) not needed
16. 16.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same white paper is what we measure. (a) True (b) False
17. 17.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same white paper is kept the same. (a) True (b) False
18. 18.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same window is the one thing we change. (a) True (b) False
19. 19.True or false: a sunny window is not needed for the water rainbow. (a) True (b) False
20. 20.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) bright sunlight (c) a clear glass of water (d) turmeric powder
21. 21.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “the time of day”? (a) we measure it (b) we keep it the same (c) we change it
22. 22.True or false: turmeric powder is needed for the water rainbow. (a) True (b) False
23. 23.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “brightness of rainbow”? (a) we change it (b) we measure it (c) we keep it the same
24. 24.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “the same glass”? (a) we measure it (b) we change it (c) we keep it the same
25. 25.True or false: a magnet is needed for the water rainbow. (a) True (b) False
26. 26.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) a sunny window (c) bright sunlight (d) a battery cell
27. 27.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) a magnet (b) a shadow of ice (c) snow falling (d) a small rainbow
28. 28.🌈 In VIBGYOR, what number colour is blue?
29. 29.🧺 Which of these is needed for the water rainbow? (a) a magnet (b) a sheet of white paper (c) a mirror (d) yeast
30. 30.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) violet (b) red (c) green (d) blue
31. 31.🌈 In VIBGYOR, what number colour is red?
32. 32.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: brightness of rainbow is kept the same. (a) False (b) True
33. 33.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a magnet (b) bright sunlight (c) a sunny window (d) a sheet of white paper
34. 34.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a balloon (b) bright sunlight (c) a sheet of white paper (d) a clear glass of water
35. 35.True or false: turmeric powder is not needed for the water rainbow. (a) False (b) True
36. 36.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same glass is kept the same. (a) False (b) True
37. 37.🧺 Do we need a balloon for the water rainbow? (a) not needed (b) needed
38. 38.🧺 Do we need a magnet for the water rainbow? (a) not needed (b) needed
39. 39.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “the same white paper”? (a) we keep it the same (b) we change it (c) we measure it
40. 40.🧺 Do we need turmeric powder for the water rainbow? (a) needed (b) not needed

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids