Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 627 · 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 of these is needed for the turmeric test? (a) a battery cell (b) a mirror (c) white paper strips (d) a comb
2. 2.🧺 Do we need soap solution for the turmeric test? (a) needed (b) not needed
3. 3.🟡 Turmeric paper meets baking soda water. What happens? (a) turns reddish-brown (b) stays yellow
4. 4.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the colour we see (b) the liquid we test (c) the number of drops (d) the turmeric paper
5. 5.True or false: salt water turns turmeric reddish-brown. (a) True (b) False
6. 6.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) water (b) yeast (c) turmeric powder (d) white paper strips
7. 7.🫧 Which of these is neutral? (a) soap solution (b) plain water (c) detergent water (d) tamarind water
8. 8.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) lemon juice (b) soap solution (c) a mirror (d) a dropper or spoon
9. 9.🫧 Is detergent water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
10. 10.🧺 Which of these is needed for the turmeric test? (a) a dropper or spoon (b) a balloon (c) a mirror (d) yeast
11. 11.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the light we look in is kept the same. (a) False (b) True
12. 12.🔍 Which is the odd one out? (a) baking soda water (b) soap solution (c) plain water (d) detergent water
13. 13.⚖️ 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
14. 14.🫧 Is soap solution an acid, a base or neutral? (a) a base (b) an acid (c) neutral
15. 15.🔍 Which is the odd one out? (a) tamarind water (b) salt water (c) detergent water (d) lemon juice
16. 16.🫧 Is tamarind water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
17. 17.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) reddish-brown (b) it turns blue (c) it stays yellow (d) it turns green
18. 18.🧺 Do we need turmeric powder for the turmeric test? (a) needed (b) not needed
19. 19.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the number of drops is kept the same. (a) True (b) False
20. 20.🛟 Turmeric stains clothes. What should you wear? (a) your best clothes (b) a white party dress (c) your school uniform (d) an old shirt or apron
21. 21.🟡 Turmeric paper meets vinegar. What happens? (a) turns reddish-brown (b) stays yellow
22. 22.🟡 Which of these turns turmeric reddish-brown? (a) tamarind water (b) baking soda water (c) salt water (d) vinegar
23. 23.True or false: lemon juice turns turmeric reddish-brown. (a) False (b) True
24. 24.🟡 Turmeric paper meets lemon juice. What happens? (a) turns reddish-brown (b) stays yellow
25. 25.True or false: white paper strips is not needed for the turmeric test. (a) True (b) False
26. 26.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the number of drops (b) the colour we see (c) the liquid we test
27. 27.True or false: tamarind water keeps turmeric yellow. (a) False (b) True
28. 28.🫧 Which of these is an acid? (a) vinegar (b) plain water (c) soap solution (d) baking soda water
29. 29.True or false: soap solution is needed for the turmeric test. (a) False (b) True
30. 30.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the liquid we test”? (a) we measure it (b) we keep it the same (c) we change it
31. 31.True or false: orange juice is an acid. (a) True (b) False
32. 32.🫧 Is baking soda water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
33. 33.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the colour we see (b) the turmeric paper (c) the liquid we test
34. 34.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the turmeric paper is what we measure. (a) True (b) False
35. 35.🔍 Which is the odd one out? (a) tamarind water (b) detergent water (c) soap solution (d) baking soda water
36. 36.⚖️ 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
37. 37.🔍 Which is the odd one out? (a) soap solution (b) lemon juice (c) detergent water (d) baking soda water
38. 38.🫧 Which of these is neutral? (a) sugar water (b) vinegar (c) curd (d) tamarind water
39. 39.🟡 Which of these keeps turmeric yellow? (a) baking soda water (b) soap solution (c) sugar water (d) detergent water
40. 40.🟡 Which of these keeps turmeric yellow? (a) soap solution (b) detergent water (c) baking soda water (d) lemon juice

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