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

Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 321 · 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: curd is an acid. (a) False (b) True
  2. 2.🧺 Do we need lemon juice for the turmeric test? (a) needed (b) not needed
  3. 3.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the colour we see is what we measure. (a) True (b) False
  4. 4.True or false: baking soda water is neutral. (a) False (b) True
  5. 5.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the liquid we test (b) the number of drops (c) the turmeric paper (d) the colour we see
  6. 6.True or false: salt water turns turmeric reddish-brown. (a) True (b) False
  7. 7.🛟 Turmeric stains clothes. What should you wear? (a) a white party dress (b) your school uniform (c) an old shirt or apron (d) your best clothes
  8. 8.🔍 Which is the odd one out? (a) detergent water (b) soap solution (c) sugar water (d) baking soda water
  9. 9.🛟 Which rule keeps the turmeric test safe? (a) sniff each bottle hard (b) sip each liquid (c) mix bathroom cleaners (d) use only kitchen items
  10. 10.🟡 Which of these keeps turmeric yellow? (a) baking soda water (b) vinegar (c) soap solution (d) detergent water
  11. 11.🧺 Which of these is not needed for the turmeric test? (a) a battery cell (b) lemon juice (c) a dropper or spoon (d) water
  12. 12.🟡 Which of these turns turmeric reddish-brown? (a) sugar water (b) lemon juice (c) baking soda water (d) salt water
  13. 13.True or false: a dropper or spoon is needed for the turmeric test. (a) True (b) False
  14. 14.⚖️ 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 light we look in
  15. 15.⚖️ 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
  16. 16.True or false: soap solution is a base. (a) False (b) True
  17. 17.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is the one thing we change? (a) the number of drops (b) the liquid we test (c) the light we look in (d) the colour we see
  18. 18.True or false: salt water keeps turmeric yellow. (a) False (b) True
  19. 19.🧺 Do we need a dropper or spoon for the turmeric test? (a) not needed (b) needed
  20. 20.🔍 Which is the odd one out? (a) baking soda water (b) lemon juice (c) detergent water (d) soap solution
  21. 21.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the colour we see”? (a) we measure it (b) we keep it the same (c) we change it
  22. 22.True or false: water is not needed for the turmeric test. (a) True (b) False
  23. 23.True or false: white paper strips is not needed for the turmeric test. (a) False (b) True
  24. 24.True or false: detergent water is a base. (a) False (b) True
  25. 25.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a balloon (b) water (c) lemon juice (d) turmeric powder
  26. 26.🧺 Which of these is needed for the turmeric test? (a) a balloon (b) a comb (c) turmeric powder (d) a magnet
  27. 27.🫧 Is sugar water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
  28. 28.⚖️ 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
  29. 29.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the colour we see (b) the turmeric paper (c) the liquid we test
  30. 30.🟡 Turmeric paper meets plain water. What happens? (a) turns reddish-brown (b) stays yellow
  31. 31.🔍 Which is the odd one out? (a) detergent water (b) plain water (c) sugar water (d) vinegar
  32. 32.True or false: sugar water is an acid. (a) True (b) False
  33. 33.True or false: a magnet is needed for the turmeric test. (a) False (b) True
  34. 34.🧺 Which of these is not needed for the turmeric test? (a) soap solution (b) white paper strips (c) a dropper or spoon (d) a magnet
  35. 35.🫧 Is soap solution an acid, a base or neutral? (a) neutral (b) an acid (c) a base
  36. 36.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the number of drops is what we measure. (a) False (b) True
  37. 37.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the light we look in is what we measure. (a) True (b) False
  38. 38.🧺 Which of these is needed for the turmeric test? (a) a balloon (b) yeast (c) a mirror (d) soap solution
  39. 39.🫧 Is vinegar an acid, a base or neutral? (a) neutral (b) an acid (c) a base
  40. 40.True or false: tamarind water is an acid. (a) False (b) True

Answer key

  1. True
  2. needed
  3. True
  4. False
  5. the colour we see
  6. False
  7. an old shirt or apron
  8. sugar water
  9. use only kitchen items
  10. vinegar
  11. a battery cell
  12. baking soda water
  13. True
  14. the light we look in
  15. we keep it the same
  16. True
  17. the liquid we test
  18. True
  19. needed
  20. lemon juice
  21. we measure it
  22. False
  23. False
  24. True
  25. a balloon
  26. turmeric powder
  27. neutral
  28. we change it
  29. the turmeric paper
  30. stays yellow
  31. detergent water
  32. False
  33. False
  34. a magnet
  35. a base
  36. False
  37. False
  38. soap solution
  39. an acid
  40. True

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