Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 212 · 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 same glass”? (a) we change it (b) we measure it (c) we keep it the same
2. 2.🧺 Which of these is needed for the water rainbow? (a) a balloon (b) a sunny window (c) a mirror (d) turmeric powder
3. 3.🧺 Do we need turmeric powder for the water rainbow? (a) needed (b) not needed
4. 4.⚖️ 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 white paper (b) the amount of water (c) brightness of rainbow (d) the same glass
5. 5.🌈 How many colours do we name in a rainbow (VIBGYOR)?
6. 6.⚖️ 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 change it (b) we measure it (c) we keep it the same
7. 7.⚖️ 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 measure it (c) we keep it the same
8. 8.🌈 In VIBGYOR, what number colour is indigo?
9. 9.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a clear glass of water (b) a balloon (c) bright sunlight (d) a sheet of white paper
10. 10.🧺 Which of these is needed for the water rainbow? (a) yeast (b) bright sunlight (c) a balloon (d) a mirror
11. 11.🧺 Which of these is not needed for the water rainbow? (a) a clear glass of water (b) bright sunlight (c) yeast (d) a sunny window
12. 12.🧺 Do we need a sunny window for the water rainbow? (a) not needed (b) needed
13. 13.🔮 What happens if a cloud covers the Sun during the rainbow experiment? (a) it floats away (b) it turns brighter (c) it turns all red (d) the rainbow fades
14. 14.🌈 In VIBGYOR, what number colour is violet?
15. 15.🧺 Do we need a mirror for the water rainbow? (a) not needed (b) needed
16. 16.⚖️ 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
17. 17.🧺 Do we need a battery cell for the water rainbow? (a) needed (b) not needed
18. 18.🧺 Do we need a magnet for the water rainbow? (a) not needed (b) needed
19. 19.☀️ What is white sunlight really made of? (a) only yellow light (b) many colours mixed (c) tiny bits of dust (d) tiny drops of water
20. 20.🛟 Why should the glass of water stand on a steady, flat place? (a) so it does not fall (b) so the Sun moves (c) so it turns blue (d) so it gets hot
21. 21.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a balloon (c) a sunny window (d) a clear glass of water
22. 22.⚖️ 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 glass (c) the time of day (d) the same window
23. 23.🌈 In VIBGYOR, what number colour is red?
24. 24.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? What do we do with “the amount of water”? (a) we change it (b) we keep it the same (c) we measure it
25. 25.True or false: a battery cell is not needed for the water rainbow. (a) True (b) False
26. 26.🌈 In VIBGYOR, what number colour is blue?
27. 27.🌈 In a rainbow in the sky, which colour is on the outside (top) edge? (a) green (b) red (c) violet (d) blue
28. 28.🧺 Which of these is not needed for the water rainbow? (a) bright sunlight (b) a sheet of white paper (c) a clear glass of water (d) a battery cell
29. 29.⚖️ 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
30. 30.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same window is kept the same. (a) True (b) False
31. 31.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) bright sunlight (b) a clear glass of water (c) yeast (d) a sheet of white paper
32. 32.🧺 Which of these is needed for the water rainbow? (a) a balloon (b) turmeric powder (c) a sheet of white paper (d) a battery cell
33. 33.🌈 In VIBGYOR, what number colour is yellow?
34. 34.True or false: a sunny window is not needed for the water rainbow. (a) False (b) True
35. 35.🌈 In a rainbow in the sky, which colour is on the inside (bottom) edge? (a) yellow (b) violet (c) red (d) orange
36. 36.🌈 In VIBGYOR, what number colour is green?
37. 37.🛟 Which rule keeps you safe when working with sunlight? (a) look at it through glass (b) never look at the Sun (c) look at it in a mirror (d) stare at the Sun
38. 38.🔮 Raindrops in the sky act like tiny ___ for sunlight. (a) magnets (b) balloons (c) prisms (d) clouds
39. 39.True or false: bright sunlight is not needed for the water rainbow. (a) False (b) True
40. 40.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a mirror (b) bright sunlight (c) a sunny window (d) a sheet of white paper

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