Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 420 · 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.True or false: tamarind water turns turmeric reddish-brown. (a) True (b) False
2. 2.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the turmeric paper”? (a) we measure it (b) we change it (c) we keep it the same
3. 3.🧺 Do we need a mirror for the turmeric test? (a) needed (b) not needed
4. 4.🟡 Turmeric paper meets lemon juice. What happens? (a) turns reddish-brown (b) stays yellow
5. 5.🟡 Which of these keeps turmeric yellow? (a) soap solution (b) detergent water (c) baking soda water (d) plain water
6. 6.🔍 Which is the odd one out? (a) plain water (b) baking soda water (c) vinegar (d) salt water
7. 7.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the liquid we test”? (a) we change it (b) we measure it (c) we keep it the same
8. 8.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the turmeric paper is the one thing we change. (a) False (b) True
9. 9.🧺 Which of these is not needed for the turmeric test? (a) turmeric powder (b) water (c) white paper strips (d) yeast
10. 10.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the number of drops is the one thing we change. (a) False (b) True
11. 11.🛟 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
12. 12.📘 What do we call something that changes colour to show an acid or a base? (a) a prism (b) an indicator (c) a pulley (d) a magnet
13. 13.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a dropper or spoon (b) a magnet (c) soap solution (d) water
14. 14.True or false: a mirror is needed for the turmeric test. (a) True (b) False
15. 15.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) water (b) soap solution (c) turmeric powder (d) a mirror
16. 16.🟡 Turmeric paper is dipped in soap solution. What colour does it turn? (a) green (b) it stays white (c) reddish-brown (d) bright blue
17. 17.🔍 Which is the odd one out? (a) baking soda water (b) detergent water (c) lemon juice (d) soap solution
18. 18.🧺 Do we need a balloon for the turmeric test? (a) not needed (b) needed
19. 19.🧺 Do we need turmeric powder for the turmeric test? (a) needed (b) not needed
20. 20.True or false: lemon juice turns turmeric reddish-brown. (a) True (b) False
21. 21.🟡 Turmeric paper meets baking soda water. What happens? (a) turns reddish-brown (b) stays yellow
22. 22.🔮 Predict: turmeric paper is dipped in salt water. What happens? (a) it turns red (b) it turns blue (c) it stays yellow (d) it turns black
23. 23.🟡 Which of these keeps turmeric yellow? (a) detergent water (b) tamarind water (c) baking soda water (d) soap solution
24. 24.🧺 Which of these is not needed for the turmeric test? (a) a battery cell (b) white paper strips (c) soap solution (d) turmeric powder
25. 25.🧺 Which of these is needed for the turmeric test? (a) a battery cell (b) a comb (c) a magnet (d) a dropper or spoon
26. 26.🟡 Which of these turns turmeric reddish-brown? (a) tamarind water (b) lemon juice (c) detergent water (d) vinegar
27. 27.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the number of drops is what we measure. (a) False (b) True
28. 28.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) it turns blue (b) it stays yellow (c) reddish-brown (d) it turns green
29. 29.🛟 Which rule keeps the turmeric test safe? (a) mix bathroom cleaners (b) sip each liquid (c) use only kitchen items (d) sniff each bottle hard
30. 30.🧺 Which of these is needed for the turmeric test? (a) yeast (b) soap solution (c) a balloon (d) a magnet
31. 31.True or false: lemon juice is neutral. (a) True (b) False
32. 32.True or false: baking soda water keeps turmeric yellow. (a) False (b) True
33. 33.🟡 Which of these turns turmeric reddish-brown? (a) tamarind water (b) lemon juice (c) soap solution (d) plain water
34. 34.True or false: soap solution is a base. (a) False (b) True
35. 35.⚖️ 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
36. 36.True or false: a battery cell is not needed for the turmeric test. (a) False (b) True
37. 37.🟡 Which of these turns turmeric reddish-brown? (a) baking soda water (b) plain water (c) tamarind water (d) vinegar
38. 38.🫧 Is sugar water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
39. 39.🫧 Is curd an acid, a base or neutral? (a) neutral (b) a base (c) an acid
40. 40.🧺 Do we need soap solution for the turmeric test? (a) not needed (b) needed

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