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Rainbow Science Experiment Worksheet

Science experiments lesson 5: Make a rainbow with water and sunlight · Set 167 · 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.

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

Answer key

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

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