Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 807 · 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.🧺 Do we need a battery cell for the turmeric test? (a) not needed (b) needed
2. 2.🟡 Which of these keeps turmeric yellow? (a) detergent water (b) soap solution (c) tamarind water (d) baking soda water
3. 3.🫧 Which of these is an acid? (a) plain water (b) lemon juice (c) salt water (d) sugar water
4. 4.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the liquid we test (b) the colour we see (c) the number of drops (d) the turmeric paper
5. 5.🫧 Is plain water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
6. 6.🧺 Do we need turmeric powder for the turmeric test? (a) needed (b) not needed
7. 7.🫧 Which of these is neutral? (a) vinegar (b) orange juice (c) soap solution (d) plain water
8. 8.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the colour we see (b) the number of drops (c) the liquid we test
9. 9.🧺 Do we need lemon juice for the turmeric test? (a) needed (b) not needed
10. 10.🧺 Which of these is not needed for the turmeric test? (a) lemon juice (b) a mirror (c) soap solution (d) white paper strips
11. 11.⚖️ 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
12. 12.🟡 Turmeric paper meets soap solution. What happens? (a) stays yellow (b) turns reddish-brown
13. 13.True or false: orange juice is neutral. (a) False (b) True
14. 14.🧺 Which of these is needed for the turmeric test? (a) a mirror (b) lemon juice (c) a magnet (d) a balloon
15. 15.🫧 Which of these is an acid? (a) tamarind water (b) detergent water (c) baking soda water (d) salt water
16. 16.⚖️ 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 measure it (c) we change it
17. 17.True or false: white paper strips is not needed for the turmeric test. (a) False (b) True
18. 18.⚖️ 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
19. 19.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the light we look in”? (a) we measure it (b) we change it (c) we keep it the same
20. 20.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the light we look in (b) the colour we see (c) the liquid we test
21. 21.🔍 Which is the odd one out? (a) soap solution (b) detergent water (c) baking soda water (d) vinegar
22. 22.🔍 Which is the odd one out? (a) vinegar (b) soap solution (c) lemon juice (d) tamarind water
23. 23.🫧 Which of these is neutral? (a) detergent water (b) sugar water (c) orange juice (d) lemon juice
24. 24.True or false: salt water keeps turmeric yellow. (a) False (b) True
25. 25.🧺 Do we need white paper strips for the turmeric test? (a) needed (b) not needed
26. 26.🟡 Turmeric paper is dipped in soap solution. What colour does it turn? (a) green (b) it stays white (c) reddish-brown (d) bright blue
27. 27.🧺 Which of these is not needed for the turmeric test? (a) lemon juice (b) a dropper or spoon (c) white paper strips (d) yeast
28. 28.🧺 Which of these is needed for the turmeric test? (a) a balloon (b) a magnet (c) white paper strips (d) a battery cell
29. 29.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the colour we see is kept the same. (a) True (b) False
30. 30.🧺 Which of these is not needed for the turmeric test? (a) lemon juice (b) a dropper or spoon (c) water (d) a balloon
31. 31.🟡 Which of these keeps turmeric yellow? (a) detergent water (b) soap solution (c) plain water (d) baking soda water
32. 32.🛟 Turmeric stains clothes. What should you wear? (a) your best clothes (b) your school uniform (c) a white party dress (d) an old shirt or apron
33. 33.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a dropper or spoon (b) white paper strips (c) a comb (d) water
34. 34.🟡 Which of these turns turmeric reddish-brown? (a) sugar water (b) plain water (c) baking soda water (d) vinegar
35. 35.🟡 Which of these keeps turmeric yellow? (a) sugar water (b) baking soda water (c) detergent water (d) soap solution
36. 36.🍋 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
37. 37.🧺 Do we need yeast for the turmeric test? (a) not needed (b) needed
38. 38.🧺 Which of these is not needed for the turmeric test? (a) a battery cell (b) white paper strips (c) lemon juice (d) a dropper or spoon
39. 39.🛟 Which rule keeps the turmeric test safe? (a) use only kitchen items (b) sip each liquid (c) sniff each bottle hard (d) mix bathroom cleaners
40. 40.True or false: soap solution is a base. (a) False (b) True

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