Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 681 · 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 of these is not needed for the turmeric test? (a) lemon juice (b) a battery cell (c) soap solution (d) a dropper or spoon
2. 2.🟡 Turmeric paper meets lemon juice. What happens? (a) turns reddish-brown (b) stays yellow
3. 3.True or false: turmeric powder is not needed for the turmeric test. (a) True (b) False
4. 4.🔮 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
5. 5.🟡 Which of these keeps turmeric yellow? (a) sugar water (b) soap solution (c) baking soda water (d) detergent water
6. 6.True or false: lemon juice is an acid. (a) True (b) False
7. 7.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a dropper or spoon (b) a mirror (c) water (d) lemon juice
8. 8.⚖️ 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 number of drops (d) the turmeric paper
9. 9.True or false: vinegar keeps turmeric yellow. (a) False (b) True
10. 10.🧺 Which of these is not needed for the turmeric test? (a) a dropper or spoon (b) a magnet (c) white paper strips (d) turmeric powder
11. 11.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the number of drops is kept the same. (a) True (b) False
12. 12.🫧 Is orange juice an acid, a base or neutral? (a) an acid (b) neutral (c) a base
13. 13.True or false: plain water keeps turmeric yellow. (a) False (b) True
14. 14.🟡 Which of these keeps turmeric yellow? (a) detergent water (b) vinegar (c) baking soda water (d) soap solution
15. 15.🔍 Which is the odd one out? (a) lemon juice (b) vinegar (c) soap solution (d) plain water
16. 16.⚖️ 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
17. 17.🟡 Turmeric paper meets tamarind water. What happens? (a) turns reddish-brown (b) stays yellow
18. 18.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) yeast (b) turmeric powder (c) soap solution (d) a dropper or spoon
19. 19.⚖️ 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
20. 20.🫧 Which of these is a base? (a) lemon juice (b) tamarind water (c) detergent water (d) curd
21. 21.🫧 Is soap solution an acid, a base or neutral? (a) neutral (b) a base (c) an acid
22. 22.🛟 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
23. 23.⚖️ 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
24. 24.🛟 Turmeric stains clothes. What should you wear? (a) your best clothes (b) an old shirt or apron (c) a white party dress (d) your school uniform
25. 25.True or false: white paper strips is not needed for the turmeric test. (a) False (b) True
26. 26.🧺 Which of these is needed for the turmeric test? (a) a balloon (b) a magnet (c) water (d) a mirror
27. 27.True or false: plain water is neutral. (a) True (b) False
28. 28.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the light we look in (b) the liquid we test (c) the colour we see
29. 29.🧺 Do we need a mirror for the turmeric test? (a) not needed (b) needed
30. 30.🧺 Which of these is not needed for the turmeric test? (a) soap solution (b) a dropper or spoon (c) a mirror (d) water
31. 31.🫧 Which of these is neutral? (a) orange juice (b) plain water (c) curd (d) soap solution
32. 32.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the light we look in is the one thing we change. (a) False (b) True
33. 33.🫧 Is curd an acid, a base or neutral? (a) neutral (b) a base (c) an acid
34. 34.🟡 Turmeric paper meets baking soda water. What happens? (a) stays yellow (b) turns reddish-brown
35. 35.True or false: a dropper or spoon is needed for the turmeric test. (a) False (b) True
36. 36.True or false: tamarind water is an acid. (a) False (b) True
37. 37.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the turmeric paper is what we measure. (a) True (b) False
38. 38.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) lemon juice (b) white paper strips (c) water (d) a balloon
39. 39.🟡 Turmeric paper meets salt water. What happens? (a) stays yellow (b) turns reddish-brown
40. 40.🧺 Which of these is not needed for the turmeric test? (a) a comb (b) white paper strips (c) a dropper or spoon (d) lemon juice

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