Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 585 · 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.🟡 Turmeric paper meets salt water. What happens? (a) stays yellow (b) turns reddish-brown
2. 2.🛟 Turmeric stains clothes. What should you wear? (a) your school uniform (b) an old shirt or apron (c) your best clothes (d) a white party dress
3. 3.True or false: salt water keeps turmeric yellow. (a) True (b) False
4. 4.True or false: baking soda water turns turmeric reddish-brown. (a) True (b) False
5. 5.⚖️ 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
6. 6.🟡 Which of these turns turmeric reddish-brown? (a) salt water (b) detergent water (c) lemon juice (d) sugar water
7. 7.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) turmeric powder (b) soap solution (c) lemon juice (d) a magnet
8. 8.🫧 Which of these is a base? (a) orange juice (b) baking soda water (c) curd (d) lemon juice
9. 9.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) white paper strips (b) turmeric powder (c) a balloon (d) water
10. 10.🧺 Which of these is not needed for the turmeric test? (a) a comb (b) lemon juice (c) water (d) soap solution
11. 11.🛟 Which rule keeps the turmeric test safe? (a) mix bathroom cleaners (b) sip each liquid (c) sniff each bottle hard (d) use only kitchen items
12. 12.📘 What do we call something that changes colour to show an acid or a base? (a) a magnet (b) a pulley (c) a prism (d) an indicator
13. 13.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the light we look in”? (a) we measure it (b) we change it (c) we keep it the same
14. 14.True or false: sugar water turns turmeric reddish-brown. (a) False (b) True
15. 15.🫧 Is detergent water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
16. 16.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the number of drops is what we measure. (a) False (b) True
17. 17.🟡 Turmeric paper is dipped in soap solution. What colour does it turn? (a) it stays white (b) bright blue (c) green (d) reddish-brown
18. 18.🧺 Which of these is not needed for the turmeric test? (a) lemon juice (b) a dropper or spoon (c) white paper strips (d) a magnet
19. 19.🟡 Which of these keeps turmeric yellow? (a) baking soda water (b) sugar water (c) soap solution (d) detergent water
20. 20.True or false: tamarind water turns turmeric reddish-brown. (a) True (b) False
21. 21.⚖️ 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
22. 22.🔍 Which is the odd one out? (a) soap solution (b) tamarind water (c) baking soda water (d) detergent water
23. 23.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is the one thing we change? (a) the number of drops (b) the colour we see (c) the light we look in (d) the liquid we test
24. 24.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the turmeric paper is what we measure. (a) False (b) True
25. 25.🔍 Which is the odd one out? (a) soap solution (b) detergent water (c) baking soda water (d) lemon juice
26. 26.🧺 Do we need a dropper or spoon for the turmeric test? (a) needed (b) not needed
27. 27.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) water (b) a comb (c) turmeric powder (d) lemon juice
28. 28.True or false: white paper strips is not needed for the turmeric test. (a) True (b) False
29. 29.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) water (b) yeast (c) white paper strips (d) turmeric powder
30. 30.🟡 Turmeric paper meets vinegar. What happens? (a) stays yellow (b) turns reddish-brown
31. 31.True or false: water is needed for the turmeric test. (a) False (b) True
32. 32.True or false: lemon juice is neutral. (a) True (b) False
33. 33.🫧 Which of these is an acid? (a) salt water (b) baking soda water (c) tamarind water (d) sugar water
34. 34.🔍 Which is the odd one out? (a) salt water (b) lemon juice (c) vinegar (d) soap solution
35. 35.🫧 Which of these is a base? (a) orange juice (b) soap solution (c) sugar water (d) tamarind water
36. 36.🟡 Turmeric paper meets detergent water. What happens? (a) turns reddish-brown (b) stays yellow
37. 37.True or false: sugar water keeps turmeric yellow. (a) False (b) True
38. 38.🫧 Which of these is an acid? (a) salt water (b) vinegar (c) soap solution (d) baking soda water
39. 39.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the number of drops is kept the same. (a) True (b) False
40. 40.🔍 Which is the odd one out? (a) vinegar (b) baking soda water (c) detergent water (d) soap solution

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