Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 992 · 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 rule keeps the turmeric test safe? (a) sniff each bottle hard (b) sip each liquid (c) use only kitchen items (d) mix bathroom cleaners
2. 2.🟡 Which of these keeps turmeric yellow? (a) baking soda water (b) plain water (c) soap solution (d) detergent water
3. 3.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the colour we see (b) the number of drops (c) the turmeric paper (d) the light we look in
4. 4.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a battery cell (b) water (c) white paper strips (d) soap solution
5. 5.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) it turns blue (b) reddish-brown (c) it turns green (d) it stays yellow
6. 6.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the liquid we test is what we measure. (a) True (b) False
7. 7.🟡 Which of these turns turmeric reddish-brown? (a) sugar water (b) vinegar (c) tamarind water (d) detergent water
8. 8.True or false: vinegar keeps turmeric yellow. (a) False (b) True
9. 9.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) white paper strips (b) a comb (c) soap solution (d) lemon juice
10. 10.True or false: yeast is not needed for the turmeric test. (a) False (b) True
11. 11.🔍 Which is the odd one out? (a) lemon juice (b) vinegar (c) salt water (d) detergent water
12. 12.🔍 Which is the odd one out? (a) vinegar (b) salt water (c) plain water (d) baking soda water
13. 13.True or false: tamarind water turns turmeric reddish-brown. (a) False (b) True
14. 14.🫧 Is curd an acid, a base or neutral? (a) neutral (b) an acid (c) a base
15. 15.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the colour we see (b) the number of drops (c) the liquid we test
16. 16.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) yeast (b) white paper strips (c) a dropper or spoon (d) lemon juice
17. 17.🧺 Which of these is needed for the turmeric test? (a) yeast (b) a mirror (c) white paper strips (d) a balloon
18. 18.⚖️ 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
19. 19.🟡 Turmeric paper meets detergent water. What happens? (a) stays yellow (b) turns reddish-brown
20. 20.🟡 Which of these turns turmeric reddish-brown? (a) tamarind water (b) soap solution (c) plain water (d) sugar water
21. 21.🫧 Which of these is an acid? (a) tamarind water (b) salt water (c) plain water (d) sugar water
22. 22.🫧 Is plain water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
23. 23.🧺 Which of these is not needed for the turmeric test? (a) white paper strips (b) a dropper or spoon (c) water (d) yeast
24. 24.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the number of drops”? (a) we measure it (b) we keep it the same (c) we change it
25. 25.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) lemon juice (b) water (c) white paper strips (d) a magnet
26. 26.🔮 Predict: a yellow curry stain on a shirt is washed with soap. What colour may it turn? (a) white at once (b) green (c) bright blue (d) reddish
27. 27.⚖️ 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 number of drops (c) the turmeric paper (d) the liquid we test
28. 28.True or false: soap solution turns turmeric reddish-brown. (a) True (b) False
29. 29.🧺 Do we need white paper strips for the turmeric test? (a) needed (b) not needed
30. 30.🛟 Turmeric stains clothes. What should you wear? (a) a white party dress (b) an old shirt or apron (c) your school uniform (d) your best clothes
31. 31.🫧 Which of these is a base? (a) vinegar (b) orange juice (c) baking soda water (d) salt water
32. 32.🟡 Which of these keeps turmeric yellow? (a) detergent water (b) soap solution (c) salt water (d) baking soda water
33. 33.🧺 Do we need a mirror for the turmeric test? (a) not needed (b) needed
34. 34.True or false: orange juice is neutral. (a) False (b) True
35. 35.🫧 Is lemon juice an acid, a base or neutral? (a) neutral (b) an acid (c) a base
36. 36.🫧 Which of these is an acid? (a) baking soda water (b) sugar water (c) salt water (d) orange juice
37. 37.🧺 Do we need a balloon for the turmeric test? (a) needed (b) not needed
38. 38.🔍 Which is the odd one out? (a) soap solution (b) baking soda water (c) detergent water (d) sugar water
39. 39.🔮 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
40. 40.🧺 Do we need lemon juice for the turmeric test? (a) not needed (b) needed

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