Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 929 · 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.📘 What do we call something that changes colour to show an acid or a base? (a) a magnet (b) a prism (c) an indicator (d) a pulley
2. 2.🛟 Turmeric stains clothes. What should you wear? (a) an old shirt or apron (b) your school uniform (c) a white party dress (d) your best clothes
3. 3.🛟 Which rule keeps the turmeric test safe? (a) mix bathroom cleaners (b) sniff each bottle hard (c) sip each liquid (d) use only kitchen items
4. 4.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the light we look in”? (a) we change it (b) we keep it the same (c) we measure it
5. 5.🟡 Which of these keeps turmeric yellow? (a) vinegar (b) soap solution (c) baking soda water (d) detergent water
6. 6.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the turmeric paper is the one thing we change. (a) True (b) False
7. 7.🔍 Which is the odd one out? (a) soap solution (b) tamarind water (c) baking soda water (d) detergent water
8. 8.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) soap solution (b) yeast (c) white paper strips (d) turmeric powder
9. 9.True or false: salt water is neutral. (a) False (b) True
10. 10.⚖️ 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
11. 11.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the liquid we test (b) the colour we see (c) the number of drops
12. 12.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a magnet (b) soap solution (c) white paper strips (d) a dropper or spoon
13. 13.🟡 Turmeric paper meets sugar water. What happens? (a) stays yellow (b) turns reddish-brown
14. 14.🫧 Is vinegar an acid, a base or neutral? (a) a base (b) an acid (c) neutral
15. 15.🧺 Which of these is needed for the turmeric test? (a) a magnet (b) a balloon (c) yeast (d) soap solution
16. 16.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the light we look in is what we measure. (a) False (b) True
17. 17.🔮 Predict: turmeric paper is dipped in salt water. What happens? (a) it turns red (b) it turns black (c) it stays yellow (d) it turns blue
18. 18.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the colour we see is the one thing we change. (a) False (b) True
19. 19.True or false: tamarind water keeps turmeric yellow. (a) False (b) True
20. 20.⚖️ 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
21. 21.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) it stays yellow (b) reddish-brown (c) it turns green (d) it turns blue
22. 22.True or false: white paper strips is not needed for the turmeric test. (a) True (b) False
23. 23.🫧 Is baking soda water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
24. 24.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) white paper strips (b) water (c) a balloon (d) turmeric powder
25. 25.🔍 Which is the odd one out? (a) lemon juice (b) salt water (c) vinegar (d) detergent water
26. 26.🔍 Which is the odd one out? (a) soap solution (b) detergent water (c) salt water (d) baking soda water
27. 27.🧺 Which of these is needed for the turmeric test? (a) a battery cell (b) lemon juice (c) yeast (d) a magnet
28. 28.🧺 Do we need soap solution for the turmeric test? (a) not needed (b) needed
29. 29.🟡 Which of these turns turmeric paper reddish-brown? (a) sugar water (b) soap solution (c) vinegar (d) lemon juice
30. 30.🔍 Which is the odd one out? (a) sugar water (b) plain water (c) baking soda water (d) lemon juice
31. 31.True or false: detergent water is a base. (a) False (b) True
32. 32.🧺 Do we need turmeric powder for the turmeric test? (a) needed (b) not needed
33. 33.🟡 Turmeric paper meets tamarind water. What happens? (a) stays yellow (b) turns reddish-brown
34. 34.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the light we look in (b) the turmeric paper (c) the number of drops (d) the colour we see
35. 35.🫧 Is plain water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
36. 36.🧺 Do we need a battery cell for the turmeric test? (a) needed (b) not needed
37. 37.🫧 Which of these is an acid? (a) lemon juice (b) baking soda water (c) detergent water (d) soap solution
38. 38.🫧 Is sugar water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
39. 39.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is the one thing we change? (a) the liquid we test (b) the turmeric paper (c) the number of drops (d) the colour we see
40. 40.True or false: sugar water keeps turmeric yellow. (a) True (b) False

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