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Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 6 · 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.

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

Answer key

  1. False
  2. an old shirt or apron
  3. vinegar
  4. use only kitchen items
  5. a dropper or spoon
  6. vinegar
  7. needed
  8. a battery cell
  9. the liquid we test
  10. True
  11. True
  12. we keep it the same
  13. True
  14. False
  15. not needed
  16. we change it
  17. True
  18. plain water
  19. needed
  20. we keep it the same
  21. a comb
  22. turns reddish-brown
  23. plain water
  24. needed
  25. yeast
  26. the colour we see
  27. stays yellow
  28. False
  29. True
  30. True
  31. turns reddish-brown
  32. needed
  33. not needed
  34. stays yellow
  35. lemon juice
  36. a base
  37. vinegar
  38. salt water
  39. turmeric powder
  40. a balloon

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