Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 383 · 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) use only kitchen items (c) sip each liquid (d) mix bathroom cleaners
2. 2.⚖️ 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
3. 3.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a dropper or spoon (b) soap solution (c) yeast (d) water
4. 4.🔍 Which is the odd one out? (a) soap solution (b) sugar water (c) detergent water (d) baking soda water
5. 5.🧺 Which of these is not needed for the turmeric test? (a) turmeric powder (b) soap solution (c) yeast (d) white paper strips
6. 6.🫧 Which of these is an acid? (a) soap solution (b) baking soda water (c) salt water (d) lemon juice
7. 7.🍋 A drop of lemon juice falls on turmeric paper. What happens? (a) it turns blue (b) it turns black (c) it turns red (d) it stays yellow
8. 8.🟡 Turmeric paper meets detergent water. What happens? (a) stays yellow (b) turns reddish-brown
9. 9.⚖️ 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
10. 10.🫧 Which of these is a base? (a) vinegar (b) tamarind water (c) curd (d) soap solution
11. 11.🔍 Which is the odd one out? (a) salt water (b) baking soda water (c) soap solution (d) detergent water
12. 12.True or false: lemon juice turns turmeric reddish-brown. (a) True (b) False
13. 13.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) it turns blue (b) it turns green (c) reddish-brown (d) it stays yellow
14. 14.True or false: plain water is neutral. (a) True (b) False
15. 15.🫧 Is lemon juice an acid, a base or neutral? (a) an acid (b) a base (c) neutral
16. 16.🟡 Turmeric paper meets vinegar. What happens? (a) stays yellow (b) turns reddish-brown
17. 17.🟡 Which of these keeps turmeric yellow? (a) detergent water (b) baking soda water (c) soap solution (d) tamarind water
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 change it (c) we measure it
19. 19.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the number of drops”? (a) we measure it (b) we change it (c) we keep it the same
20. 20.🧺 Do we need water for the turmeric test? (a) not needed (b) needed
21. 21.🧺 Which of these is needed for the turmeric test? (a) a comb (b) a mirror (c) white paper strips (d) a magnet
22. 22.True or false: tamarind water is an acid. (a) True (b) False
23. 23.🛟 Turmeric stains clothes. What should you wear? (a) your best clothes (b) a white party dress (c) an old shirt or apron (d) your school uniform
24. 24.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a magnet (b) white paper strips (c) a dropper or spoon (d) turmeric powder
25. 25.🔮 Predict: a yellow curry stain on a shirt is washed with soap. What colour may it turn? (a) green (b) white at once (c) reddish (d) bright blue
26. 26.🧺 Which of these is needed for the turmeric test? (a) a magnet (b) a mirror (c) water (d) a comb
27. 27.⚖️ 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 colour we see (d) the turmeric paper
28. 28.🫧 Which of these is neutral? (a) orange juice (b) plain water (c) vinegar (d) baking soda water
29. 29.True or false: soap solution keeps turmeric yellow. (a) False (b) True
30. 30.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the colour we see”? (a) we measure it (b) we keep it the same (c) we change it
31. 31.🧺 Which of these is needed for the turmeric test? (a) a mirror (b) a balloon (c) a comb (d) a dropper or spoon
32. 32.True or false: vinegar keeps turmeric yellow. (a) False (b) True
33. 33.True or false: lemon juice is not needed for the turmeric test. (a) True (b) False
34. 34.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is the one thing we change? (a) the light we look in (b) the turmeric paper (c) the number of drops (d) the liquid we test
35. 35.True or false: baking soda water keeps turmeric yellow. (a) True (b) False
36. 36.⚖️ 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
37. 37.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) water (b) soap solution (c) a comb (d) lemon juice
38. 38.🟡 Which of these turns turmeric reddish-brown? (a) tamarind water (b) lemon juice (c) soap solution (d) sugar water
39. 39.🔍 Which is the odd one out? (a) vinegar (b) detergent water (c) plain water (d) sugar water
40. 40.True or false: detergent water is an acid. (a) True (b) False

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