← Turmeric indicator: acid or base? lesson New set →

Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 523 · 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: turmeric powder is not needed for the turmeric test. (a) True (b) False
  2. 2.True or false: white paper strips is needed for the turmeric test. (a) True (b) False
  3. 3.🟡 Turmeric paper meets detergent water. What happens? (a) turns reddish-brown (b) stays yellow
  4. 4.🔍 Which is the odd one out? (a) salt water (b) baking soda water (c) soap solution (d) detergent water
  5. 5.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the turmeric paper”? (a) we measure it (b) we keep it the same (c) we change it
  6. 6.🧺 Which of these is not needed for the turmeric test? (a) a magnet (b) lemon juice (c) a dropper or spoon (d) white paper strips
  7. 7.🫧 Which of these is an acid? (a) salt water (b) baking soda water (c) curd (d) detergent water
  8. 8.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a magnet (b) turmeric powder (c) lemon juice (d) white paper strips
  9. 9.🧺 Do we need water for the turmeric test? (a) not needed (b) needed
  10. 10.🛟 Turmeric stains clothes. What should you wear? (a) your best clothes (b) a white party dress (c) an old shirt or apron (d) your school uniform
  11. 11.🧺 Do we need a battery cell for the turmeric test? (a) not needed (b) needed
  12. 12.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the light we look in (b) the colour we see (c) the number of drops (d) the turmeric paper
  13. 13.🔮 Predict: turmeric paper is dipped in salt water. What happens? (a) it turns black (b) it turns red (c) it turns blue (d) it stays yellow
  14. 14.True or false: water is needed for the turmeric test. (a) True (b) False
  15. 15.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) it turns green (b) it turns blue (c) reddish-brown (d) it stays yellow
  16. 16.🫧 Is lemon juice an acid, a base or neutral? (a) neutral (b) a base (c) an acid
  17. 17.🫧 Which of these is a base? (a) plain water (b) detergent water (c) lemon juice (d) salt water
  18. 18.🛟 Which rule keeps the turmeric test safe? (a) sniff each bottle hard (b) mix bathroom cleaners (c) use only kitchen items (d) sip each liquid
  19. 19.True or false: detergent water is an acid. (a) False (b) True
  20. 20.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) white paper strips (b) turmeric powder (c) lemon juice (d) yeast
  21. 21.🧺 Which of these is not needed for the turmeric test? (a) lemon juice (b) a battery cell (c) a dropper or spoon (d) soap solution
  22. 22.⚖️ 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
  23. 23.True or false: baking soda water keeps turmeric yellow. (a) True (b) False
  24. 24.True or false: baking soda water is a base. (a) True (b) False
  25. 25.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the liquid we test is what we measure. (a) False (b) True
  26. 26.True or false: a mirror is needed for the turmeric test. (a) True (b) False
  27. 27.🍋 A reddish turmeric spot gets a few drops of lemon juice. What happens? (a) it turns blue (b) it disappears (c) it turns darker red (d) it turns yellow again
  28. 28.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the light we look in is kept the same. (a) False (b) True
  29. 29.🧺 Which of these is needed for the turmeric test? (a) a balloon (b) a comb (c) soap solution (d) a mirror
  30. 30.True or false: baking soda water turns turmeric reddish-brown. (a) True (b) False
  31. 31.True or false: tamarind water is an acid. (a) True (b) False
  32. 32.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the liquid we test (b) the colour we see (c) the number of drops
  33. 33.🧺 Do we need a magnet for the turmeric test? (a) not needed (b) needed
  34. 34.🧺 Which of these is needed for the turmeric test? (a) water (b) a battery cell (c) yeast (d) a comb
  35. 35.🔍 Which is the odd one out? (a) detergent water (b) soap solution (c) baking soda water (d) sugar water
  36. 36.True or false: water is not needed for the turmeric test. (a) True (b) False
  37. 37.🧺 Do we need soap solution for the turmeric test? (a) not needed (b) needed
  38. 38.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a comb (b) white paper strips (c) soap solution (d) water
  39. 39.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the liquid we test is the one thing we change. (a) True (b) False
  40. 40.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the colour we see is what we measure. (a) False (b) True

Answer key

  1. False
  2. True
  3. turns reddish-brown
  4. salt water
  5. we keep it the same
  6. a magnet
  7. curd
  8. a magnet
  9. needed
  10. an old shirt or apron
  11. not needed
  12. the colour we see
  13. it stays yellow
  14. True
  15. reddish-brown
  16. an acid
  17. detergent water
  18. use only kitchen items
  19. False
  20. yeast
  21. a battery cell
  22. we keep it the same
  23. False
  24. True
  25. False
  26. False
  27. it turns yellow again
  28. True
  29. soap solution
  30. True
  31. True
  32. the number of drops
  33. not needed
  34. water
  35. sugar water
  36. False
  37. needed
  38. a comb
  39. True
  40. True

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