Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 104 · 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 is the odd one out? (a) vinegar (b) baking soda water (c) soap solution (d) detergent water
2. 2.True or false: soap solution turns turmeric reddish-brown. (a) True (b) False
3. 3.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the number of drops (b) the colour we see (c) the light we look in (d) the turmeric paper
4. 4.True or false: turmeric powder is needed for the turmeric test. (a) False (b) True
5. 5.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) reddish-brown (b) it turns blue (c) it turns green (d) it stays yellow
6. 6.True or false: vinegar keeps turmeric yellow. (a) False (b) True
7. 7.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) lemon juice (b) a dropper or spoon (c) a comb (d) water
8. 8.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the liquid we test is the one thing we change. (a) True (b) False
9. 9.🫧 Is curd an acid, a base or neutral? (a) a base (b) neutral (c) an acid
10. 10.🔍 Which is the odd one out? (a) detergent water (b) baking soda water (c) soap solution (d) lemon juice
11. 11.True or false: baking soda water is neutral. (a) True (b) False
12. 12.🟡 Turmeric paper meets salt water. What happens? (a) turns reddish-brown (b) stays yellow
13. 13.True or false: a mirror is needed for the turmeric test. (a) False (b) True
14. 14.🛟 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
15. 15.🟡 Which of these turns turmeric paper reddish-brown? (a) sugar water (b) soap solution (c) lemon juice (d) vinegar
16. 16.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) white paper strips (b) a dropper or spoon (c) turmeric powder (d) a balloon
17. 17.True or false: tamarind water is an acid. (a) False (b) True
18. 18.🟡 Why does soap solution change turmeric’s colour? (a) soap water is a base (b) soap is magnetic (c) soap is hot (d) soap is an acid
19. 19.True or false: orange juice is a base. (a) True (b) False
20. 20.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the turmeric paper is kept the same. (a) True (b) False
21. 21.🧺 Do we need a balloon for the turmeric test? (a) needed (b) not needed
22. 22.True or false: curd is an acid. (a) False (b) True
23. 23.🫧 Which of these is an acid? (a) detergent water (b) baking soda water (c) curd (d) plain water
24. 24.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) yeast (b) white paper strips (c) soap solution (d) turmeric powder
25. 25.🛟 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
26. 26.🔮 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
27. 27.🧺 Which of these is not needed for the turmeric test? (a) a dropper or spoon (b) a balloon (c) turmeric powder (d) lemon juice
28. 28.🟡 Which of these turns turmeric reddish-brown? (a) plain water (b) vinegar (c) salt water (d) soap solution
29. 29.🧺 Which of these is needed for the turmeric test? (a) a magnet (b) a comb (c) a mirror (d) lemon juice
30. 30.🧺 Which of these is needed for the turmeric test? (a) yeast (b) a magnet (c) a battery cell (d) water
31. 31.True or false: salt water is an acid. (a) True (b) False
32. 32.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) turmeric powder (b) water (c) a battery cell (d) white paper strips
33. 33.True or false: plain water turns turmeric reddish-brown. (a) False (b) True
34. 34.⚖️ 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 measure it (c) we change it
35. 35.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the light we look in”? (a) we measure it (b) we change it (c) we keep it the same
36. 36.🧺 Which of these is needed for the turmeric test? (a) a mirror (b) soap solution (c) a balloon (d) a magnet
37. 37.True or false: tamarind water keeps turmeric yellow. (a) False (b) True
38. 38.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is the one thing we change? (a) the number of drops (b) the turmeric paper (c) the liquid we test (d) the light we look in
39. 39.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the number of drops”? (a) we keep it the same (b) we change it (c) we measure it
40. 40.🫧 Which of these is a base? (a) curd (b) detergent water (c) tamarind water (d) orange juice

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