Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 1 · 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.🔮 Predict: turmeric paper is dipped in salt water. What happens? (a) it turns blue (b) it stays yellow (c) it turns red (d) it turns black
2. 2.🧺 Which of these is not needed for the turmeric test? (a) a magnet (b) white paper strips (c) a dropper or spoon (d) lemon juice
3. 3.⚖️ 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
4. 4.True or false: baking soda water keeps turmeric yellow. (a) False (b) True
5. 5.True or false: a balloon is not needed for the turmeric test. (a) False (b) True
6. 6.🟡 Which of these turns turmeric reddish-brown? (a) tamarind water (b) salt water (c) soap solution (d) sugar water
7. 7.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the number of drops (b) the colour we see (c) the liquid we test (d) the light we look in
8. 8.True or false: water is needed for the turmeric test. (a) True (b) False
9. 9.🫧 Is vinegar an acid, a base or neutral? (a) a base (b) an acid (c) neutral
10. 10.🛟 Turmeric stains clothes. What should you wear? (a) an old shirt or apron (b) your best clothes (c) a white party dress (d) your school uniform
11. 11.True or false: orange juice is an acid. (a) True (b) False
12. 12.🟡 Turmeric paper meets tamarind water. What happens? (a) turns reddish-brown (b) stays yellow
13. 13.🔍 Which is the odd one out? (a) lemon juice (b) tamarind water (c) sugar water (d) baking soda water
14. 14.🔍 Which is the odd one out? (a) baking soda water (b) detergent water (c) sugar water (d) soap solution
15. 15.🧺 Which of these is needed for the turmeric test? (a) a comb (b) a dropper or spoon (c) a magnet (d) a battery cell
16. 16.🧺 Do we need lemon juice for the turmeric test? (a) not needed (b) needed
17. 17.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the light we look in is the one thing we change. (a) True (b) False
18. 18.🛟 Which rule keeps the turmeric test safe? (a) mix bathroom cleaners (b) use only kitchen items (c) sniff each bottle hard (d) sip each liquid
19. 19.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) lemon juice (b) a dropper or spoon (c) a comb (d) water
20. 20.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the light we look in is kept the same. (a) True (b) False
21. 21.🟡 Which of these turns turmeric reddish-brown? (a) tamarind water (b) vinegar (c) detergent water (d) plain water
22. 22.🫧 Is plain water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
23. 23.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a mirror (b) lemon juice (c) white paper strips (d) water
24. 24.True or false: salt water keeps turmeric yellow. (a) True (b) False
25. 25.🟡 Which of these keeps turmeric yellow? (a) soap solution (b) detergent water (c) baking soda water (d) vinegar
26. 26.🧺 Which of these is needed for the turmeric test? (a) a comb (b) a magnet (c) yeast (d) turmeric powder
27. 27.⚖️ 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 change it (c) we measure it
28. 28.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a dropper or spoon (b) soap solution (c) a battery cell (d) turmeric powder
29. 29.🍋 A drop of lemon juice falls on turmeric paper. What happens? (a) it turns black (b) it turns blue (c) it turns red (d) it stays yellow
30. 30.🧺 Which of these is needed for the turmeric test? (a) a magnet (b) white paper strips (c) a battery cell (d) a balloon
31. 31.🟡 Which of these keeps turmeric yellow? (a) detergent water (b) salt water (c) baking soda water (d) soap solution
32. 32.🧺 Which of these is not needed for the turmeric test? (a) turmeric powder (b) a dropper or spoon (c) yeast (d) lemon juice
33. 33.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the turmeric paper is kept the same. (a) True (b) False
34. 34.True or false: lemon juice is an acid. (a) False (b) True
35. 35.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) it turns blue (b) it stays yellow (c) it turns green (d) reddish-brown
36. 36.⚖️ 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 change it (c) we measure it
37. 37.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) turmeric powder (b) white paper strips (c) water (d) a magnet
38. 38.🍋 A reddish turmeric spot gets a few drops of lemon juice. What happens? (a) it turns yellow again (b) it turns darker red (c) it turns blue (d) it disappears
39. 39.🫧 Which of these is an acid? (a) detergent water (b) sugar water (c) baking soda water (d) lemon juice
40. 40.🧺 Which of these is not needed for the turmeric test? (a) a dropper or spoon (b) a battery cell (c) soap solution (d) water

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