Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 478 · 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 rule keeps the turmeric test safe? (a) sip each liquid (b) mix bathroom cleaners (c) use only kitchen items (d) sniff each bottle hard
2. 2.🫧 Is orange juice an acid, a base or neutral? (a) a base (b) an acid (c) neutral
3. 3.True or false: vinegar is an acid. (a) True (b) False
4. 4.🫧 Which of these is neutral? (a) salt water (b) vinegar (c) curd (d) tamarind water
5. 5.🟡 Turmeric paper meets sugar water. What happens? (a) stays yellow (b) turns reddish-brown
6. 6.🟡 Which of these turns turmeric reddish-brown? (a) lemon juice (b) tamarind water (c) sugar water (d) baking soda water
7. 7.🧺 Which of these is not needed for the turmeric test? (a) a dropper or spoon (b) soap solution (c) a comb (d) water
8. 8.🔍 Which is the odd one out? (a) plain water (b) soap solution (c) detergent water (d) baking soda water
9. 9.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is the one thing we change? (a) the colour we see (b) the liquid we test (c) the number of drops (d) the turmeric paper
10. 10.🔍 Which is the odd one out? (a) sugar water (b) baking soda water (c) detergent water (d) soap solution
11. 11.True or false: baking soda water is a base. (a) False (b) True
12. 12.🛟 Turmeric stains clothes. What should you wear? (a) your school uniform (b) your best clothes (c) a white party dress (d) an old shirt or apron
13. 13.🧺 Do we need a magnet for the turmeric test? (a) needed (b) not needed
14. 14.🟡 Which of these keeps turmeric yellow? (a) baking soda water (b) salt water (c) soap solution (d) detergent water
15. 15.🫧 Which of these is an acid? (a) detergent water (b) lemon juice (c) soap solution (d) plain water
16. 16.True or false: orange juice is an acid. (a) False (b) True
17. 17.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the number of drops (b) the liquid we test (c) the colour we see
18. 18.🧺 Do we need lemon juice for the turmeric test? (a) not needed (b) needed
19. 19.🫧 Is curd an acid, a base or neutral? (a) a base (b) an acid (c) neutral
20. 20.🧺 Which of these is needed for the turmeric test? (a) turmeric powder (b) yeast (c) a comb (d) a balloon
21. 21.True or false: plain water turns turmeric reddish-brown. (a) True (b) False
22. 22.🫧 Which of these is an acid? (a) detergent water (b) soap solution (c) curd (d) plain water
23. 23.🍋 A drop of lemon juice falls on turmeric paper. What happens? (a) it turns red (b) it stays yellow (c) it turns blue (d) it turns black
24. 24.🧺 Do we need white paper strips for the turmeric test? (a) not needed (b) needed
25. 25.🔮 Predict: turmeric paper is dipped in salt water. What happens? (a) it turns blue (b) it turns black (c) it turns red (d) it stays yellow
26. 26.🟡 Turmeric paper meets plain water. What happens? (a) stays yellow (b) turns reddish-brown
27. 27.🟡 Turmeric paper meets vinegar. What happens? (a) turns reddish-brown (b) stays yellow
28. 28.🫧 Is soap solution an acid, a base or neutral? (a) an acid (b) a base (c) neutral
29. 29.True or false: white paper strips is needed for the turmeric test. (a) False (b) True
30. 30.True or false: soap solution is an acid. (a) False (b) True
31. 31.True or false: sugar water keeps turmeric yellow. (a) True (b) False
32. 32.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the liquid we test is what we measure. (a) True (b) False
33. 33.🧺 Which of these is not needed for the turmeric test? (a) soap solution (b) turmeric powder (c) a dropper or spoon (d) yeast
34. 34.⚖️ 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
35. 35.🧺 Which of these is not needed for the turmeric test? (a) water (b) a magnet (c) a dropper or spoon (d) turmeric powder
36. 36.True or false: water is needed for the turmeric test. (a) False (b) True
37. 37.🫧 Is tamarind water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
38. 38.🫧 Is vinegar an acid, a base or neutral? (a) an acid (b) a base (c) neutral
39. 39.🔍 Which is the odd one out? (a) vinegar (b) plain water (c) baking soda water (d) salt water
40. 40.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the light we look in is what we measure. (a) True (b) False

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