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

Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 785 · 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.🫧 Which of these is neutral? (a) lemon juice (b) baking soda water (c) sugar water (d) soap solution
  2. 2.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) water (b) a magnet (c) white paper strips (d) turmeric powder
  3. 3.🧺 Which of these is not needed for the turmeric test? (a) a comb (b) turmeric powder (c) water (d) soap solution
  4. 4.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) it stays yellow (b) it turns blue (c) reddish-brown (d) it turns green
  5. 5.True or false: lemon juice is neutral. (a) False (b) True
  6. 6.🟡 Which of these turns turmeric reddish-brown? (a) baking soda water (b) lemon juice (c) plain water (d) vinegar
  7. 7.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) white paper strips (b) soap solution (c) a battery cell (d) water
  8. 8.True or false: lemon juice is an acid. (a) False (b) True
  9. 9.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the liquid we test”? (a) we change it (b) we keep it the same (c) we measure it
  10. 10.True or false: baking soda water keeps turmeric yellow. (a) False (b) True
  11. 11.🔍 Which is the odd one out? (a) sugar water (b) baking soda water (c) plain water (d) salt water
  12. 12.🫧 Is sugar water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
  13. 13.True or false: soap solution keeps turmeric yellow. (a) False (b) True
  14. 14.🛟 Turmeric stains clothes. What should you wear? (a) your school uniform (b) an old shirt or apron (c) your best clothes (d) a white party dress
  15. 15.True or false: water is not needed for the turmeric test. (a) True (b) False
  16. 16.True or false: soap solution turns turmeric reddish-brown. (a) False (b) True
  17. 17.🧺 Which of these is needed for the turmeric test? (a) yeast (b) a mirror (c) a dropper or spoon (d) a comb
  18. 18.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the liquid we test is kept the same. (a) False (b) True
  19. 19.🫧 Which of these is neutral? (a) plain water (b) lemon juice (c) curd (d) detergent water
  20. 20.🛟 Which rule keeps the turmeric test safe? (a) sniff each bottle hard (b) sip each liquid (c) use only kitchen items (d) mix bathroom cleaners
  21. 21.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a dropper or spoon (b) lemon juice (c) turmeric powder (d) a mirror
  22. 22.🫧 Which of these is a base? (a) baking soda water (b) salt water (c) plain water (d) sugar water
  23. 23.🫧 Which of these is an acid? (a) curd (b) sugar water (c) salt water (d) soap solution
  24. 24.True or false: a balloon is not needed for the turmeric test. (a) True (b) False
  25. 25.🧺 Which of these is not needed for the turmeric test? (a) lemon juice (b) turmeric powder (c) a mirror (d) white paper strips
  26. 26.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) yeast (b) soap solution (c) water (d) lemon juice
  27. 27.🫧 Is curd an acid, a base or neutral? (a) a base (b) an acid (c) neutral
  28. 28.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) turmeric powder (b) a comb (c) soap solution (d) lemon juice
  29. 29.🧺 Do we need water for the turmeric test? (a) not needed (b) needed
  30. 30.True or false: detergent water turns turmeric reddish-brown. (a) False (b) True
  31. 31.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the turmeric paper”? (a) we measure it (b) we change it (c) we keep it the same
  32. 32.🫧 Which of these is an acid? (a) sugar water (b) vinegar (c) plain water (d) baking soda water
  33. 33.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the light we look in is the one thing we change. (a) False (b) True
  34. 34.True or false: tamarind water turns turmeric reddish-brown. (a) False (b) True
  35. 35.🫧 Is lemon juice an acid, a base or neutral? (a) a base (b) an acid (c) neutral
  36. 36.True or false: turmeric powder is not needed for the turmeric test. (a) False (b) True
  37. 37.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the number of drops”? (a) we change it (b) we keep it the same (c) we measure it
  38. 38.🔍 Which is the odd one out? (a) soap solution (b) detergent water (c) salt water (d) baking soda water
  39. 39.🫧 Is soap solution an acid, a base or neutral? (a) a base (b) neutral (c) an acid
  40. 40.True or false: soap solution is not needed for the turmeric test. (a) True (b) False

Answer key

  1. sugar water
  2. a magnet
  3. a comb
  4. reddish-brown
  5. False
  6. baking soda water
  7. a battery cell
  8. True
  9. we change it
  10. False
  11. baking soda water
  12. neutral
  13. False
  14. an old shirt or apron
  15. False
  16. True
  17. a dropper or spoon
  18. False
  19. plain water
  20. use only kitchen items
  21. a mirror
  22. baking soda water
  23. curd
  24. True
  25. a mirror
  26. yeast
  27. an acid
  28. a comb
  29. needed
  30. True
  31. we keep it the same
  32. vinegar
  33. False
  34. False
  35. an acid
  36. False
  37. we keep it the same
  38. salt water
  39. a base
  40. False

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