Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 460 · 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.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) white paper strips (b) a comb (c) turmeric powder (d) a dropper or spoon
2. 2.⚖️ 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 measure it (c) we change it
3. 3.🧺 Do we need a magnet for the turmeric test? (a) not needed (b) needed
4. 4.🟡 Turmeric paper meets plain water. What happens? (a) stays yellow (b) turns reddish-brown
5. 5.🧺 Which of these is not needed for the turmeric test? (a) soap solution (b) lemon juice (c) white paper strips (d) yeast
6. 6.🧺 Do we need soap solution for the turmeric test? (a) needed (b) not needed
7. 7.🫧 Which of these is an acid? (a) sugar water (b) salt water (c) vinegar (d) baking soda water
8. 8.🟡 Which of these turns turmeric reddish-brown? (a) lemon juice (b) soap solution (c) salt water (d) vinegar
9. 9.🧺 Do we need a balloon for the turmeric test? (a) not needed (b) needed
10. 10.🧺 Which of these is not needed for the turmeric test? (a) white paper strips (b) a magnet (c) a dropper or spoon (d) lemon juice
11. 11.True or false: salt water is an acid. (a) True (b) False
12. 12.🫧 Is orange juice an acid, a base or neutral? (a) an acid (b) neutral (c) a base
13. 13.🔮 Predict: turmeric paper is dipped in salt water. What happens? (a) it turns black (b) it turns red (c) it turns blue (d) it stays yellow
14. 14.🧺 Which of these is not needed for the turmeric test? (a) water (b) lemon juice (c) white paper strips (d) a mirror
15. 15.🛟 Turmeric stains clothes. What should you wear? (a) your best clothes (b) an old shirt or apron (c) your school uniform (d) a white party dress
16. 16.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the colour we see is kept the same. (a) True (b) False
17. 17.True or false: baking soda water keeps turmeric yellow. (a) True (b) False
18. 18.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the colour we see (b) the liquid we test (c) the turmeric paper
19. 19.🛟 Which rule keeps the turmeric test safe? (a) sip each liquid (b) mix bathroom cleaners (c) sniff each bottle hard (d) use only kitchen items
20. 20.🔍 Which is the odd one out? (a) tamarind water (b) sugar water (c) lemon juice (d) detergent water
21. 21.🟡 Turmeric paper meets salt water. What happens? (a) turns reddish-brown (b) stays yellow
22. 22.🟡 Which of these keeps turmeric yellow? (a) baking soda water (b) salt water (c) soap solution (d) detergent water
23. 23.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the turmeric paper”? (a) we change it (b) we measure it (c) we keep it the same
24. 24.🫧 Is vinegar an acid, a base or neutral? (a) a base (b) an acid (c) neutral
25. 25.🟡 Turmeric paper is dipped in soap solution. What colour does it turn? (a) reddish-brown (b) it stays white (c) green (d) bright blue
26. 26.🧺 Which of these is needed for the turmeric test? (a) turmeric powder (b) a magnet (c) a comb (d) yeast
27. 27.🔍 Which is the odd one out? (a) detergent water (b) soap solution (c) baking soda water (d) tamarind water
28. 28.🧺 Do we need turmeric powder for the turmeric test? (a) not needed (b) needed
29. 29.⚖️ 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
30. 30.⚖️ 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
31. 31.True or false: soap solution is a base. (a) False (b) True
32. 32.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) it turns green (b) reddish-brown (c) it turns blue (d) it stays yellow
33. 33.🍋 A drop of lemon juice falls on turmeric paper. What happens? (a) it turns black (b) it turns blue (c) it stays yellow (d) it turns red
34. 34.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) lemon juice (b) white paper strips (c) turmeric powder (d) a balloon
35. 35.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the light we look in”? (a) we keep it the same (b) we change it (c) we measure it
36. 36.True or false: plain water turns turmeric reddish-brown. (a) True (b) False
37. 37.🟡 Which of these keeps turmeric yellow? (a) baking soda water (b) tamarind water (c) detergent water (d) soap solution
38. 38.True or false: lemon juice keeps turmeric yellow. (a) False (b) True
39. 39.🧺 Which of these is not needed for the turmeric test? (a) a balloon (b) lemon juice (c) a dropper or spoon (d) water
40. 40.🫧 Which of these is an acid? (a) soap solution (b) sugar water (c) detergent water (d) orange juice

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