Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 997 · 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) a mirror (b) turmeric powder (c) lemon juice (d) water
2. 2.True or false: white paper strips is needed for the turmeric test. (a) True (b) False
3. 3.🧺 Do we need a magnet for the turmeric test? (a) not needed (b) needed
4. 4.🔍 Which is the odd one out? (a) baking soda water (b) detergent water (c) soap solution (d) lemon juice
5. 5.🫧 Is lemon juice an acid, a base or neutral? (a) a base (b) an acid (c) neutral
6. 6.🟡 Which of these turns turmeric paper reddish-brown? (a) lemon juice (b) soap solution (c) vinegar (d) sugar water
7. 7.🛟 Which rule keeps the turmeric test safe? (a) mix bathroom cleaners (b) use only kitchen items (c) sniff each bottle hard (d) sip each liquid
8. 8.🧺 Which of these is needed for the turmeric test? (a) water (b) a mirror (c) a magnet (d) a comb
9. 9.🫧 Which of these is an acid? (a) baking soda water (b) sugar water (c) soap solution (d) orange juice
10. 10.🧺 Do we need a comb for the turmeric test? (a) needed (b) not needed
11. 11.📘 What do we call something that changes colour to show an acid or a base? (a) a pulley (b) a prism (c) an indicator (d) a magnet
12. 12.True or false: water is not needed for the turmeric test. (a) True (b) False
13. 13.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the liquid we test (b) the turmeric paper (c) the colour we see (d) the number of drops
14. 14.🫧 Is sugar water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
15. 15.🧺 Do we need a balloon for the turmeric test? (a) needed (b) not needed
16. 16.⚖️ 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
17. 17.🔍 Which is the odd one out? (a) baking soda water (b) detergent water (c) tamarind water (d) soap solution
18. 18.🟡 Turmeric paper meets detergent water. What happens? (a) turns reddish-brown (b) stays yellow
19. 19.🟡 Turmeric paper is dipped in soap solution. What colour does it turn? (a) green (b) it stays white (c) reddish-brown (d) bright blue
20. 20.🧺 Do we need lemon juice for the turmeric test? (a) not needed (b) needed
21. 21.🛟 Turmeric stains clothes. What should you wear? (a) a white party dress (b) your best clothes (c) your school uniform (d) an old shirt or apron
22. 22.🧺 Which of these is not needed for the turmeric test? (a) turmeric powder (b) a battery cell (c) white paper strips (d) water
23. 23.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the colour we see is the one thing we change. (a) True (b) False
24. 24.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) lemon juice (b) turmeric powder (c) a battery cell (d) white paper strips
25. 25.True or false: baking soda water is an acid. (a) True (b) False
26. 26.True or false: yeast is needed for the turmeric test. (a) False (b) True
27. 27.⚖️ 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
28. 28.True or false: vinegar is neutral. (a) False (b) True
29. 29.🧺 Do we need water for the turmeric test? (a) needed (b) not needed
30. 30.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) white paper strips (b) a comb (c) lemon juice (d) turmeric powder
31. 31.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the liquid we test”? (a) we change it (b) we measure it (c) we keep it the same
32. 32.🔍 Which is the odd one out? (a) lemon juice (b) vinegar (c) plain water (d) soap solution
33. 33.⚖️ 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 colour we see (c) the light we look in (d) the turmeric paper
34. 34.True or false: a balloon is not needed for the turmeric test. (a) False (b) True
35. 35.🧺 Which of these is needed for the turmeric test? (a) a mirror (b) a magnet (c) a balloon (d) white paper strips
36. 36.🟡 Turmeric paper meets vinegar. What happens? (a) turns reddish-brown (b) stays yellow
37. 37.🔮 Predict: a yellow curry stain on a shirt is washed with soap. What colour may it turn? (a) bright blue (b) green (c) reddish (d) white at once
38. 38.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the colour we see is what we measure. (a) False (b) True
39. 39.🫧 Which of these is an acid? (a) baking soda water (b) sugar water (c) vinegar (d) plain water
40. 40.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) yeast (b) white paper strips (c) turmeric powder (d) water

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