Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 832 · 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.⚖️ 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
2. 2.True or false: a battery cell is needed for the water rainbow. (a) True (b) False
3. 3.🌈 In VIBGYOR, what number colour is violet?
4. 4.🌈 In VIBGYOR, what number colour is indigo?
5. 5.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) a small rainbow (b) a magnet (c) a shadow of ice (d) snow falling
6. 6.☀️ What is white sunlight really made of? (a) many colours mixed (b) tiny drops of water (c) only yellow light (d) tiny bits of dust
7. 7.True or false: turmeric powder is needed for the water rainbow. (a) True (b) False
8. 8.True or false: a clear glass of water is not needed for the water rainbow. (a) False (b) True
9. 9.🛟 Which rule keeps you safe when working with sunlight? (a) look at it through glass (b) never look at the Sun (c) stare at the Sun (d) look at it in a mirror
10. 10.🧺 Do we need yeast for the water rainbow? (a) needed (b) not needed
11. 11.True or false: a sheet of white paper is needed for the water rainbow. (a) True (b) False
12. 12.True or false: a sunny window is needed for the water rainbow. (a) False (b) True
13. 13.⚖️ 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 change it (b) we measure it (c) we keep it the same
14. 14.🌈 In VIBGYOR, what number colour is yellow?
15. 15.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a clear glass of water (b) a balloon (c) a sunny window (d) a sheet of white paper
16. 16.⚖️ 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) False (b) True
17. 17.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a magnet (c) a clear glass of water (d) a sheet of white paper
18. 18.🌈 How many colours do we name in a rainbow (VIBGYOR)?
19. 19.🌈 In VIBGYOR, what number colour is green?
20. 20.⚖️ 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
21. 21.🌈 In VIBGYOR, what number colour is red?
22. 22.🧺 Which of these is needed for the water rainbow? (a) a battery cell (b) a sunny window (c) a balloon (d) turmeric powder
23. 23.🧺 Do we need a clear glass of water for the water rainbow? (a) not needed (b) needed
24. 24.🌈 Why does sunlight make a rainbow through a glass of water? (a) the water is coloured (b) water splits the light (c) the paper makes colours (d) the glass is painted
25. 25.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) balloons (b) prisms (c) clouds (d) magnets
26. 26.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is the one thing we change? (a) the same window (b) the amount of water (c) the same glass (d) the same white paper
27. 27.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) a sheet of white paper (c) a clear glass of water (d) a mirror
28. 28.True or false: bright sunlight is needed for the water rainbow. (a) True (b) False
29. 29.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) violet (b) blue (c) green (d) red
30. 30.🧺 Do we need bright sunlight for the water rainbow? (a) not needed (b) needed
31. 31.True or false: a mirror is needed for the water rainbow. (a) False (b) True
32. 32.🧺 Which of these is needed for the water rainbow? (a) a clear glass of water (b) yeast (c) turmeric powder (d) a mirror
33. 33.🧺 Do we need a balloon for the water rainbow? (a) needed (b) not needed
34. 34.⚖️ 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 change it (b) we keep it the same (c) we measure it
35. 35.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “the same window”? (a) we measure it (b) we change it (c) we keep it the same
36. 36.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) yeast (c) bright sunlight (d) a clear glass of water
37. 37.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) it turns brighter (b) the rainbow fades (c) it turns all red (d) it floats away
38. 38.🧺 Which of these is needed for the water rainbow? (a) a battery cell (b) a sheet of white paper (c) turmeric powder (d) a mirror
39. 39.🧺 Do we need a magnet for the water rainbow? (a) not needed (b) needed
40. 40.True or false: yeast is not needed for the water rainbow. (a) False (b) True

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