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

Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 868 · 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.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) water (b) turmeric powder (c) a battery cell (d) lemon juice
  2. 2.True or false: baking soda water is an acid. (a) False (b) True
  3. 3.🔍 Which is the odd one out? (a) lemon juice (b) detergent water (c) vinegar (d) plain water
  4. 4.🔮 Predict: turmeric paper is dipped in salt water. What happens? (a) it stays yellow (b) it turns black (c) it turns blue (d) it turns red
  5. 5.🔍 Which is the odd one out? (a) salt water (b) tamarind water (c) lemon juice (d) baking soda water
  6. 6.True or false: curd is neutral. (a) True (b) False
  7. 7.🟡 Which of these turns turmeric reddish-brown? (a) salt water (b) tamarind water (c) sugar water (d) baking soda water
  8. 8.📘 What do we call something that changes colour to show an acid or a base? (a) a magnet (b) an indicator (c) a pulley (d) a prism
  9. 9.🧺 Do we need a battery cell for the turmeric test? (a) needed (b) not needed
  10. 10.⚖️ 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
  11. 11.True or false: vinegar is neutral. (a) False (b) True
  12. 12.🫧 Which of these is a base? (a) soap solution (b) salt water (c) vinegar (d) lemon juice
  13. 13.🫧 Which of these is an acid? (a) soap solution (b) baking soda water (c) plain water (d) tamarind water
  14. 14.🔍 Which is the odd one out? (a) vinegar (b) baking soda water (c) soap solution (d) detergent water
  15. 15.🟡 Turmeric paper meets sugar water. What happens? (a) turns reddish-brown (b) stays yellow
  16. 16.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) turmeric powder (b) a mirror (c) lemon juice (d) soap solution
  17. 17.🧺 Which of these is not needed for the turmeric test? (a) soap solution (b) a mirror (c) lemon juice (d) turmeric powder
  18. 18.True or false: lemon juice keeps turmeric yellow. (a) False (b) True
  19. 19.🧺 Do we need soap solution for the turmeric test? (a) needed (b) not needed
  20. 20.True or false: a comb is needed for the turmeric test. (a) False (b) True
  21. 21.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) lemon juice (b) soap solution (c) water (d) a balloon
  22. 22.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the colour we see is kept the same. (a) False (b) True
  23. 23.⚖️ 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 colour we see (c) the light we look in (d) the number of drops
  24. 24.🫧 Which of these is neutral? (a) detergent water (b) plain water (c) soap solution (d) vinegar
  25. 25.🛟 Turmeric stains clothes. What should you wear? (a) your school uniform (b) your best clothes (c) a white party dress (d) an old shirt or apron
  26. 26.🛟 Which rule keeps the turmeric test safe? (a) mix bathroom cleaners (b) use only kitchen items (c) sip each liquid (d) sniff each bottle hard
  27. 27.🟡 Which of these turns turmeric reddish-brown? (a) sugar water (b) plain water (c) salt water (d) soap solution
  28. 28.🧺 Do we need a magnet for the turmeric test? (a) needed (b) not needed
  29. 29.🫧 Is orange juice an acid, a base or neutral? (a) a base (b) an acid (c) neutral
  30. 30.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the number of drops”? (a) we keep it the same (b) we change it (c) we measure it
  31. 31.True or false: a balloon is not needed for the turmeric test. (a) False (b) True
  32. 32.🟡 Which of these turns turmeric paper reddish-brown? (a) soap solution (b) vinegar (c) sugar water (d) lemon juice
  33. 33.True or false: yeast is not needed for the turmeric test. (a) False (b) True
  34. 34.True or false: detergent water is an acid. (a) True (b) False
  35. 35.🫧 Which of these is a base? (a) baking soda water (b) salt water (c) vinegar (d) tamarind water
  36. 36.🧺 Do we need a comb for the turmeric test? (a) not needed (b) needed
  37. 37.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) white paper strips (b) a magnet (c) water (d) turmeric powder
  38. 38.⚖️ 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
  39. 39.True or false: water is not needed for the turmeric test. (a) True (b) False
  40. 40.True or false: lemon juice turns turmeric reddish-brown. (a) False (b) True

Answer key

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

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