Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 675 · 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 salt water. What happens? (a) it turns red (b) it turns black (c) it turns blue (d) it stays yellow
2. 2.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is the one thing we change? (a) the turmeric paper (b) the light we look in (c) the colour we see (d) the liquid we test
3. 3.⚖️ 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
4. 4.🧺 Do we need water for the turmeric test? (a) needed (b) not needed
5. 5.🫧 Is plain water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
6. 6.🛟 Which rule keeps the turmeric test safe? (a) sniff each bottle hard (b) sip each liquid (c) mix bathroom cleaners (d) use only kitchen items
7. 7.True or false: detergent water turns turmeric reddish-brown. (a) True (b) False
8. 8.🧺 Which of these is not needed for the turmeric test? (a) a dropper or spoon (b) white paper strips (c) a mirror (d) water
9. 9.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) white paper strips (b) soap solution (c) a battery cell (d) turmeric powder
10. 10.📘 What do we call something that changes colour to show an acid or a base? (a) a prism (b) a pulley (c) a magnet (d) an indicator
11. 11.🧺 Which of these is not needed for the turmeric test? (a) turmeric powder (b) a dropper or spoon (c) water (d) a balloon
12. 12.🔍 Which is the odd one out? (a) baking soda water (b) plain water (c) soap solution (d) detergent water
13. 13.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the colour we see”? (a) we keep it the same (b) we change it (c) we measure it
14. 14.🔍 Which is the odd one out? (a) vinegar (b) soap solution (c) baking soda water (d) detergent water
15. 15.True or false: baking soda water turns turmeric reddish-brown. (a) False (b) True
16. 16.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the liquid we test is what we measure. (a) True (b) False
17. 17.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the colour we see (b) the number of drops (c) the light we look in (d) the liquid we test
18. 18.🟡 Which of these turns turmeric reddish-brown? (a) sugar water (b) vinegar (c) plain water (d) baking soda water
19. 19.True or false: detergent water is a base. (a) False (b) True
20. 20.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) white paper strips (b) turmeric powder (c) lemon juice (d) a mirror
21. 21.🟡 Turmeric paper is dipped in soap solution. What colour does it turn? (a) it stays white (b) bright blue (c) green (d) reddish-brown
22. 22.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) it stays yellow (b) reddish-brown (c) it turns green (d) it turns blue
23. 23.True or false: a balloon is needed for the turmeric test. (a) True (b) False
24. 24.🟡 Which of these turns turmeric paper reddish-brown? (a) vinegar (b) sugar water (c) lemon juice (d) soap solution
25. 25.True or false: lemon juice is not needed for the turmeric test. (a) False (b) True
26. 26.🟡 Which of these keeps turmeric yellow? (a) soap solution (b) baking soda water (c) detergent water (d) sugar water
27. 27.🧺 Do we need a dropper or spoon for the turmeric test? (a) needed (b) not needed
28. 28.⚖️ 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
29. 29.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a comb (b) white paper strips (c) turmeric powder (d) water
30. 30.True or false: soap solution turns turmeric reddish-brown. (a) False (b) True
31. 31.🧺 Do we need a balloon for the turmeric test? (a) not needed (b) needed
32. 32.🧺 Do we need soap solution for the turmeric test? (a) needed (b) not needed
33. 33.🛟 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
34. 34.True or false: a mirror is needed for the turmeric test. (a) True (b) False
35. 35.True or false: curd is neutral. (a) True (b) False
36. 36.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) lemon juice (b) white paper strips (c) a magnet (d) soap solution
37. 37.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the turmeric paper is kept the same. (a) True (b) False
38. 38.True or false: vinegar keeps turmeric yellow. (a) True (b) False
39. 39.True or false: detergent water is an acid. (a) True (b) False
40. 40.🧺 Do we need turmeric powder for the turmeric test? (a) not needed (b) needed

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