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Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 155 · 40 questions
TalentJR

What you do (Yellow or red?): 1. Mix turmeric powder with a little water into a paste and paint it on white paper strips; let them dry. 2. Put a drop of soap solution on one strip and a drop of lemon juice on another. 3. Write down the colour each drop makes. 4. Add lemon juice to the reddish spot and watch it change back.

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  1. 1.🧺 Do we need water for the turmeric test? (a) not needed (b) needed
  2. 2.True or false: orange juice is neutral. (a) True (b) False
  3. 3.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the turmeric paper”? (a) we keep it the same (b) we change it (c) we measure it
  4. 4.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the liquid we test is kept the same. (a) True (b) False
  5. 5.True or false: lemon juice keeps turmeric yellow. (a) False (b) True
  6. 6.True or false: a battery cell is not needed for the turmeric test. (a) False (b) True
  7. 7.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the light we look in is kept the same. (a) True (b) False
  8. 8.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is the one thing we change? (a) the turmeric paper (b) the colour we see (c) the liquid we test (d) the number of drops
  9. 9.🛟 Which rule keeps the turmeric test safe? (a) sip each liquid (b) sniff each bottle hard (c) mix bathroom cleaners (d) use only kitchen items
  10. 10.True or false: soap solution is not needed for the turmeric test. (a) False (b) True
  11. 11.True or false: a comb is not needed for the turmeric test. (a) True (b) False
  12. 12.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a dropper or spoon (b) white paper strips (c) a balloon (d) lemon juice
  13. 13.True or false: plain water turns turmeric reddish-brown. (a) False (b) True
  14. 14.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) it turns green (b) reddish-brown (c) it turns blue (d) it stays yellow
  15. 15.🟡 Which of these keeps turmeric yellow? (a) detergent water (b) baking soda water (c) vinegar (d) soap solution
  16. 16.🟡 Which of these turns turmeric reddish-brown? (a) tamarind water (b) detergent water (c) lemon juice (d) sugar water
  17. 17.🛟 Turmeric stains clothes. What should you wear? (a) an old shirt or apron (b) your best clothes (c) a white party dress (d) your school uniform
  18. 18.🫧 Which of these is neutral? (a) salt water (b) lemon juice (c) baking soda water (d) tamarind water
  19. 19.True or false: salt water turns turmeric reddish-brown. (a) True (b) False
  20. 20.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the light we look in is the one thing we change. (a) True (b) False
  21. 21.True or false: salt water keeps turmeric yellow. (a) True (b) False
  22. 22.🫧 Which of these is a base? (a) vinegar (b) lemon juice (c) sugar water (d) soap solution
  23. 23.🍋 A drop of lemon juice falls on turmeric paper. What happens? (a) it turns blue (b) it turns red (c) it turns black (d) it stays yellow
  24. 24.True or false: yeast is needed for the turmeric test. (a) True (b) False
  25. 25.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the colour we see is the one thing we change. (a) False (b) True
  26. 26.🟡 Which of these turns turmeric reddish-brown? (a) plain water (b) salt water (c) baking soda water (d) sugar water
  27. 27.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the liquid we test”? (a) we measure it (b) we keep it the same (c) we change it
  28. 28.🟡 Which of these turns turmeric reddish-brown? (a) soap solution (b) salt water (c) vinegar (d) plain water
  29. 29.🔍 Which is the odd one out? (a) baking soda water (b) sugar water (c) soap solution (d) detergent water
  30. 30.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the colour we see is what we measure. (a) True (b) False
  31. 31.🧺 Do we need white paper strips for the turmeric test? (a) not needed (b) needed
  32. 32.🧺 Do we need lemon juice for the turmeric test? (a) not needed (b) needed
  33. 33.🟡 Turmeric paper meets tamarind water. What happens? (a) turns reddish-brown (b) stays yellow
  34. 34.🟡 Which of these keeps turmeric yellow? (a) baking soda water (b) detergent water (c) soap solution (d) lemon juice
  35. 35.True or false: turmeric powder is not needed for the turmeric test. (a) False (b) True
  36. 36.🔍 Which is the odd one out? (a) detergent water (b) soap solution (c) baking soda water (d) tamarind water
  37. 37.True or false: tamarind water keeps turmeric yellow. (a) False (b) True
  38. 38.🟡 Turmeric paper meets lemon juice. What happens? (a) stays yellow (b) turns reddish-brown
  39. 39.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the light we look in”? (a) we measure it (b) we change it (c) we keep it the same
  40. 40.🧺 Do we need a magnet for the turmeric test? (a) needed (b) not needed

Answer key

  1. needed
  2. False
  3. we keep it the same
  4. False
  5. True
  6. True
  7. True
  8. the liquid we test
  9. use only kitchen items
  10. False
  11. True
  12. a balloon
  13. False
  14. reddish-brown
  15. vinegar
  16. detergent water
  17. an old shirt or apron
  18. salt water
  19. False
  20. False
  21. True
  22. soap solution
  23. it stays yellow
  24. False
  25. False
  26. baking soda water
  27. we change it
  28. soap solution
  29. sugar water
  30. True
  31. needed
  32. needed
  33. stays yellow
  34. lemon juice
  35. False
  36. tamarind water
  37. True
  38. stays yellow
  39. we keep it the same
  40. not needed

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