Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 269 · 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.🌈 In VIBGYOR, what number colour is violet?
2. 2.⚖️ 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 keep it the same (b) we change it (c) we measure it
3. 3.🔮 Predict: you spray fine water drops with the Sun behind you. What may you see? (a) snow falling (b) a magnet (c) a shadow of ice (d) a small rainbow
4. 4.🧺 Do we need a magnet for the water rainbow? (a) not needed (b) needed
5. 5.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is what we measure? (a) the same glass (b) the time of day (c) the same white paper (d) brightness of rainbow
6. 6.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the amount of water is the one thing we change. (a) True (b) False
7. 7.🌦️ To see a rainbow in the sky, where must the Sun be? (a) in front of you (b) straight above you (c) under the ground (d) behind you
8. 8.True or false: bright sunlight is not needed for the water rainbow. (a) True (b) False
9. 9.🧺 Which of these is needed for the water rainbow? (a) bright sunlight (b) a balloon (c) yeast (d) a magnet
10. 10.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) red (b) yellow (c) violet (d) orange
11. 11.🌈 How many colours do we name in a rainbow (VIBGYOR)?
12. 12.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) balloons (b) clouds (c) prisms (d) magnets
13. 13.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a sunny window (c) a balloon (d) a clear glass of water
14. 14.🧺 Which of these is not needed for the water rainbow? (a) a sunny window (b) a sheet of white paper (c) a battery cell (d) bright sunlight
15. 15.True or false: a magnet is not needed for the water rainbow. (a) False (b) True
16. 16.🌈 In VIBGYOR, what number colour is red?
17. 17.True or false: yeast is needed for the water rainbow. (a) False (b) True
18. 18.🛟 Why should the glass of water stand on a steady, flat place? (a) so the Sun moves (b) so it does not fall (c) so it turns blue (d) so it gets hot
19. 19.True or false: a mirror 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 mirror (b) a clear glass of water (c) bright sunlight (d) a sheet of white paper
21. 21.🧺 Do we need a balloon for the water rainbow? (a) not needed (b) needed
22. 22.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) it turns brighter (b) it floats away (c) it turns all red (d) the rainbow fades
23. 23.🧺 Which of these is not needed for the water rainbow? (a) yeast (b) bright sunlight (c) a sheet of white paper (d) a sunny window
24. 24.⚖️ 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 amount of water (b) the same white paper (c) the time of day (d) brightness of rainbow
25. 25.🧺 Do we need bright sunlight for the water rainbow? (a) not needed (b) needed
26. 26.⚖️ 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 measure it (b) we keep it the same (c) we change it
27. 27.🌈 In VIBGYOR, what number colour is green?
28. 28.🧺 Which of these is needed for the water rainbow? (a) a sheet of white paper (b) a battery cell (c) a balloon (d) a magnet
29. 29.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same glass is what we measure. (a) False (b) True
30. 30.⚖️ 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 keep it the same (c) we measure it
31. 31.🧺 Which of these is needed for the water rainbow? (a) a battery cell (b) yeast (c) a mirror (d) a clear glass of water
32. 32.True or false: yeast is not needed for the water rainbow. (a) False (b) True
33. 33.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a balloon (c) a clear glass of water (d) a sunny window
34. 34.True or false: a balloon is not needed for the water rainbow. (a) False (b) True
35. 35.🌈 In VIBGYOR, what number colour is blue?
36. 36.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) green (b) blue (c) violet (d) red
37. 37.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? Which of these is kept the same? (a) brightness of rainbow (b) the same glass (c) the amount of water
38. 38.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a battery cell (b) a sheet of white paper (c) a sunny window (d) bright sunlight
39. 39.True or false: a sheet of white paper is not needed for the water rainbow. (a) True (b) False
40. 40.☀️ What is white sunlight really made of? (a) tiny drops of water (b) tiny bits of dust (c) many colours mixed (d) only yellow light

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