Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 305 · 40 questions

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.

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

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