Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 649 · 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.🔮 Predict: turmeric paper is dipped in salt water. What happens? (a) it turns red (b) it turns black (c) it stays yellow (d) it turns blue
2. 2.🫧 Is tamarind water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
3. 3.True or false: white paper strips is not needed for the turmeric test. (a) True (b) False
4. 4.🛟 Which rule keeps the turmeric test safe? (a) sniff each bottle hard (b) use only kitchen items (c) sip each liquid (d) mix bathroom cleaners
5. 5.🧺 Do we need turmeric powder for the turmeric test? (a) not needed (b) needed
6. 6.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the colour we see”? (a) we change it (b) we measure it (c) we keep it the same
7. 7.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) lemon juice (b) yeast (c) turmeric powder (d) water
8. 8.True or false: lemon juice is needed for the turmeric test. (a) False (b) True
9. 9.🟡 Turmeric paper is dipped in soap solution. What colour does it turn? (a) it stays white (b) reddish-brown (c) bright blue (d) green
10. 10.🟡 Turmeric paper meets plain water. What happens? (a) turns reddish-brown (b) stays yellow
11. 11.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the liquid we test is kept the same. (a) False (b) True
12. 12.⚖️ 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
13. 13.🟡 Which of these turns turmeric reddish-brown? (a) salt water (b) soap solution (c) sugar water (d) plain water
14. 14.True or false: yeast is needed for the turmeric test. (a) True (b) False
15. 15.🔍 Which is the odd one out? (a) baking soda water (b) lemon juice (c) salt water (d) plain water
16. 16.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the light we look in”? (a) we keep it the same (b) we measure it (c) we change it
17. 17.True or false: sugar water is neutral. (a) True (b) False
18. 18.🫧 Which of these is neutral? (a) plain water (b) soap solution (c) baking soda water (d) vinegar
19. 19.🫧 Is sugar water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
20. 20.🍋 A drop of lemon juice falls on turmeric paper. What happens? (a) it turns red (b) it turns blue (c) it turns black (d) it stays yellow
21. 21.True or false: baking soda water turns turmeric reddish-brown. (a) False (b) True
22. 22.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) white paper strips (b) water (c) a magnet (d) turmeric powder
23. 23.🫧 Is orange juice an acid, a base or neutral? (a) neutral (b) a base (c) an acid
24. 24.🔍 Which is the odd one out? (a) baking soda water (b) detergent water (c) soap solution (d) plain water
25. 25.True or false: a magnet is needed for the turmeric test. (a) True (b) False
26. 26.⚖️ 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 turmeric paper (c) the colour we see (d) the number of drops
27. 27.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the light we look in (b) the number of drops (c) the turmeric paper (d) the colour we see
28. 28.🧺 Do we need lemon juice for the turmeric test? (a) needed (b) not needed
29. 29.True or false: water is not needed for the turmeric test. (a) False (b) True
30. 30.🧺 Do we need soap solution for the turmeric test? (a) not needed (b) needed
31. 31.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the colour we see is the one thing we change. (a) False (b) True
32. 32.🔮 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
33. 33.🟡 Which of these turns turmeric reddish-brown? (a) salt water (b) sugar water (c) detergent water (d) plain water
34. 34.True or false: sugar water turns turmeric reddish-brown. (a) False (b) True
35. 35.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) soap solution (b) white paper strips (c) a mirror (d) a dropper or spoon
36. 36.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the turmeric paper (b) the colour we see (c) the liquid we test
37. 37.🟡 Which of these keeps turmeric yellow? (a) salt water (b) baking soda water (c) detergent water (d) soap solution
38. 38.🟡 Turmeric paper meets tamarind water. What happens? (a) stays yellow (b) turns reddish-brown
39. 39.True or false: plain water is neutral. (a) False (b) True
40. 40.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the number of drops”? (a) we change it (b) we measure it (c) we keep it the same

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