Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 669 · 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.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) it turns green (b) it turns blue (c) reddish-brown (d) it stays yellow
2. 2.🟡 Which of these turns turmeric reddish-brown? (a) vinegar (b) plain water (c) salt water (d) soap solution
3. 3.🟡 Turmeric paper meets soap solution. What happens? (a) stays yellow (b) turns reddish-brown
4. 4.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the liquid we test (b) the colour we see (c) the turmeric paper (d) the light we look in
5. 5.🟡 Which of these turns turmeric paper reddish-brown? (a) sugar water (b) lemon juice (c) soap solution (d) vinegar
6. 6.True or false: orange juice is an acid. (a) True (b) False
7. 7.True or false: a magnet is needed for the turmeric test. (a) False (b) True
8. 8.True or false: yeast is needed for the turmeric test. (a) False (b) True
9. 9.🟡 Turmeric paper meets salt water. What happens? (a) stays yellow (b) turns reddish-brown
10. 10.🟡 Which of these turns turmeric reddish-brown? (a) sugar water (b) vinegar (c) baking soda water (d) tamarind water
11. 11.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the colour we see”? (a) we change it (b) we measure it (c) we keep it the same
12. 12.True or false: detergent water is a base. (a) False (b) True
13. 13.🧺 Do we need turmeric powder for the turmeric test? (a) not needed (b) needed
14. 14.🛟 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
15. 15.🔮 Predict: turmeric paper is dipped in salt water. What happens? (a) it turns red (b) it turns black (c) it turns blue (d) it stays yellow
16. 16.🟡 Turmeric paper is dipped in soap solution. What colour does it turn? (a) it stays white (b) reddish-brown (c) bright blue (d) green
17. 17.True or false: a battery cell is needed for the turmeric test. (a) True (b) False
18. 18.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is the one thing we change? (a) the turmeric paper (b) the liquid we test (c) the light we look in (d) the colour we see
19. 19.🛟 Turmeric stains clothes. What should you wear? (a) your best clothes (b) your school uniform (c) a white party dress (d) an old shirt or apron
20. 20.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) turmeric powder (b) soap solution (c) a battery cell (d) white paper strips
21. 21.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the liquid we test is what we measure. (a) False (b) True
22. 22.🔍 Which is the odd one out? (a) detergent water (b) baking soda water (c) plain water (d) soap solution
23. 23.🟡 Turmeric paper meets baking soda water. What happens? (a) turns reddish-brown (b) stays yellow
24. 24.🧺 Which of these is not needed for the turmeric test? (a) soap solution (b) lemon juice (c) yeast (d) a dropper or spoon
25. 25.🧺 Do we need a dropper or spoon for the turmeric test? (a) needed (b) not needed
26. 26.🔍 Which is the odd one out? (a) plain water (b) baking soda water (c) sugar water (d) tamarind water
27. 27.🫧 Which of these is an acid? (a) detergent water (b) plain water (c) tamarind water (d) baking soda water
28. 28.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) lemon juice (b) water (c) turmeric powder (d) a balloon
29. 29.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the number of drops”? (a) we change it (b) we keep it the same (c) we measure it
30. 30.🧺 Which of these is needed for the turmeric test? (a) a mirror (b) a comb (c) a battery cell (d) a dropper or spoon
31. 31.📘 What do we call something that changes colour to show an acid or a base? (a) an indicator (b) a magnet (c) a pulley (d) a prism
32. 32.🟡 Turmeric paper meets sugar water. What happens? (a) turns reddish-brown (b) stays yellow
33. 33.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a dropper or spoon (b) lemon juice (c) turmeric powder (d) a mirror
34. 34.🔍 Which is the odd one out? (a) plain water (b) detergent water (c) tamarind water (d) lemon juice
35. 35.⚖️ 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 light we look in
36. 36.🫧 Which of these is neutral? (a) salt water (b) orange juice (c) detergent water (d) soap solution
37. 37.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the liquid we test”? (a) we measure it (b) we change it (c) we keep it the same
38. 38.🧺 Do we need a battery cell for the turmeric test? (a) needed (b) not needed
39. 39.🫧 Is curd an acid, a base or neutral? (a) neutral (b) a base (c) an acid
40. 40.🟡 Which of these keeps turmeric yellow? (a) baking soda water (b) salt water (c) soap solution (d) detergent water

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