Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 853 · 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.🟡 Turmeric paper meets salt water. What happens? (a) turns reddish-brown (b) stays yellow
2. 2.🟡 Which of these turns turmeric paper reddish-brown? (a) sugar water (b) soap solution (c) lemon juice (d) vinegar
3. 3.⚖️ 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
4. 4.🫧 Which of these is an acid? (a) baking soda water (b) lemon juice (c) detergent water (d) salt water
5. 5.🟡 Turmeric paper is dipped in soap solution. What colour does it turn? (a) reddish-brown (b) green (c) it stays white (d) bright blue
6. 6.🛟 Turmeric stains clothes. What should you wear? (a) your best clothes (b) your school uniform (c) an old shirt or apron (d) a white party dress
7. 7.⚖️ 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
8. 8.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) white paper strips (b) soap solution (c) turmeric powder (d) a magnet
9. 9.True or false: a dropper or spoon is needed for the turmeric test. (a) True (b) False
10. 10.🫧 Which of these is a base? (a) baking soda water (b) salt water (c) curd (d) tamarind water
11. 11.🫧 Is orange juice an acid, a base or neutral? (a) an acid (b) neutral (c) a base
12. 12.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the turmeric paper is what we measure. (a) True (b) False
13. 13.🛟 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
14. 14.🧺 Do we need yeast for the turmeric test? (a) needed (b) not needed
15. 15.🧺 Which of these is not needed for the turmeric test? (a) a dropper or spoon (b) yeast (c) turmeric powder (d) soap solution
16. 16.⚖️ 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
17. 17.True or false: tamarind water is neutral. (a) True (b) False
18. 18.🔍 Which is the odd one out? (a) soap solution (b) detergent water (c) baking soda water (d) sugar water
19. 19.True or false: plain water turns turmeric reddish-brown. (a) True (b) False
20. 20.🔍 Which is the odd one out? (a) vinegar (b) lemon juice (c) tamarind water (d) soap solution
21. 21.⚖️ 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
22. 22.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) soap solution (b) water (c) a balloon (d) a dropper or spoon
23. 23.⚖️ 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
24. 24.⚖️ 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
25. 25.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the number of drops is kept the same. (a) False (b) True
26. 26.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the number of drops”? (a) we measure it (b) we change it (c) we keep it the same
27. 27.🟡 Which of these turns turmeric reddish-brown? (a) plain water (b) baking soda water (c) vinegar (d) sugar water
28. 28.True or false: a comb is needed for the turmeric test. (a) True (b) False
29. 29.🧺 Which of these is needed for the turmeric test? (a) turmeric powder (b) a balloon (c) a comb (d) yeast
30. 30.🫧 Is salt water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
31. 31.True or false: soap solution is not needed for the turmeric test. (a) False (b) True
32. 32.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a dropper or spoon (b) lemon juice (c) a comb (d) turmeric powder
33. 33.🟡 Turmeric paper meets plain water. What happens? (a) turns reddish-brown (b) stays yellow
34. 34.🔍 Which is the odd one out? (a) sugar water (b) salt water (c) baking soda water (d) lemon juice
35. 35.True or false: lemon juice is needed for the turmeric test. (a) False (b) True
36. 36.🧺 Do we need a mirror for the turmeric test? (a) needed (b) not needed
37. 37.🟡 Turmeric paper meets baking soda water. What happens? (a) stays yellow (b) turns reddish-brown
38. 38.🟡 Turmeric paper meets detergent water. What happens? (a) stays yellow (b) turns reddish-brown
39. 39.🟡 Turmeric paper meets soap solution. What happens? (a) stays yellow (b) turns reddish-brown
40. 40.🟡 Which of these turns turmeric reddish-brown? (a) vinegar (b) salt water (c) detergent water (d) lemon juice

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