Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 787 · 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.🫧 Which of these is a base? (a) orange juice (b) sugar water (c) plain water (d) soap solution
2. 2.🔮 Predict: a yellow curry stain on a shirt is washed with soap. What colour may it turn? (a) green (b) white at once (c) bright blue (d) reddish
3. 3.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the turmeric paper (b) the colour we see (c) the liquid we test (d) the light we look in
4. 4.⚖️ 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
5. 5.🔮 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
6. 6.True or false: tamarind water keeps turmeric yellow. (a) False (b) True
7. 7.🟡 Turmeric paper meets tamarind water. What happens? (a) turns reddish-brown (b) stays yellow
8. 8.True or false: salt water keeps turmeric yellow. (a) False (b) True
9. 9.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the liquid we test is what we measure. (a) False (b) True
10. 10.🔍 Which is the odd one out? (a) detergent water (b) salt water (c) soap solution (d) baking soda water
11. 11.True or false: orange juice is neutral. (a) False (b) True
12. 12.🟡 Turmeric paper meets salt water. What happens? (a) stays yellow (b) turns reddish-brown
13. 13.🛟 Which rule keeps the turmeric test safe? (a) sniff each bottle hard (b) sip each liquid (c) mix bathroom cleaners (d) use only kitchen items
14. 14.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the liquid we test”? (a) we keep it the same (b) we change it (c) we measure it
15. 15.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the light we look in (b) the liquid we test (c) the colour we see
16. 16.True or false: lemon juice is a base. (a) False (b) True
17. 17.🛟 Turmeric stains clothes. What should you wear? (a) a white party dress (b) your best clothes (c) your school uniform (d) an old shirt or apron
18. 18.🟡 Turmeric paper meets detergent water. What happens? (a) turns reddish-brown (b) stays yellow
19. 19.🧺 Do we need a mirror for the turmeric test? (a) needed (b) not needed
20. 20.🟡 Which of these turns turmeric reddish-brown? (a) sugar water (b) vinegar (c) baking soda water (d) plain water
21. 21.🧺 Which of these is not needed for the turmeric test? (a) soap solution (b) a battery cell (c) white paper strips (d) turmeric powder
22. 22.🧺 Which of these is needed for the turmeric test? (a) a battery cell (b) a comb (c) a dropper or spoon (d) a magnet
23. 23.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the number of drops is the one thing we change. (a) False (b) True
24. 24.True or false: sugar water is an acid. (a) True (b) False
25. 25.🔍 Which is the odd one out? (a) detergent water (b) soap solution (c) vinegar (d) baking soda water
26. 26.True or false: salt water turns turmeric reddish-brown. (a) True (b) False
27. 27.🧺 Which of these is needed for the turmeric test? (a) a balloon (b) turmeric powder (c) a mirror (d) yeast
28. 28.True or false: baking soda water turns turmeric reddish-brown. (a) True (b) False
29. 29.🫧 Which of these is neutral? (a) vinegar (b) plain water (c) baking soda water (d) soap solution
30. 30.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is the one thing we change? (a) the liquid we test (b) the light we look in (c) the number of drops (d) the colour we see
31. 31.True or false: a comb is not needed for the turmeric test. (a) False (b) True
32. 32.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the colour we see”? (a) we measure it (b) we keep it the same (c) we change it
33. 33.🟡 Why does soap solution change turmeric’s colour? (a) soap is an acid (b) soap is magnetic (c) soap is hot (d) soap water is a base
34. 34.🔮 Predict: turmeric paper is dipped in salt water. What happens? (a) it turns red (b) it turns black (c) it stays yellow (d) it turns blue
35. 35.🧺 Which of these is needed for the turmeric test? (a) a battery cell (b) a balloon (c) a magnet (d) soap solution
36. 36.⚖️ 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
37. 37.🧺 Do we need a comb for the turmeric test? (a) needed (b) not needed
38. 38.🟡 Turmeric paper meets sugar water. What happens? (a) turns reddish-brown (b) stays yellow
39. 39.🧺 Do we need lemon juice for the turmeric test? (a) needed (b) not needed
40. 40.🔍 Which is the odd one out? (a) tamarind water (b) salt water (c) detergent water (d) vinegar

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