Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 967 · 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.🧺 Do we need a battery cell for the turmeric test? (a) not needed (b) needed
2. 2.🔍 Which is the odd one out? (a) detergent water (b) soap solution (c) lemon juice (d) baking soda water
3. 3.🟡 Turmeric paper meets baking soda water. What happens? (a) turns reddish-brown (b) stays yellow
4. 4.🛟 Which rule keeps the turmeric test safe? (a) sip each liquid (b) use only kitchen items (c) sniff each bottle hard (d) mix bathroom cleaners
5. 5.🟡 Turmeric paper is dipped in soap solution. What colour does it turn? (a) reddish-brown (b) it stays white (c) bright blue (d) green
6. 6.🧺 Do we need water for the turmeric test? (a) not needed (b) needed
7. 7.🫧 Which of these is a base? (a) curd (b) salt water (c) sugar water (d) detergent water
8. 8.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the liquid we test (b) the number of drops (c) the turmeric paper (d) the colour we see
9. 9.🔍 Which is the odd one out? (a) detergent water (b) baking soda water (c) soap solution (d) salt water
10. 10.🫧 Which of these is a base? (a) orange juice (b) sugar water (c) tamarind water (d) soap solution
11. 11.⚖️ 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
12. 12.🛟 Turmeric stains clothes. What should you wear? (a) your best clothes (b) an old shirt or apron (c) your school uniform (d) a white party dress
13. 13.True or false: tamarind water turns turmeric reddish-brown. (a) False (b) True
14. 14.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the number of drops is kept the same. (a) False (b) True
15. 15.🧺 Do we need a mirror for the turmeric test? (a) not needed (b) needed
16. 16.🟡 Which of these turns turmeric reddish-brown? (a) salt water (b) sugar water (c) plain water (d) soap solution
17. 17.True or false: a battery cell is needed for the turmeric test. (a) False (b) True
18. 18.🫧 Which of these is neutral? (a) soap solution (b) tamarind water (c) salt water (d) baking soda water
19. 19.True or false: sugar water is neutral. (a) False (b) True
20. 20.🟡 Which of these turns turmeric reddish-brown? (a) baking soda water (b) tamarind water (c) sugar water (d) vinegar
21. 21.⚖️ 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
22. 22.True or false: soap solution is an acid. (a) False (b) True
23. 23.🫧 Is detergent water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
24. 24.🧺 Do we need white paper strips for the turmeric test? (a) needed (b) not needed
25. 25.🟡 Which of these turns turmeric paper reddish-brown? (a) soap solution (b) lemon juice (c) sugar water (d) vinegar
26. 26.🔍 Which is the odd one out? (a) detergent water (b) vinegar (c) salt water (d) sugar water
27. 27.🫧 Which of these is neutral? (a) detergent water (b) baking soda water (c) plain water (d) lemon juice
28. 28.🧺 Do we need a comb for the turmeric test? (a) needed (b) not needed
29. 29.⚖️ 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
30. 30.🧺 Do we need a dropper or spoon for the turmeric test? (a) needed (b) not needed
31. 31.🫧 Is plain water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
32. 32.🟡 Turmeric paper meets soap solution. What happens? (a) stays yellow (b) turns reddish-brown
33. 33.🟡 Which of these keeps turmeric yellow? (a) detergent water (b) tamarind water (c) baking soda water (d) soap solution
34. 34.🔮 Predict: turmeric paper is dipped in salt water. What happens? (a) it turns red (b) it turns black (c) it turns blue (d) it stays yellow
35. 35.🧺 Which of these is not needed for the turmeric test? (a) white paper strips (b) a dropper or spoon (c) yeast (d) lemon juice
36. 36.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a comb (b) white paper strips (c) water (d) lemon juice
37. 37.🍋 A reddish turmeric spot gets a few drops of lemon juice. What happens? (a) it turns blue (b) it turns darker red (c) it disappears (d) it turns yellow again
38. 38.🧺 Which of these is not needed for the turmeric test? (a) lemon juice (b) water (c) a mirror (d) soap solution
39. 39.True or false: white paper strips is needed for the turmeric test. (a) True (b) False
40. 40.True or false: soap solution is not needed for the turmeric test. (a) True (b) False

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