Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 893 · 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 turmeric paper is kept the same. (a) True (b) False
2. 2.🟡 Turmeric paper meets soap solution. What happens? (a) stays yellow (b) turns reddish-brown
3. 3.🔍 Which is the odd one out? (a) tamarind water (b) sugar water (c) detergent water (d) plain water
4. 4.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) water (b) a balloon (c) turmeric powder (d) a dropper or spoon
5. 5.True or false: vinegar keeps turmeric yellow. (a) False (b) True
6. 6.⚖️ 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
7. 7.🛟 Which rule keeps the turmeric test safe? (a) sip each liquid (b) use only kitchen items (c) sniff each bottle hard (d) mix bathroom cleaners
8. 8.🛟 Turmeric stains clothes. What should you wear? (a) a white party dress (b) your school uniform (c) an old shirt or apron (d) your best clothes
9. 9.🟡 Which of these keeps turmeric yellow? (a) tamarind water (b) detergent water (c) baking soda water (d) soap solution
10. 10.🔮 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
11. 11.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the liquid we test is kept the same. (a) True (b) False
12. 12.🧺 Which of these is not needed for the turmeric test? (a) white paper strips (b) a dropper or spoon (c) a balloon (d) water
13. 13.🔍 Which is the odd one out? (a) sugar water (b) baking soda water (c) detergent water (d) soap solution
14. 14.🔮 Predict: a yellow curry stain on a shirt is washed with soap. What colour may it turn? (a) white at once (b) reddish (c) green (d) bright blue
15. 15.🟡 Turmeric paper meets tamarind water. What happens? (a) stays yellow (b) turns reddish-brown
16. 16.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the turmeric paper”? (a) we change it (b) we measure it (c) we keep it the same
17. 17.🟡 Turmeric paper meets vinegar. What happens? (a) turns reddish-brown (b) stays yellow
18. 18.True or false: tamarind water is neutral. (a) True (b) False
19. 19.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) lemon juice (b) a magnet (c) water (d) turmeric powder
20. 20.🟡 Which of these turns turmeric reddish-brown? (a) salt water (b) detergent water (c) lemon juice (d) tamarind water
21. 21.🍋 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
22. 22.True or false: lemon juice is a base. (a) True (b) False
23. 23.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the turmeric paper (b) the colour we see (c) the liquid we test
24. 24.🫧 Is baking soda water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
25. 25.True or false: vinegar turns turmeric reddish-brown. (a) False (b) True
26. 26.⚖️ 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 measure it (c) we keep it the same
27. 27.🧺 Which of these is not needed for the turmeric test? (a) white paper strips (b) a mirror (c) a dropper or spoon (d) soap solution
28. 28.🍋 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
29. 29.🧺 Do we need a comb for the turmeric test? (a) needed (b) not needed
30. 30.True or false: lemon juice is not needed for the turmeric test. (a) True (b) False
31. 31.True or false: a mirror is needed for the turmeric test. (a) True (b) False
32. 32.True or false: a magnet is not needed for the turmeric test. (a) False (b) True
33. 33.🟡 Turmeric paper meets sugar water. What happens? (a) turns reddish-brown (b) stays yellow
34. 34.True or false: a battery cell is needed for the turmeric test. (a) False (b) True
35. 35.True or false: lemon juice is an acid. (a) False (b) True
36. 36.🟡 Which of these keeps turmeric yellow? (a) baking soda water (b) detergent water (c) sugar water (d) soap solution
37. 37.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the light we look in (b) the colour we see (c) the number of drops (d) the liquid we test
38. 38.True or false: white paper strips is needed for the turmeric test. (a) False (b) True
39. 39.🟡 Turmeric paper meets lemon juice. What happens? (a) turns reddish-brown (b) stays yellow
40. 40.🟡 Turmeric paper meets salt water. What happens? (a) turns reddish-brown (b) stays yellow

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