Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 684 · 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) use only kitchen items (b) sip each liquid (c) sniff each bottle hard (d) mix bathroom cleaners
2. 2.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the turmeric paper (b) the liquid we test (c) the light we look in (d) the colour we see
3. 3.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) water (b) soap solution (c) a battery cell (d) lemon juice
4. 4.🫧 Is lemon juice an acid, a base or neutral? (a) a base (b) neutral (c) an acid
5. 5.🛟 Turmeric stains clothes. What should you wear? (a) your school uniform (b) your best clothes (c) an old shirt or apron (d) a white party dress
6. 6.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the turmeric paper is kept the same. (a) True (b) False
7. 7.🧺 Do we need a magnet for the turmeric test? (a) not needed (b) needed
8. 8.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the liquid we test”? (a) we change it (b) we keep it the same (c) we measure it
9. 9.⚖️ 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 colour we see (d) the number of drops
10. 10.🧺 Which of these is needed for the turmeric test? (a) a battery cell (b) a dropper or spoon (c) a comb (d) a magnet
11. 11.🧺 Which of these is not needed for the turmeric test? (a) white paper strips (b) a comb (c) a dropper or spoon (d) lemon juice
12. 12.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the liquid we test is the one thing we change. (a) False (b) True
13. 13.🧺 Which of these is needed for the turmeric test? (a) turmeric powder (b) a magnet (c) a comb (d) a battery cell
14. 14.🔮 Predict: a yellow curry stain on a shirt is washed with soap. What colour may it turn? (a) reddish (b) bright blue (c) green (d) white at once
15. 15.🫧 Which of these is an acid? (a) vinegar (b) plain water (c) detergent water (d) sugar water
16. 16.🔍 Which is the odd one out? (a) baking soda water (b) detergent water (c) plain water (d) soap solution
17. 17.🧺 Do we need lemon juice for the turmeric test? (a) not needed (b) needed
18. 18.True or false: vinegar turns turmeric reddish-brown. (a) True (b) False
19. 19.🔍 Which is the odd one out? (a) salt water (b) detergent water (c) soap solution (d) baking soda water
20. 20.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) soap solution (b) a dropper or spoon (c) lemon juice (d) a comb
21. 21.🔍 Which is the odd one out? (a) detergent water (b) soap solution (c) baking soda water (d) vinegar
22. 22.⚖️ 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
23. 23.🍋 A drop of lemon juice falls on turmeric paper. What happens? (a) it turns black (b) it turns red (c) it turns blue (d) it stays yellow
24. 24.🟡 Turmeric paper meets soap solution. What happens? (a) stays yellow (b) turns reddish-brown
25. 25.🫧 Is orange juice an acid, a base or neutral? (a) a base (b) neutral (c) an acid
26. 26.🧺 Which of these is not needed for the turmeric test? (a) lemon juice (b) a magnet (c) white paper strips (d) water
27. 27.True or false: sugar water turns turmeric reddish-brown. (a) True (b) False
28. 28.🫧 Is detergent water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
29. 29.True or false: lemon juice is not needed for the turmeric test. (a) True (b) False
30. 30.🧺 Which of these is needed for the turmeric test? (a) a mirror (b) a comb (c) water (d) a battery cell
31. 31.🟡 Turmeric paper meets tamarind water. What happens? (a) stays yellow (b) turns reddish-brown
32. 32.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the number of drops is the one thing we change. (a) True (b) False
33. 33.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) water (b) a magnet (c) turmeric powder (d) white paper strips
34. 34.🟡 Which of these keeps turmeric yellow? (a) detergent water (b) salt water (c) soap solution (d) baking soda water
35. 35.🔍 Which is the odd one out? (a) soap solution (b) lemon juice (c) baking soda water (d) detergent water
36. 36.True or false: a magnet is not needed for the turmeric test. (a) False (b) True
37. 37.⚖️ 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
38. 38.🧺 Do we need yeast for the turmeric test? (a) not needed (b) needed
39. 39.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the colour we see is kept the same. (a) False (b) True
40. 40.📘 What do we call something that changes colour to show an acid or a base? (a) an indicator (b) a prism (c) a pulley (d) a magnet

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