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

Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 963 · 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.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the turmeric paper is what we measure. (a) True (b) False
  2. 2.🫧 Which of these is neutral? (a) sugar water (b) orange juice (c) lemon juice (d) tamarind water
  3. 3.True or false: detergent water keeps turmeric yellow. (a) False (b) True
  4. 4.⚖️ 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
  5. 5.📘 What do we call something that changes colour to show an acid or a base? (a) a pulley (b) a prism (c) an indicator (d) a magnet
  6. 6.🧺 Do we need soap solution for the turmeric test? (a) needed (b) not needed
  7. 7.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the liquid we test (b) the colour we see (c) the number of drops (d) the turmeric paper
  8. 8.True or false: lemon juice is an acid. (a) False (b) True
  9. 9.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) turmeric powder (b) a dropper or spoon (c) soap solution (d) a battery cell
  10. 10.🟡 Which of these turns turmeric reddish-brown? (a) lemon juice (b) vinegar (c) soap solution (d) salt water
  11. 11.True or false: a mirror is needed for the turmeric test. (a) True (b) False
  12. 12.⚖️ 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
  13. 13.🟡 Turmeric paper meets plain water. What happens? (a) turns reddish-brown (b) stays yellow
  14. 14.🧺 Which of these is not needed for the turmeric test? (a) soap solution (b) lemon juice (c) a comb (d) white paper strips
  15. 15.True or false: orange juice is a base. (a) True (b) False
  16. 16.🛟 Which rule keeps the turmeric test safe? (a) use only kitchen items (b) sip each liquid (c) sniff each bottle hard (d) mix bathroom cleaners
  17. 17.True or false: a balloon is not needed for the turmeric test. (a) False (b) True
  18. 18.🧺 Do we need white paper strips for the turmeric test? (a) needed (b) not needed
  19. 19.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a comb (b) soap solution (c) lemon juice (d) a dropper or spoon
  20. 20.True or false: sugar water is neutral. (a) True (b) False
  21. 21.🟡 Turmeric paper meets baking soda water. What happens? (a) turns reddish-brown (b) stays yellow
  22. 22.🫧 Which of these is an acid? (a) vinegar (b) soap solution (c) baking soda water (d) detergent water
  23. 23.🔍 Which is the odd one out? (a) detergent water (b) soap solution (c) vinegar (d) baking soda water
  24. 24.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) turmeric powder (b) water (c) white paper strips (d) a magnet
  25. 25.🟡 Which of these keeps turmeric yellow? (a) plain water (b) soap solution (c) baking soda water (d) detergent water
  26. 26.True or false: white paper strips is not needed for the turmeric test. (a) True (b) False
  27. 27.⚖️ 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
  28. 28.True or false: detergent water is neutral. (a) True (b) False
  29. 29.🟡 Turmeric paper meets vinegar. What happens? (a) stays yellow (b) turns reddish-brown
  30. 30.True or false: vinegar is an acid. (a) True (b) False
  31. 31.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the liquid we test is the one thing we change. (a) False (b) True
  32. 32.True or false: salt water turns turmeric reddish-brown. (a) False (b) True
  33. 33.🟡 Turmeric paper meets salt water. What happens? (a) stays yellow (b) turns reddish-brown
  34. 34.True or false: water is not needed for the turmeric test. (a) True (b) False
  35. 35.True or false: soap solution turns turmeric reddish-brown. (a) False (b) True
  36. 36.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the number of drops is kept the same. (a) False (b) True
  37. 37.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is the one thing we change? (a) the turmeric paper (b) the liquid we test (c) the number of drops (d) the colour we see
  38. 38.True or false: vinegar turns turmeric reddish-brown. (a) False (b) True
  39. 39.🟡 Turmeric paper meets soap solution. What happens? (a) turns reddish-brown (b) stays yellow
  40. 40.🧺 Do we need a comb for the turmeric test? (a) not needed (b) needed

Answer key

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

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