Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 788 · 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) your school uniform (c) an old shirt or apron (d) your best clothes
2. 2.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a dropper or spoon (b) water (c) a comb (d) turmeric powder
3. 3.🟡 Turmeric paper meets baking soda water. What happens? (a) stays yellow (b) turns reddish-brown
4. 4.🟡 Turmeric paper meets detergent water. What happens? (a) stays yellow (b) turns reddish-brown
5. 5.🛟 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
6. 6.True or false: soap solution keeps turmeric yellow. (a) False (b) True
7. 7.🫧 Which of these is neutral? (a) plain water (b) baking soda water (c) lemon juice (d) detergent water
8. 8.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the number of drops”? (a) we change it (b) we keep it the same (c) we measure it
9. 9.🔮 Predict: a yellow curry stain on a shirt is washed with soap. What colour may it turn? (a) bright blue (b) white at once (c) green (d) reddish
10. 10.🧺 Which of these is needed for the turmeric test? (a) a comb (b) soap solution (c) a magnet (d) yeast
11. 11.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) turmeric powder (b) white paper strips (c) yeast (d) lemon juice
12. 12.True or false: soap solution is an acid. (a) False (b) True
13. 13.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the turmeric paper”? (a) we measure it (b) we keep it the same (c) we change it
14. 14.🧺 Which of these is not needed for the turmeric test? (a) water (b) a magnet (c) a dropper or spoon (d) soap solution
15. 15.🧺 Do we need a dropper or spoon for the turmeric test? (a) not needed (b) needed
16. 16.🟡 Turmeric paper meets tamarind water. What happens? (a) turns reddish-brown (b) stays yellow
17. 17.🫧 Is plain water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
18. 18.🟡 Which of these keeps turmeric yellow? (a) detergent water (b) baking soda water (c) soap solution (d) vinegar
19. 19.🧺 Do we need a magnet for the turmeric test? (a) needed (b) not needed
20. 20.True or false: water is needed for the turmeric test. (a) False (b) True
21. 21.🟡 Which of these turns turmeric reddish-brown? (a) lemon juice (b) plain water (c) soap solution (d) sugar water
22. 22.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) soap solution (b) white paper strips (c) turmeric powder (d) a mirror
23. 23.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the number of drops (b) the light we look in (c) the liquid we test (d) the colour we see
24. 24.True or false: salt water keeps turmeric yellow. (a) True (b) False
25. 25.🔮 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
26. 26.🟡 Which of these turns turmeric reddish-brown? (a) vinegar (b) lemon juice (c) baking soda water (d) tamarind water
27. 27.🧺 Do we need lemon juice for the turmeric test? (a) not needed (b) needed
28. 28.True or false: orange juice is an acid. (a) True (b) False
29. 29.🧺 Do we need a balloon for the turmeric test? (a) not needed (b) needed
30. 30.🧺 Which of these is needed for the turmeric test? (a) yeast (b) lemon juice (c) a mirror (d) a battery cell
31. 31.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the turmeric paper (b) the liquid we test (c) the colour we see
32. 32.True or false: vinegar is neutral. (a) True (b) False
33. 33.🟡 Which of these keeps turmeric yellow? (a) baking soda water (b) soap solution (c) detergent water (d) tamarind water
34. 34.🫧 Is salt water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
35. 35.🔮 Predict: turmeric paper is dipped in salt water. What happens? (a) it turns blue (b) it turns black (c) it turns red (d) it stays yellow
36. 36.📘 What do we call something that changes colour to show an acid or a base? (a) a pulley (b) a magnet (c) a prism (d) an indicator
37. 37.🧺 Which of these is needed for the turmeric test? (a) a comb (b) a balloon (c) a magnet (d) water
38. 38.🟡 Turmeric paper is dipped in soap solution. What colour does it turn? (a) bright blue (b) reddish-brown (c) green (d) it stays white
39. 39.🧺 Which of these is not needed for the turmeric test? (a) white paper strips (b) turmeric powder (c) a mirror (d) soap solution
40. 40.⚖️ 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

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