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

Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 240 · 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: white paper strips is not needed for the turmeric test. (a) False (b) True
  2. 2.🫧 Is salt water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
  3. 3.🔍 Which is the odd one out? (a) soap solution (b) sugar water (c) lemon juice (d) salt water
  4. 4.🛟 Turmeric stains clothes. What should you wear? (a) your school uniform (b) your best clothes (c) an old shirt or apron (d) a white party dress
  5. 5.🫧 Is tamarind water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
  6. 6.🔮 Predict: a yellow curry stain on a shirt is washed with soap. What colour may it turn? (a) white at once (b) reddish (c) bright blue (d) green
  7. 7.🫧 Is curd an acid, a base or neutral? (a) neutral (b) a base (c) an acid
  8. 8.🔍 Which is the odd one out? (a) baking soda water (b) plain water (c) soap solution (d) detergent water
  9. 9.🔍 Which is the odd one out? (a) salt water (b) soap solution (c) baking soda water (d) detergent water
  10. 10.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the liquid we test (b) the light we look in (c) the colour we see
  11. 11.🧺 Do we need a magnet for the turmeric test? (a) needed (b) not needed
  12. 12.🔍 Which is the odd one out? (a) soap solution (b) sugar water (c) detergent water (d) baking soda water
  13. 13.🟡 Turmeric paper meets salt water. What happens? (a) stays yellow (b) turns reddish-brown
  14. 14.🟡 Which of these keeps turmeric yellow? (a) baking soda water (b) detergent water (c) soap solution (d) tamarind water
  15. 15.True or false: sugar water turns turmeric reddish-brown. (a) True (b) False
  16. 16.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a battery cell (b) soap solution (c) water (d) turmeric powder
  17. 17.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) water (b) turmeric powder (c) lemon juice (d) a mirror
  18. 18.🟡 Which of these turns turmeric reddish-brown? (a) detergent water (b) vinegar (c) salt water (d) tamarind water
  19. 19.🫧 Is vinegar an acid, a base or neutral? (a) a base (b) neutral (c) an acid
  20. 20.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the light we look in (b) the liquid we test (c) the turmeric paper (d) the colour we see
  21. 21.🧺 Do we need white paper strips for the turmeric test? (a) not needed (b) needed
  22. 22.True or false: soap solution is an acid. (a) True (b) False
  23. 23.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the turmeric paper (b) the liquid we test (c) the colour we see
  24. 24.True or false: a magnet is not needed for the turmeric test. (a) False (b) True
  25. 25.⚖️ 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
  26. 26.⚖️ 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
  27. 27.🫧 Is baking soda water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
  28. 28.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the colour we see”? (a) we keep it the same (b) we change it (c) we measure it
  29. 29.🔮 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
  30. 30.🫧 Is detergent water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
  31. 31.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the number of drops is kept the same. (a) True (b) False
  32. 32.🫧 Which of these is neutral? (a) detergent water (b) plain water (c) lemon juice (d) curd
  33. 33.🟡 Turmeric paper meets vinegar. What happens? (a) stays yellow (b) turns reddish-brown
  34. 34.🛟 Which rule keeps the turmeric test safe? (a) sip each liquid (b) mix bathroom cleaners (c) sniff each bottle hard (d) use only kitchen items
  35. 35.True or false: water is needed for the turmeric test. (a) False (b) True
  36. 36.True or false: soap solution is not needed for the turmeric test. (a) False (b) True
  37. 37.🧺 Which of these is not needed for the turmeric test? (a) lemon juice (b) turmeric powder (c) water (d) a magnet
  38. 38.🧺 Which of these is not needed for the turmeric test? (a) a dropper or spoon (b) water (c) turmeric powder (d) a balloon
  39. 39.True or false: sugar water is neutral. (a) False (b) True
  40. 40.🔍 Which is the odd one out? (a) vinegar (b) tamarind water (c) lemon juice (d) detergent water

Answer key

  1. False
  2. neutral
  3. soap solution
  4. an old shirt or apron
  5. an acid
  6. reddish
  7. an acid
  8. plain water
  9. salt water
  10. the light we look in
  11. not needed
  12. sugar water
  13. stays yellow
  14. tamarind water
  15. False
  16. a battery cell
  17. a mirror
  18. detergent water
  19. an acid
  20. the colour we see
  21. needed
  22. False
  23. the turmeric paper
  24. True
  25. we keep it the same
  26. False
  27. a base
  28. we measure it
  29. reddish-brown
  30. a base
  31. True
  32. plain water
  33. stays yellow
  34. use only kitchen items
  35. True
  36. False
  37. a magnet
  38. a balloon
  39. True
  40. detergent water

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