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Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 437 · 40 questions
TalentJR

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.

NameDateTime takenScore ___ / 40
  1. 1.🌈 In VIBGYOR, what number colour is orange?
  2. 2.⚖️ 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 keep it the same (b) we change it (c) we measure it
  3. 3.⚖️ 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
  4. 4.🧺 Do we need turmeric powder for the water rainbow? (a) needed (b) not needed
  5. 5.True or false: bright sunlight is needed for the water rainbow. (a) True (b) False
  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 keep it the same (b) we measure it (c) we change it
  7. 7.🌈 How many colours do we name in a rainbow (VIBGYOR)?
  8. 8.True or false: a clear glass of water is not needed for the water rainbow. (a) True (b) False
  9. 9.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: brightness of rainbow is what we measure. (a) True (b) False
  10. 10.🛟 Which rule keeps you safe when working with sunlight? (a) look at it in a mirror (b) never look at the Sun (c) stare at the Sun (d) look at it through glass
  11. 11.🌈 In VIBGYOR, what number colour is blue?
  12. 12.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sunny window (b) a clear glass of water (c) a sheet of white paper (d) turmeric powder
  13. 13.⚖️ 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 glass (b) brightness of rainbow (c) the amount of water (d) the same window
  14. 14.🧺 Which of these is not needed for the water rainbow? (a) a balloon (b) a sheet of white paper (c) a clear glass of water (d) bright sunlight
  15. 15.True or false: a sunny window is needed for the water rainbow. (a) False (b) True
  16. 16.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the amount of water is what we measure. (a) True (b) False
  17. 17.True or false: a mirror is not needed for the water rainbow. (a) False (b) True
  18. 18.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) bright sunlight (c) a mirror (d) a clear glass of water
  19. 19.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) yeast (b) a sheet of white paper (c) bright sunlight (d) a sunny window
  20. 20.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a magnet (b) a sheet of white paper (c) a sunny window (d) bright sunlight
  21. 21.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same white paper is the one thing we change. (a) False (b) True
  22. 22.⚖️ 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 keep it the same (b) we measure it (c) we change it
  23. 23.🌈 Why does sunlight make a rainbow through a glass of water? (a) the glass is painted (b) water splits the light (c) the water is coloured (d) the paper makes colours
  24. 24.⚖️ 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 window (c) the same glass (d) the time of day
  25. 25.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a sheet of white paper (b) a clear glass of water (c) a sunny window (d) a balloon
  26. 26.🧺 Which of these is not needed for the water rainbow? (a) a sunny window (b) a clear glass of water (c) bright sunlight (d) a magnet
  27. 27.🧺 Do we need a sunny window for the water rainbow? (a) not needed (b) needed
  28. 28.🧺 Three of these are needed for the water rainbow. Which one is NOT needed? (a) a battery cell (b) a sunny window (c) bright sunlight (d) a clear glass of water
  29. 29.📘 What do we call light bending as it passes from air into water? (a) magnetism (b) reflection (c) refraction (d) evaporation
  30. 30.⚖️ Fair test — does the amount of water in the glass change how bright the rainbow is? True or false: the same glass is the one thing we change. (a) False (b) True
  31. 31.🧺 Which of these is not needed for the water rainbow? (a) turmeric powder (b) a clear glass of water (c) a sheet of white paper (d) a sunny window
  32. 32.⚖️ 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 amount of water (c) the same glass
  33. 33.🔮 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
  34. 34.🌦️ 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
  35. 35.True or false: a sheet of white paper is not needed for the water rainbow. (a) True (b) False
  36. 36.🧺 Which of these is needed for the water rainbow? (a) a mirror (b) a magnet (c) a battery cell (d) bright sunlight
  37. 37.⚖️ 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 measure it (b) we change it (c) we keep it the same
  38. 38.🧺 Which of these is needed for the water rainbow? (a) a mirror (b) a battery cell (c) turmeric powder (d) a clear glass of water
  39. 39.True or false: turmeric powder is not needed for the water rainbow. (a) True (b) False
  40. 40.☀️ What is white sunlight really made of? (a) tiny bits of dust (b) only yellow light (c) many colours mixed (d) tiny drops of water

Answer key

  1. 6
  2. we change it
  3. True
  4. not needed
  5. True
  6. we keep it the same
  7. 7
  8. False
  9. True
  10. never look at the Sun
  11. 3
  12. turmeric powder
  13. the amount of water
  14. a balloon
  15. True
  16. False
  17. True
  18. a mirror
  19. yeast
  20. a magnet
  21. False
  22. we measure it
  23. water splits the light
  24. brightness of rainbow
  25. a balloon
  26. a magnet
  27. needed
  28. a battery cell
  29. refraction
  30. False
  31. turmeric powder
  32. the same glass
  33. the rainbow fades
  34. behind you
  35. False
  36. bright sunlight
  37. we keep it the same
  38. a clear glass of water
  39. True
  40. many colours mixed

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