Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 432 · 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) soap solution (b) plain water (c) baking soda water (d) detergent water
2. 2.True or false: lemon juice is not needed for the turmeric test. (a) False (b) True
3. 3.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the colour we see”? (a) we keep it the same (b) we measure it (c) we change it
4. 4.🫧 Is orange juice an acid, a base or neutral? (a) a base (b) neutral (c) an acid
5. 5.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is the one thing we change? (a) the liquid we test (b) the light we look in (c) the colour we see (d) the turmeric paper
6. 6.🧺 Do we need a magnet for the turmeric test? (a) needed (b) not needed
7. 7.True or false: a balloon is needed for the turmeric test. (a) True (b) False
8. 8.🟡 Turmeric paper meets detergent water. What happens? (a) stays yellow (b) turns reddish-brown
9. 9.🟡 Which of these turns turmeric reddish-brown? (a) vinegar (b) plain water (c) sugar water (d) baking soda water
10. 10.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) lemon juice (b) a dropper or spoon (c) turmeric powder (d) yeast
11. 11.🧺 Which of these is not needed for the turmeric test? (a) white paper strips (b) turmeric powder (c) lemon juice (d) a battery cell
12. 12.⚖️ 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
13. 13.🫧 Which of these is a base? (a) baking soda water (b) plain water (c) tamarind water (d) lemon juice
14. 14.True or false: a dropper or spoon is not needed for the turmeric test. (a) False (b) True
15. 15.⚖️ 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
16. 16.True or false: a comb is needed for the turmeric test. (a) True (b) False
17. 17.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the liquid we test”? (a) we measure it (b) we change it (c) we keep it the same
18. 18.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the liquid we test is what we measure. (a) False (b) True
19. 19.🟡 Turmeric paper meets sugar water. What happens? (a) stays yellow (b) turns reddish-brown
20. 20.🧺 Which of these is not needed for the turmeric test? (a) lemon juice (b) a magnet (c) water (d) turmeric powder
21. 21.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) it stays yellow (b) reddish-brown (c) it turns green (d) it turns blue
22. 22.🫧 Which of these is neutral? (a) curd (b) detergent water (c) soap solution (d) sugar water
23. 23.⚖️ 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
24. 24.🟡 Which of these keeps turmeric yellow? (a) baking soda water (b) vinegar (c) soap solution (d) detergent water
25. 25.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the number of drops is the one thing we change. (a) True (b) False
26. 26.🔮 Predict: turmeric paper is dipped in salt water. What happens? (a) it turns blue (b) it turns red (c) it stays yellow (d) it turns black
27. 27.🧺 Which of these is needed for the turmeric test? (a) yeast (b) a balloon (c) a mirror (d) soap solution
28. 28.🧺 Which of these is needed for the turmeric test? (a) yeast (b) a balloon (c) a magnet (d) turmeric powder
29. 29.🛟 Turmeric stains clothes. What should you wear? (a) a white party dress (b) your best clothes (c) an old shirt or apron (d) your school uniform
30. 30.True or false: baking soda water turns turmeric reddish-brown. (a) False (b) True
31. 31.🧺 Which of these is not needed for the turmeric test? (a) soap solution (b) lemon juice (c) a comb (d) a dropper or spoon
32. 32.🟡 Which of these keeps turmeric yellow? (a) detergent water (b) soap solution (c) lemon juice (d) baking soda water
33. 33.True or false: plain water is neutral. (a) True (b) False
34. 34.🧺 Which of these is needed for the turmeric test? (a) yeast (b) a battery cell (c) a magnet (d) white paper strips
35. 35.📘 What do we call something that changes colour to show an acid or a base? (a) a prism (b) a magnet (c) a pulley (d) an indicator
36. 36.True or false: vinegar is an acid. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) soap solution (b) tamarind water (c) sugar water (d) plain water
38. 38.True or false: white paper strips is not needed for the turmeric test. (a) True (b) False
39. 39.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) turmeric powder (b) a balloon (c) lemon juice (d) water
40. 40.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) soap solution (b) turmeric powder (c) white paper strips (d) a comb

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