Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 418 · 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.True or false: tamarind water turns turmeric reddish-brown. (a) True (b) False
2. 2.True or false: a mirror is not needed for the turmeric test. (a) True (b) False
3. 3.⚖️ 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
4. 4.🧺 Do we need yeast for the turmeric test? (a) needed (b) not needed
5. 5.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) white paper strips (b) water (c) lemon juice (d) a balloon
6. 6.🫧 Which of these is a base? (a) orange juice (b) lemon juice (c) plain water (d) detergent water
7. 7.🛟 Which rule keeps the turmeric test safe? (a) mix bathroom cleaners (b) sniff each bottle hard (c) sip each liquid (d) use only kitchen items
8. 8.True or false: soap solution is not needed for the turmeric test. (a) True (b) False
9. 9.⚖️ 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
10. 10.🔮 Predict: a yellow curry stain on a shirt is washed with soap. What colour may it turn? (a) bright blue (b) green (c) reddish (d) white at once
11. 11.🧺 Which of these is needed for the turmeric test? (a) a balloon (b) a magnet (c) lemon juice (d) a comb
12. 12.🍋 A drop of lemon juice falls on turmeric paper. What happens? (a) it stays yellow (b) it turns blue (c) it turns black (d) it turns red
13. 13.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a magnet (b) white paper strips (c) a dropper or spoon (d) soap solution
14. 14.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the liquid we test”? (a) we measure it (b) we change it (c) we keep it the same
15. 15.🫧 Is baking soda water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
16. 16.True or false: yeast is not needed for the turmeric test. (a) True (b) False
17. 17.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) water (b) white paper strips (c) a battery cell (d) soap solution
18. 18.🛟 Turmeric stains clothes. What should you wear? (a) an old shirt or apron (b) your best clothes (c) your school uniform (d) a white party dress
19. 19.🟡 Turmeric paper meets lemon juice. What happens? (a) turns reddish-brown (b) stays yellow
20. 20.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the liquid we test is the one thing we change. (a) True (b) False
21. 21.🔍 Which is the odd one out? (a) detergent water (b) vinegar (c) lemon juice (d) tamarind water
22. 22.🧺 Which of these is not needed for the turmeric test? (a) lemon juice (b) yeast (c) turmeric powder (d) water
23. 23.🟡 Turmeric paper meets detergent water. What happens? (a) stays yellow (b) turns reddish-brown
24. 24.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the turmeric paper”? (a) we measure it (b) we keep it the same (c) we change it
25. 25.🧺 Do we need water for the turmeric test? (a) needed (b) not needed
26. 26.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is the one thing we change? (a) the light we look in (b) the liquid we test (c) the turmeric paper (d) the number of drops
27. 27.🟡 Which of these turns turmeric paper reddish-brown? (a) vinegar (b) lemon juice (c) soap solution (d) sugar water
28. 28.🧺 Do we need a dropper or spoon for the turmeric test? (a) not needed (b) needed
29. 29.🫧 Is vinegar an acid, a base or neutral? (a) a base (b) neutral (c) an acid
30. 30.🫧 Is plain water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
31. 31.True or false: detergent water keeps turmeric yellow. (a) True (b) False
32. 32.🧺 Do we need turmeric powder for the turmeric test? (a) needed (b) not needed
33. 33.🟡 Turmeric paper is dipped in soap solution. What colour does it turn? (a) bright blue (b) reddish-brown (c) it stays white (d) green
34. 34.🟡 Turmeric paper meets soap solution. What happens? (a) turns reddish-brown (b) stays yellow
35. 35.🫧 Which of these is an acid? (a) detergent water (b) baking soda water (c) tamarind water (d) plain water
36. 36.🫧 Which of these is a base? (a) sugar water (b) lemon juice (c) soap solution (d) curd
37. 37.🔍 Which is the odd one out? (a) baking soda water (b) soap solution (c) tamarind water (d) detergent water
38. 38.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the liquid we test is what we measure. (a) False (b) True
39. 39.🟡 Turmeric paper meets plain water. What happens? (a) turns reddish-brown (b) stays yellow
40. 40.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) it turns green (b) it turns blue (c) reddish-brown (d) it stays yellow

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