Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 720 · 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.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) white paper strips (b) a mirror (c) turmeric powder (d) lemon juice
2. 2.🧺 Which of these is needed for the turmeric test? (a) a balloon (b) a magnet (c) soap solution (d) a battery cell
3. 3.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) it turns blue (b) reddish-brown (c) it turns green (d) it stays yellow
4. 4.🧺 Do we need a magnet for the turmeric test? (a) not needed (b) needed
5. 5.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the colour we see (b) the liquid we test (c) the turmeric paper
6. 6.True or false: white paper strips is not needed for the turmeric test. (a) False (b) True
7. 7.🧺 Which of these is not needed for the turmeric test? (a) white paper strips (b) turmeric powder (c) a comb (d) water
8. 8.True or false: a mirror is needed for the turmeric test. (a) True (b) False
9. 9.True or false: water is needed for the turmeric test. (a) False (b) True
10. 10.🫧 Which of these is an acid? (a) curd (b) detergent water (c) plain water (d) soap solution
11. 11.🧺 Which of these is needed for the turmeric test? (a) turmeric powder (b) yeast (c) a comb (d) a mirror
12. 12.🔍 Which is the odd one out? (a) tamarind water (b) plain water (c) detergent water (d) lemon juice
13. 13.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the turmeric paper”? (a) we keep it the same (b) we change it (c) we measure it
14. 14.🧺 Do we need turmeric powder for the turmeric test? (a) not needed (b) needed
15. 15.🫧 Is orange juice an acid, a base or neutral? (a) a base (b) neutral (c) an acid
16. 16.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the liquid we test”? (a) we keep it the same (b) we measure it (c) we change it
17. 17.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) soap solution (b) a comb (c) white paper strips (d) a dropper or spoon
18. 18.🧺 Do we need a dropper or spoon for the turmeric test? (a) not needed (b) needed
19. 19.🔍 Which is the odd one out? (a) lemon juice (b) baking soda water (c) vinegar (d) sugar water
20. 20.🟡 Which of these turns turmeric paper reddish-brown? (a) lemon juice (b) soap solution (c) vinegar (d) sugar water
21. 21.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the colour we see (b) the light we look in (c) the turmeric paper (d) the liquid we test
22. 22.🛟 Which rule keeps the turmeric test safe? (a) mix bathroom cleaners (b) sniff each bottle hard (c) use only kitchen items (d) sip each liquid
23. 23.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the number of drops (b) the liquid we test (c) the colour we see
24. 24.🍋 A drop of lemon juice falls on turmeric paper. What happens? (a) it turns red (b) it stays yellow (c) it turns black (d) it turns blue
25. 25.True or false: orange juice is neutral. (a) False (b) True
26. 26.🔍 Which is the odd one out? (a) plain water (b) soap solution (c) baking soda water (d) detergent water
27. 27.🧺 Do we need a battery cell for the turmeric test? (a) needed (b) not needed
28. 28.🫧 Is vinegar an acid, a base or neutral? (a) an acid (b) neutral (c) a base
29. 29.🧺 Do we need a balloon for the turmeric test? (a) needed (b) not needed
30. 30.🧺 Which of these is not needed for the turmeric test? (a) lemon juice (b) white paper strips (c) yeast (d) a dropper or spoon
31. 31.🟡 Turmeric paper meets sugar water. What happens? (a) turns reddish-brown (b) stays yellow
32. 32.🟡 Which of these keeps turmeric yellow? (a) salt water (b) soap solution (c) baking soda water (d) detergent water
33. 33.True or false: detergent water is a base. (a) False (b) True
34. 34.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) soap solution (b) a dropper or spoon (c) water (d) a magnet
35. 35.🔍 Which is the odd one out? (a) sugar water (b) soap solution (c) plain water (d) lemon juice
36. 36.🫧 Is plain water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
37. 37.True or false: a dropper or spoon is not needed for the turmeric test. (a) True (b) False
38. 38.⚖️ 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 number of drops (c) the light we look in (d) the turmeric paper
39. 39.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the light we look in is kept the same. (a) False (b) True
40. 40.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the number of drops is kept the same. (a) True (b) False

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