Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 356 · 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 of these is needed for the turmeric test? (a) a battery cell (b) yeast (c) lemon juice (d) a magnet
2. 2.🔍 Which is the odd one out? (a) plain water (b) soap solution (c) baking soda water (d) detergent water
3. 3.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) soap solution (b) lemon juice (c) yeast (d) white paper strips
4. 4.🛟 Turmeric stains clothes. What should you wear? (a) your school uniform (b) an old shirt or apron (c) a white party dress (d) your best clothes
5. 5.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) it stays yellow (b) it turns green (c) it turns blue (d) reddish-brown
6. 6.True or false: sugar water keeps turmeric yellow. (a) False (b) True
7. 7.🧺 Which of these is not needed for the turmeric test? (a) white paper strips (b) a balloon (c) soap solution (d) water
8. 8.🔍 Which is the odd one out? (a) soap solution (b) lemon juice (c) baking soda water (d) detergent water
9. 9.True or false: detergent water turns turmeric reddish-brown. (a) False (b) True
10. 10.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a comb (b) white paper strips (c) a dropper or spoon (d) turmeric powder
11. 11.🟡 Turmeric paper is dipped in soap solution. What colour does it turn? (a) it stays white (b) reddish-brown (c) green (d) bright blue
12. 12.⚖️ 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
13. 13.🛟 Which rule keeps the turmeric test safe? (a) sniff each bottle hard (b) mix bathroom cleaners (c) use only kitchen items (d) sip each liquid
14. 14.🧺 Which of these is needed for the turmeric test? (a) a comb (b) yeast (c) a battery cell (d) a dropper or spoon
15. 15.🧺 Do we need a dropper or spoon for the turmeric test? (a) not needed (b) needed
16. 16.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the colour we see”? (a) we change it (b) we keep it the same (c) we measure it
17. 17.🫧 Is soap solution an acid, a base or neutral? (a) an acid (b) neutral (c) a base
18. 18.🧺 Do we need water for the turmeric test? (a) needed (b) not needed
19. 19.🔍 Which is the odd one out? (a) salt water (b) detergent water (c) plain water (d) lemon juice
20. 20.🧺 Which of these is needed for the turmeric test? (a) a mirror (b) a comb (c) a balloon (d) turmeric powder
21. 21.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a mirror (b) soap solution (c) white paper strips (d) turmeric powder
22. 22.🔍 Which is the odd one out? (a) vinegar (b) sugar water (c) tamarind water (d) soap solution
23. 23.🧺 Do we need white paper strips for the turmeric test? (a) needed (b) not needed
24. 24.⚖️ 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
25. 25.🟡 Which of these turns turmeric reddish-brown? (a) sugar water (b) tamarind water (c) plain water (d) baking soda water
26. 26.⚖️ 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
27. 27.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the turmeric paper is what we measure. (a) False (b) True
28. 28.🟡 Which of these keeps turmeric yellow? (a) lemon juice (b) baking soda water (c) detergent water (d) soap solution
29. 29.🟡 Turmeric paper meets soap solution. What happens? (a) turns reddish-brown (b) stays yellow
30. 30.🫧 Which of these is an acid? (a) vinegar (b) salt water (c) baking soda water (d) soap solution
31. 31.🫧 Which of these is an acid? (a) detergent water (b) curd (c) soap solution (d) baking soda water
32. 32.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the turmeric paper is the one thing we change. (a) False (b) True
33. 33.🫧 Which of these is neutral? (a) vinegar (b) curd (c) plain water (d) lemon juice
34. 34.🟡 Turmeric paper meets tamarind water. What happens? (a) stays yellow (b) turns reddish-brown
35. 35.🟡 Which of these turns turmeric reddish-brown? (a) vinegar (b) salt water (c) sugar water (d) soap solution
36. 36.True or false: a balloon is not needed for the turmeric test. (a) False (b) True
37. 37.🫧 Which of these is a base? (a) lemon juice (b) vinegar (c) tamarind water (d) detergent water
38. 38.🔮 Predict: turmeric paper is dipped in salt water. What happens? (a) it turns red (b) it turns blue (c) it stays yellow (d) it turns black
39. 39.🧺 Which of these is not needed for the turmeric test? (a) lemon juice (b) turmeric powder (c) white paper strips (d) yeast
40. 40.🟡 Which of these keeps turmeric yellow? (a) detergent water (b) soap solution (c) baking soda water (d) salt water

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