Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 823 · 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.True or false: lemon juice is neutral. (a) False (b) True
2. 2.🔍 Which is the odd one out? (a) soap solution (b) vinegar (c) sugar water (d) tamarind water
3. 3.🧺 Do we need a balloon for the turmeric test? (a) needed (b) not needed
4. 4.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) it stays yellow (b) it turns green (c) it turns blue (d) reddish-brown
5. 5.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a dropper or spoon (b) a magnet (c) turmeric powder (d) water
6. 6.🧺 Which of these is not needed for the turmeric test? (a) yeast (b) water (c) a dropper or spoon (d) turmeric powder
7. 7.🧺 Which of these is needed for the turmeric test? (a) water (b) yeast (c) a magnet (d) a mirror
8. 8.🫧 Is detergent water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
9. 9.True or false: white paper strips is needed for the turmeric test. (a) False (b) True
10. 10.🔍 Which is the odd one out? (a) plain water (b) vinegar (c) sugar water (d) detergent water
11. 11.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the colour we see (b) the liquid we test (c) the light we look in
12. 12.True or false: sugar water turns turmeric reddish-brown. (a) True (b) False
13. 13.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) water (b) lemon juice (c) a balloon (d) turmeric powder
14. 14.⚖️ 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 liquid we test (c) the number of drops (d) the colour we see
15. 15.🫧 Which of these is a base? (a) sugar water (b) orange juice (c) soap solution (d) curd
16. 16.🛟 Which rule keeps the turmeric test safe? (a) sip each liquid (b) mix bathroom cleaners (c) sniff each bottle hard (d) use only kitchen items
17. 17.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the number of drops is kept the same. (a) True (b) False
18. 18.🟡 Which of these turns turmeric paper reddish-brown? (a) sugar water (b) vinegar (c) soap solution (d) lemon juice
19. 19.🧺 Do we need a mirror for the turmeric test? (a) not needed (b) needed
20. 20.True or false: white paper strips is not needed for the turmeric test. (a) False (b) True
21. 21.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the number of drops is what we measure. (a) False (b) True
22. 22.🧺 Which of these is needed for the turmeric test? (a) yeast (b) lemon juice (c) a comb (d) a battery cell
23. 23.🫧 Is soap solution an acid, a base or neutral? (a) a base (b) neutral (c) an acid
24. 24.🧺 Do we need water for the turmeric test? (a) needed (b) not needed
25. 25.🫧 Which of these is an acid? (a) plain water (b) baking soda water (c) lemon juice (d) salt water
26. 26.True or false: soap solution is neutral. (a) True (b) False
27. 27.🟡 Which of these turns turmeric reddish-brown? (a) baking soda water (b) vinegar (c) sugar water (d) tamarind water
28. 28.⚖️ 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
29. 29.🟡 Turmeric paper meets detergent water. What happens? (a) turns reddish-brown (b) stays yellow
30. 30.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a battery cell (b) water (c) turmeric powder (d) white paper strips
31. 31.📘 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
32. 32.🍋 A reddish turmeric spot gets a few drops of lemon juice. What happens? (a) it turns yellow again (b) it turns blue (c) it turns darker red (d) it disappears
33. 33.🔍 Which is the odd one out? (a) soap solution (b) detergent water (c) lemon juice (d) baking soda water
34. 34.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the liquid we test is kept the same. (a) False (b) True
35. 35.True or false: lemon juice keeps turmeric yellow. (a) False (b) True
36. 36.True or false: vinegar turns turmeric reddish-brown. (a) False (b) True
37. 37.🫧 Is sugar water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
38. 38.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the number of drops (b) the liquid we test (c) the colour we see (d) the turmeric paper
39. 39.🧺 Which of these is needed for the turmeric test? (a) yeast (b) a battery cell (c) a comb (d) white paper strips
40. 40.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the light we look in”? (a) we keep it the same (b) we change it (c) we measure it

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