Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 130 · 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.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the number of drops is what we measure. (a) False (b) True
2. 2.📘 What do we call something that changes colour to show an acid or a base? (a) a magnet (b) a pulley (c) an indicator (d) a prism
3. 3.🧺 Do we need yeast for the turmeric test? (a) needed (b) not needed
4. 4.🔍 Which is the odd one out? (a) soap solution (b) salt water (c) baking soda water (d) detergent water
5. 5.🔍 Which is the odd one out? (a) detergent water (b) tamarind water (c) soap solution (d) baking soda water
6. 6.🛟 Which rule keeps the turmeric test safe? (a) sniff each bottle hard (b) mix bathroom cleaners (c) sip each liquid (d) use only kitchen items
7. 7.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the turmeric paper is what we measure. (a) False (b) True
8. 8.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) white paper strips (b) lemon juice (c) a comb (d) a dropper or spoon
9. 9.🧺 Do we need a magnet for the turmeric test? (a) not needed (b) needed
10. 10.True or false: soap solution keeps turmeric yellow. (a) False (b) True
11. 11.🧺 Do we need water for the turmeric test? (a) needed (b) not needed
12. 12.🧺 Do we need a balloon for the turmeric test? (a) not needed (b) needed
13. 13.True or false: soap solution turns turmeric reddish-brown. (a) True (b) False
14. 14.🔮 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
15. 15.🔮 Predict: a yellow curry stain on a shirt is washed with soap. What colour may it turn? (a) green (b) white at once (c) reddish (d) bright blue
16. 16.🧺 Do we need a mirror for the turmeric test? (a) needed (b) not needed
17. 17.True or false: lemon juice is not needed for the turmeric test. (a) False (b) True
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 colour we see (d) the number of drops
19. 19.True or false: tamarind water is an acid. (a) False (b) True
20. 20.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the number of drops is kept the same. (a) True (b) False
21. 21.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a balloon (b) water (c) white paper strips (d) soap solution
22. 22.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a magnet (b) turmeric powder (c) a dropper or spoon (d) water
23. 23.🟡 Which of these turns turmeric reddish-brown? (a) vinegar (b) lemon juice (c) baking soda water (d) sugar water
24. 24.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the light we look in is kept the same. (a) False (b) True
25. 25.🟡 Turmeric paper is dipped in soap solution. What colour does it turn? (a) green (b) it stays white (c) reddish-brown (d) bright blue
26. 26.True or false: a dropper or spoon is not needed for the turmeric test. (a) True (b) False
27. 27.🧺 Do we need soap solution for the turmeric test? (a) needed (b) not needed
28. 28.🧺 Which of these is not needed for the turmeric test? (a) turmeric powder (b) lemon juice (c) a mirror (d) a dropper or spoon
29. 29.⚖️ 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 turmeric paper
30. 30.🫧 Is sugar water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
31. 31.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the number of drops”? (a) we measure it (b) we keep it the same (c) we change it
32. 32.🛟 Turmeric stains clothes. What should you wear? (a) a white party dress (b) your best clothes (c) an old shirt or apron (d) your school uniform
33. 33.🫧 Which of these is a base? (a) tamarind water (b) lemon juice (c) vinegar (d) baking soda water
34. 34.⚖️ 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
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.🫧 Is salt water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
37. 37.🫧 Is tamarind water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
38. 38.True or false: water is not needed for the turmeric test. (a) True (b) False
39. 39.🔍 Which is the odd one out? (a) salt water (b) baking soda water (c) lemon juice (d) tamarind water
40. 40.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the turmeric paper (b) the light we look in (c) the colour we see (d) the liquid we test

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