Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 506 · 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) use only kitchen items (b) sip each liquid (c) mix bathroom cleaners (d) sniff each bottle hard
2. 2.🫧 Which of these is a base? (a) soap solution (b) orange juice (c) plain water (d) lemon juice
3. 3.🟡 Turmeric paper meets tamarind water. What happens? (a) stays yellow (b) turns reddish-brown
4. 4.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the number of drops is the one thing we change. (a) False (b) True
5. 5.⚖️ 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
6. 6.🔍 Which is the odd one out? (a) detergent water (b) soap solution (c) baking soda water (d) lemon juice
7. 7.True or false: a comb is not needed for the turmeric test. (a) True (b) False
8. 8.🧺 Do we need lemon juice for the turmeric test? (a) needed (b) not needed
9. 9.🧺 Which of these is needed for the turmeric test? (a) turmeric powder (b) a balloon (c) a mirror (d) yeast
10. 10.🧺 Do we need a dropper or spoon for the turmeric test? (a) not needed (b) needed
11. 11.⚖️ 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
12. 12.🍋 A drop of lemon juice falls on turmeric paper. What happens? (a) it turns blue (b) it stays yellow (c) it turns red (d) it turns black
13. 13.🫧 Which of these is a base? (a) baking soda water (b) orange juice (c) plain water (d) sugar water
14. 14.🫧 Is detergent water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
15. 15.True or false: soap solution is needed for the turmeric test. (a) False (b) True
16. 16.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) it turns blue (b) it turns green (c) reddish-brown (d) it stays yellow
17. 17.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the light we look in is kept the same. (a) True (b) False
18. 18.🔮 Predict: turmeric paper is dipped in salt water. What happens? (a) it turns red (b) it turns blue (c) it turns black (d) it stays yellow
19. 19.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the colour we see”? (a) we measure it (b) we change it (c) we keep it the same
20. 20.🟡 Turmeric paper meets salt water. What happens? (a) turns reddish-brown (b) stays yellow
21. 21.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) soap solution (b) water (c) a balloon (d) lemon juice
22. 22.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) water (b) white paper strips (c) yeast (d) a dropper or spoon
23. 23.🟡 Which of these turns turmeric reddish-brown? (a) baking soda water (b) plain water (c) lemon juice (d) salt water
24. 24.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the number of drops (b) the colour we see (c) the liquid we test
25. 25.True or false: baking soda water keeps turmeric yellow. (a) True (b) False
26. 26.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the turmeric paper is kept the same. (a) True (b) False
27. 27.🧺 Which of these is needed for the turmeric test? (a) white paper strips (b) a balloon (c) a comb (d) a mirror
28. 28.🧺 Do we need a magnet for the turmeric test? (a) not needed (b) needed
29. 29.🧺 Do we need a balloon for the turmeric test? (a) needed (b) not needed
30. 30.True or false: lemon juice turns turmeric reddish-brown. (a) False (b) True
31. 31.🟡 Turmeric paper meets detergent water. What happens? (a) stays yellow (b) turns reddish-brown
32. 32.🟡 Which of these turns turmeric reddish-brown? (a) soap solution (b) salt water (c) sugar water (d) vinegar
33. 33.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a comb (b) turmeric powder (c) a dropper or spoon (d) water
34. 34.🔍 Which is the odd one out? (a) detergent water (b) salt water (c) vinegar (d) plain water
35. 35.🧺 Which of these is needed for the turmeric test? (a) a mirror (b) a dropper or spoon (c) a comb (d) a magnet
36. 36.⚖️ 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 light we look in
37. 37.🔍 Which is the odd one out? (a) baking soda water (b) tamarind water (c) soap solution (d) detergent water
38. 38.🫧 Which of these is an acid? (a) salt water (b) lemon juice (c) plain water (d) soap solution
39. 39.🧺 Which of these is not needed for the turmeric test? (a) yeast (b) turmeric powder (c) soap solution (d) water
40. 40.🫧 Is plain water an acid, a base or neutral? (a) an acid (b) a base (c) neutral

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