Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 119 · 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 turns turmeric reddish-brown? (a) tamarind water (b) vinegar (c) baking soda water (d) lemon juice
2. 2.True or false: detergent water keeps turmeric yellow. (a) False (b) True
3. 3.🫧 Is detergent water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
4. 4.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the colour we see is what we measure. (a) False (b) True
5. 5.🟡 Which of these keeps turmeric yellow? (a) detergent water (b) soap solution (c) baking soda water (d) sugar water
6. 6.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) white paper strips (b) water (c) a magnet (d) a dropper or spoon
7. 7.True or false: water is not needed for the turmeric test. (a) False (b) True
8. 8.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the number of drops”? (a) we change it (b) we keep it the same (c) we measure it
9. 9.⚖️ 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
10. 10.🔍 Which is the odd one out? (a) soap solution (b) vinegar (c) detergent water (d) baking soda water
11. 11.True or false: soap solution is needed for the turmeric test. (a) False (b) True
12. 12.🛟 Turmeric stains clothes. What should you wear? (a) your best clothes (b) a white party dress (c) an old shirt or apron (d) your school uniform
13. 13.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the colour we see”? (a) we measure it (b) we keep it the same (c) we change it
14. 14.True or false: a comb is needed for the turmeric test. (a) True (b) False
15. 15.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the colour we see (b) the light we look in (c) the liquid we test
16. 16.🧺 Which of these is needed for the turmeric test? (a) a balloon (b) a mirror (c) white paper strips (d) a magnet
17. 17.🫧 Is orange juice an acid, a base or neutral? (a) an acid (b) neutral (c) a base
18. 18.🧺 Which of these is not needed for the turmeric test? (a) lemon juice (b) white paper strips (c) a comb (d) turmeric powder
19. 19.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) reddish-brown (b) it stays yellow (c) it turns blue (d) it turns green
20. 20.🟡 Turmeric paper meets soap solution. What happens? (a) turns reddish-brown (b) stays yellow
21. 21.🟡 Which of these turns turmeric paper reddish-brown? (a) sugar water (b) vinegar (c) lemon juice (d) soap solution
22. 22.🔮 Predict: turmeric paper is dipped in salt water. What happens? (a) it turns red (b) it stays yellow (c) it turns blue (d) it turns black
23. 23.🛟 Which rule keeps the turmeric test safe? (a) use only kitchen items (b) sniff each bottle hard (c) mix bathroom cleaners (d) sip each liquid
24. 24.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a dropper or spoon (b) a balloon (c) turmeric powder (d) white paper strips
25. 25.🧺 Which of these is not needed for the turmeric test? (a) a dropper or spoon (b) white paper strips (c) soap solution (d) a balloon
26. 26.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a dropper or spoon (b) lemon juice (c) yeast (d) water
27. 27.🟡 Turmeric paper meets salt water. What happens? (a) stays yellow (b) turns reddish-brown
28. 28.🔍 Which is the odd one out? (a) sugar water (b) lemon juice (c) tamarind water (d) baking soda water
29. 29.🫧 Is lemon juice an acid, a base or neutral? (a) an acid (b) a base (c) neutral
30. 30.🫧 Is baking soda water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
31. 31.🔍 Which is the odd one out? (a) soap solution (b) salt water (c) plain water (d) vinegar
32. 32.🧺 Which of these is needed for the turmeric test? (a) a mirror (b) water (c) a battery cell (d) a balloon
33. 33.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the number of drops is what we measure. (a) False (b) True
34. 34.True or false: a mirror is not needed for the turmeric test. (a) True (b) False
35. 35.🧺 Which of these is needed for the turmeric test? (a) a mirror (b) soap solution (c) a magnet (d) a balloon
36. 36.🫧 Is tamarind water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
37. 37.🔍 Which is the odd one out? (a) detergent water (b) baking soda water (c) tamarind water (d) soap solution
38. 38.🫧 Which of these is neutral? (a) orange juice (b) soap solution (c) curd (d) salt water
39. 39.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is the one thing we change? (a) the turmeric paper (b) the light we look in (c) the liquid we test (d) the colour we see
40. 40.🫧 Is sugar water an acid, a base or neutral? (a) an acid (b) neutral (c) a base

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids