Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 659 · 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 stains clothes. What should you wear? (a) an old shirt or apron (b) your school uniform (c) a white party dress (d) your best clothes
2. 2.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) turmeric powder (b) soap solution (c) a balloon (d) water
3. 3.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) turmeric powder (b) white paper strips (c) a battery cell (d) soap solution
4. 4.🛟 Which rule keeps the turmeric test safe? (a) sip each liquid (b) mix bathroom cleaners (c) sniff each bottle hard (d) use only kitchen items
5. 5.📘 What do we call something that changes colour to show an acid or a base? (a) a magnet (b) a prism (c) an indicator (d) a pulley
6. 6.True or false: baking soda water is neutral. (a) False (b) True
7. 7.🟡 Why does soap solution change turmeric’s colour? (a) soap is an acid (b) soap water is a base (c) soap is hot (d) soap is magnetic
8. 8.🔮 Predict: a yellow curry stain on a shirt is washed with soap. What colour may it turn? (a) white at once (b) reddish (c) bright blue (d) green
9. 9.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) water (b) turmeric powder (c) soap solution (d) a magnet
10. 10.🟡 Turmeric paper meets salt water. What happens? (a) turns reddish-brown (b) stays yellow
11. 11.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the number of drops”? (a) we change it (b) we measure it (c) we keep it the same
12. 12.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the turmeric paper is what we measure. (a) False (b) True
13. 13.🫧 Is lemon juice an acid, a base or neutral? (a) an acid (b) a base (c) neutral
14. 14.🧺 Which of these is not needed for the turmeric test? (a) a dropper or spoon (b) turmeric powder (c) a magnet (d) water
15. 15.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the turmeric paper is the one thing we change. (a) True (b) False
16. 16.🧺 Which of these is not needed for the turmeric test? (a) yeast (b) water (c) lemon juice (d) white paper strips
17. 17.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the liquid we test is what we measure. (a) False (b) True
18. 18.🫧 Which of these is a base? (a) baking soda water (b) vinegar (c) salt water (d) sugar water
19. 19.🧺 Which of these is needed for the turmeric test? (a) a magnet (b) a mirror (c) turmeric powder (d) a battery cell
20. 20.🧺 Which of these is not needed for the turmeric test? (a) lemon juice (b) turmeric powder (c) a comb (d) water
21. 21.🫧 Is orange juice an acid, a base or neutral? (a) a base (b) an acid (c) neutral
22. 22.True or false: a battery cell is not needed for the turmeric test. (a) True (b) False
23. 23.🔍 Which is the odd one out? (a) salt water (b) lemon juice (c) tamarind water (d) detergent water
24. 24.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the colour we see (b) the light we look in (c) the liquid we test
25. 25.🧺 Do we need turmeric powder for the turmeric test? (a) not needed (b) needed
26. 26.🫧 Is curd an acid, a base or neutral? (a) neutral (b) an acid (c) a base
27. 27.🫧 Is sugar water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
28. 28.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is the one thing we change? (a) the colour we see (b) the turmeric paper (c) the liquid we test (d) the number of drops
29. 29.True or false: a balloon is needed for the turmeric test. (a) True (b) False
30. 30.True or false: soap solution is an acid. (a) False (b) True
31. 31.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the number of drops (b) the liquid we test (c) the turmeric paper (d) the colour we see
32. 32.🔮 Predict: turmeric paper is dipped in salt water. What happens? (a) it turns red (b) it turns blue (c) it turns black (d) it stays yellow
33. 33.🧺 Do we need lemon juice for the turmeric test? (a) needed (b) not needed
34. 34.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the number of drops is kept the same. (a) False (b) True
35. 35.🧺 Do we need a magnet for the turmeric test? (a) needed (b) not needed
36. 36.True or false: tamarind water is an acid. (a) True (b) False
37. 37.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the colour we see (b) the turmeric paper (c) the liquid we test
38. 38.True or false: lemon juice keeps turmeric yellow. (a) True (b) False
39. 39.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the turmeric paper”? (a) we measure it (b) we change it (c) we keep it the same
40. 40.🧺 Which of these is needed for the turmeric test? (a) a balloon (b) water (c) a battery cell (d) a magnet

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