Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 277 · 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) turns reddish-brown (b) stays yellow
2. 2.🍋 A drop of lemon juice falls on turmeric paper. What happens? (a) it turns black (b) it stays yellow (c) it turns blue (d) it turns red
3. 3.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the turmeric paper is kept the same. (a) False (b) True
4. 4.⚖️ 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
5. 5.True or false: turmeric powder is needed for the turmeric test. (a) False (b) True
6. 6.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a dropper or spoon (b) water (c) white paper strips (d) yeast
7. 7.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) lemon juice (b) a magnet (c) soap solution (d) water
8. 8.🟡 Which of these keeps turmeric yellow? (a) lemon juice (b) detergent water (c) soap solution (d) baking soda water
9. 9.True or false: a magnet is not needed for the turmeric test. (a) False (b) True
10. 10.🛟 Which rule keeps the turmeric test safe? (a) sip each liquid (b) mix bathroom cleaners (c) use only kitchen items (d) sniff each bottle hard
11. 11.📘 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
12. 12.🧺 Which of these is not needed for the turmeric test? (a) white paper strips (b) a mirror (c) soap solution (d) lemon juice
13. 13.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) soap solution (b) lemon juice (c) a mirror (d) water
14. 14.🟡 Turmeric paper meets detergent water. What happens? (a) stays yellow (b) turns reddish-brown
15. 15.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) it stays yellow (b) it turns blue (c) it turns green (d) reddish-brown
16. 16.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a balloon (b) turmeric powder (c) a dropper or spoon (d) white paper strips
17. 17.🍋 A reddish turmeric spot gets a few drops of lemon juice. What happens? (a) it disappears (b) it turns yellow again (c) it turns blue (d) it turns darker red
18. 18.🧺 Do we need turmeric powder for the turmeric test? (a) not needed (b) needed
19. 19.🧺 Do we need a balloon for the turmeric test? (a) not needed (b) needed
20. 20.True or false: yeast is needed for the turmeric test. (a) True (b) False
21. 21.🛟 Turmeric stains clothes. What should you wear? (a) your best clothes (b) your school uniform (c) an old shirt or apron (d) a white party dress
22. 22.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is the one thing we change? (a) the light we look in (b) the number of drops (c) the liquid we test (d) the turmeric paper
23. 23.True or false: a mirror is needed for the turmeric test. (a) False (b) True
24. 24.🧺 Do we need yeast for the turmeric test? (a) needed (b) not needed
25. 25.🟡 Which of these turns turmeric reddish-brown? (a) sugar water (b) vinegar (c) soap solution (d) lemon juice
26. 26.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the turmeric paper (b) the number of drops (c) the colour we see (d) the liquid we test
27. 27.🟡 Turmeric paper meets soap solution. What happens? (a) stays yellow (b) turns reddish-brown
28. 28.🧺 Which of these is needed for the turmeric test? (a) a mirror (b) white paper strips (c) a magnet (d) a balloon
29. 29.🧺 Which of these is not needed for the turmeric test? (a) white paper strips (b) water (c) a dropper or spoon (d) a balloon
30. 30.🫧 Is lemon juice an acid, a base or neutral? (a) an acid (b) neutral (c) a base
31. 31.True or false: detergent water keeps turmeric yellow. (a) True (b) False
32. 32.🧺 Which of these is needed for the turmeric test? (a) a battery cell (b) a mirror (c) soap solution (d) a comb
33. 33.True or false: lemon juice keeps turmeric yellow. (a) False (b) True
34. 34.🟡 Turmeric paper meets tamarind water. What happens? (a) stays yellow (b) turns reddish-brown
35. 35.🫧 Is vinegar an acid, a base or neutral? (a) a base (b) an acid (c) neutral
36. 36.⚖️ 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
37. 37.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the light we look in”? (a) we change it (b) we keep it the same (c) we measure it
38. 38.🟡 Which of these turns turmeric reddish-brown? (a) plain water (b) lemon juice (c) baking soda water (d) tamarind water
39. 39.🫧 Is detergent water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
40. 40.🧺 Do we need a battery cell for the turmeric test? (a) needed (b) not needed

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids