Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 195 · 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.🛟 Turmeric stains clothes. What should you wear? (a) a white party dress (b) an old shirt or apron (c) your school uniform (d) your best clothes
2. 2.🟡 Turmeric paper meets tamarind water. What happens? (a) turns reddish-brown (b) stays yellow
3. 3.🫧 Which of these is an acid? (a) baking soda water (b) salt water (c) vinegar (d) detergent water
4. 4.🛟 Which rule keeps the turmeric test safe? (a) mix bathroom cleaners (b) sniff each bottle hard (c) sip each liquid (d) use only kitchen items
5. 5.🫧 Which of these is an acid? (a) detergent water (b) baking soda water (c) orange juice (d) salt water
6. 6.🟡 Which of these turns turmeric reddish-brown? (a) salt water (b) soap solution (c) lemon juice (d) tamarind water
7. 7.True or false: vinegar turns turmeric reddish-brown. (a) True (b) False
8. 8.⚖️ 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
9. 9.🫧 Which of these is a base? (a) sugar water (b) curd (c) baking soda water (d) tamarind water
10. 10.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the colour we see is the one thing we change. (a) True (b) False
11. 11.True or false: plain water is neutral. (a) True (b) False
12. 12.🫧 Which of these is a base? (a) salt water (b) orange juice (c) curd (d) detergent water
13. 13.🫧 Is plain water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
14. 14.🧺 Do we need a battery cell for the turmeric test? (a) needed (b) not needed
15. 15.🧺 Which of these is not needed for the turmeric test? (a) turmeric powder (b) water (c) a magnet (d) white paper strips
16. 16.🟡 Which of these keeps turmeric yellow? (a) soap solution (b) vinegar (c) detergent water (d) baking soda water
17. 17.🧺 Do we need a mirror for the turmeric test? (a) not needed (b) needed
18. 18.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the liquid we test is kept the same. (a) True (b) False
19. 19.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the light we look in (b) the colour we see (c) the liquid we test
20. 20.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) soap solution (b) lemon juice (c) white paper strips (d) yeast
21. 21.🔮 Predict: a yellow curry stain on a shirt is washed with soap. What colour may it turn? (a) reddish (b) bright blue (c) green (d) white at once
22. 22.⚖️ 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 light we look in
23. 23.True or false: curd is an acid. (a) False (b) True
24. 24.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a mirror (b) a dropper or spoon (c) soap solution (d) turmeric powder
25. 25.🟡 Turmeric paper meets vinegar. What happens? (a) turns reddish-brown (b) stays yellow
26. 26.🟡 Turmeric paper meets sugar water. What happens? (a) stays yellow (b) turns reddish-brown
27. 27.True or false: lemon juice is needed for the turmeric test. (a) True (b) False
28. 28.🍋 A drop of lemon juice falls on turmeric paper. What happens? (a) it turns black (b) it turns red (c) it stays yellow (d) it turns blue
29. 29.🧺 Do we need water for the turmeric test? (a) not needed (b) needed
30. 30.⚖️ 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 change it (c) we measure it
31. 31.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) soap solution (b) lemon juice (c) a comb (d) water
32. 32.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the colour we see is what we measure. (a) False (b) True
33. 33.🫧 Is soap solution an acid, a base or neutral? (a) an acid (b) neutral (c) a base
34. 34.🫧 Is curd an acid, a base or neutral? (a) neutral (b) an acid (c) a base
35. 35.True or false: sugar water keeps turmeric yellow. (a) False (b) True
36. 36.🧺 Which of these is needed for the turmeric test? (a) a balloon (b) yeast (c) a magnet (d) soap solution
37. 37.🫧 Is lemon juice an acid, a base or neutral? (a) neutral (b) a base (c) an acid
38. 38.🧺 Which of these is not needed for the turmeric test? (a) turmeric powder (b) soap solution (c) a balloon (d) white paper strips
39. 39.🍋 A reddish turmeric spot gets a few drops of lemon juice. What happens? (a) it disappears (b) it turns yellow again (c) it turns darker red (d) it turns blue
40. 40.True or false: salt water is a base. (a) True (b) False

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