Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 536 · 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) sniff each bottle hard (b) mix bathroom cleaners (c) use only kitchen items (d) sip each liquid
2. 2.🧺 Do we need soap solution for the turmeric test? (a) needed (b) not needed
3. 3.True or false: a magnet is needed for the turmeric test. (a) True (b) False
4. 4.🛟 Turmeric stains clothes. What should you wear? (a) your best clothes (b) an old shirt or apron (c) a white party dress (d) your school uniform
5. 5.🫧 Which of these is neutral? (a) baking soda water (b) orange juice (c) curd (d) sugar water
6. 6.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the liquid we test is what we measure. (a) False (b) True
7. 7.True or false: vinegar keeps turmeric yellow. (a) False (b) True
8. 8.🍋 A drop of lemon juice falls on turmeric paper. What happens? (a) it turns red (b) it turns blue (c) it turns black (d) it stays yellow
9. 9.🔍 Which is the odd one out? (a) soap solution (b) baking soda water (c) sugar water (d) detergent water
10. 10.🟡 Which of these turns turmeric reddish-brown? (a) plain water (b) soap solution (c) sugar water (d) lemon juice
11. 11.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the liquid we test”? (a) we keep it the same (b) we measure it (c) we change it
12. 12.🫧 Is tamarind water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
13. 13.🧺 Do we need turmeric powder for the turmeric test? (a) not needed (b) needed
14. 14.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) it turns blue (b) it turns green (c) it stays yellow (d) reddish-brown
15. 15.🟡 Turmeric paper meets baking soda water. What happens? (a) turns reddish-brown (b) stays yellow
16. 16.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) turmeric powder (b) yeast (c) soap solution (d) lemon juice
17. 17.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a comb (b) a dropper or spoon (c) soap solution (d) white paper strips
18. 18.⚖️ 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
19. 19.🟡 Which of these turns turmeric reddish-brown? (a) detergent water (b) plain water (c) tamarind water (d) lemon juice
20. 20.🔮 Predict: turmeric paper is dipped in salt water. What happens? (a) it turns black (b) it turns blue (c) it stays yellow (d) it turns red
21. 21.True or false: detergent water keeps turmeric yellow. (a) False (b) True
22. 22.⚖️ 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
23. 23.🫧 Is curd an acid, a base or neutral? (a) neutral (b) a base (c) an acid
24. 24.🟡 Which of these turns turmeric reddish-brown? (a) plain water (b) sugar water (c) salt water (d) baking soda water
25. 25.🟡 Turmeric paper is dipped in soap solution. What colour does it turn? (a) it stays white (b) green (c) bright blue (d) reddish-brown
26. 26.🟡 Turmeric paper meets sugar water. What happens? (a) turns reddish-brown (b) stays yellow
27. 27.🫧 Which of these is an acid? (a) salt water (b) orange juice (c) detergent water (d) plain water
28. 28.True or false: orange juice is neutral. (a) False (b) True
29. 29.🫧 Which of these is an acid? (a) baking soda water (b) plain water (c) salt water (d) lemon juice
30. 30.🫧 Is lemon juice an acid, a base or neutral? (a) a base (b) neutral (c) an acid
31. 31.🧺 Which of these is not needed for the turmeric test? (a) lemon juice (b) white paper strips (c) turmeric powder (d) a mirror
32. 32.🟡 Which of these turns turmeric paper reddish-brown? (a) vinegar (b) lemon juice (c) soap solution (d) sugar water
33. 33.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the number of drops”? (a) we measure it (b) we keep it the same (c) we change it
34. 34.🔍 Which is the odd one out? (a) detergent water (b) baking soda water (c) soap solution (d) vinegar
35. 35.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the number of drops is what we measure. (a) False (b) True
36. 36.🔍 Which is the odd one out? (a) detergent water (b) plain water (c) soap solution (d) baking soda water
37. 37.🟡 Turmeric paper meets lemon juice. What happens? (a) turns reddish-brown (b) stays yellow
38. 38.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the turmeric paper (b) the colour we see (c) the liquid we test
39. 39.🧺 Which of these is not needed for the turmeric test? (a) turmeric powder (b) lemon juice (c) soap solution (d) a balloon
40. 40.🫧 Which of these is neutral? (a) curd (b) tamarind water (c) salt water (d) soap solution

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