Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 759 · 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? Which of these is the one thing we change? (a) the number of drops (b) the colour we see (c) the turmeric paper (d) the liquid we test
2. 2.🟡 Which of these turns turmeric reddish-brown? (a) vinegar (b) lemon juice (c) detergent water (d) salt water
3. 3.🟡 Turmeric paper meets baking soda water. What happens? (a) stays yellow (b) turns reddish-brown
4. 4.True or false: a mirror is not needed for the turmeric test. (a) True (b) False
5. 5.🧺 Which of these is not needed for the turmeric test? (a) water (b) soap solution (c) a magnet (d) white paper strips
6. 6.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the light we look in is what we measure. (a) False (b) True
7. 7.⚖️ 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
8. 8.True or false: white paper strips is needed for the turmeric test. (a) True (b) False
9. 9.🧺 Do we need soap solution for the turmeric test? (a) not needed (b) needed
10. 10.🫧 Which of these is neutral? (a) soap solution (b) vinegar (c) salt water (d) baking soda water
11. 11.🔍 Which is the odd one out? (a) baking soda water (b) soap solution (c) lemon juice (d) detergent water
12. 12.True or false: a comb is needed for the turmeric test. (a) True (b) False
13. 13.🧺 Do we need a battery cell for the turmeric test? (a) not needed (b) needed
14. 14.📘 What do we call something that changes colour to show an acid or a base? (a) a magnet (b) a prism (c) a pulley (d) an indicator
15. 15.🟡 Why does soap solution change turmeric’s colour? (a) soap is magnetic (b) soap is hot (c) soap is an acid (d) soap water is a base
16. 16.🧺 Which of these is needed for the turmeric test? (a) a magnet (b) a balloon (c) a dropper or spoon (d) a battery cell
17. 17.🔮 Predict: turmeric paper is dipped in salt water. What happens? (a) it turns blue (b) it stays yellow (c) it turns red (d) it turns black
18. 18.True or false: tamarind water keeps turmeric yellow. (a) False (b) True
19. 19.🧺 Do we need a dropper or spoon for the turmeric test? (a) needed (b) not needed
20. 20.🧺 Do we need a mirror for the turmeric test? (a) needed (b) not needed
21. 21.⚖️ 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 number of drops
22. 22.🧺 Which of these is needed for the turmeric test? (a) a battery cell (b) a mirror (c) a balloon (d) lemon juice
23. 23.True or false: salt water turns turmeric reddish-brown. (a) True (b) False
24. 24.🟡 Which of these turns turmeric paper reddish-brown? (a) lemon juice (b) soap solution (c) sugar water (d) vinegar
25. 25.🛟 Which rule keeps the turmeric test safe? (a) sniff each bottle hard (b) mix bathroom cleaners (c) use only kitchen items (d) sip each liquid
26. 26.True or false: sugar water turns turmeric reddish-brown. (a) True (b) False
27. 27.True or false: soap solution keeps turmeric yellow. (a) False (b) True
28. 28.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the colour we see”? (a) we change it (b) we keep it the same (c) we measure it
29. 29.🔍 Which is the odd one out? (a) detergent water (b) baking soda water (c) tamarind water (d) soap solution
30. 30.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the colour we see is the one thing we change. (a) True (b) False
31. 31.True or false: a battery cell is needed for the turmeric test. (a) False (b) True
32. 32.True or false: white paper strips is not needed for the turmeric test. (a) True (b) False
33. 33.🍋 A drop of lemon juice falls on turmeric paper. What happens? (a) it turns black (b) it stays yellow (c) it turns red (d) it turns blue
34. 34.True or false: sugar water keeps turmeric yellow. (a) False (b) True
35. 35.🧺 Which of these is needed for the turmeric test? (a) a magnet (b) a battery cell (c) a mirror (d) white paper strips
36. 36.⚖️ 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
37. 37.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) it turns blue (b) it stays yellow (c) it turns green (d) reddish-brown
38. 38.⚖️ 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
39. 39.🟡 Which of these keeps turmeric yellow? (a) soap solution (b) lemon juice (c) detergent water (d) baking soda water
40. 40.🔮 Predict: a yellow curry stain on a shirt is washed with soap. What colour may it turn? (a) reddish (b) green (c) white at once (d) bright blue

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