Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 795 · 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 is the odd one out? (a) soap solution (b) plain water (c) detergent water (d) baking soda water
2. 2.🛟 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
3. 3.🍋 A drop of lemon juice falls on turmeric paper. What happens? (a) it stays yellow (b) it turns blue (c) it turns red (d) it turns black
4. 4.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a dropper or spoon (b) white paper strips (c) yeast (d) turmeric powder
5. 5.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the turmeric paper”? (a) we keep it the same (b) we change it (c) we measure it
6. 6.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the liquid we test”? (a) we change it (b) we keep it the same (c) we measure it
7. 7.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the liquid we test is the one thing we change. (a) False (b) True
8. 8.True or false: salt water is neutral. (a) False (b) True
9. 9.🧺 Which of these is needed for the turmeric test? (a) a mirror (b) a balloon (c) a battery cell (d) white paper strips
10. 10.⚖️ 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
11. 11.🔮 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
12. 12.True or false: tamarind water turns turmeric reddish-brown. (a) True (b) False
13. 13.🧺 Which of these is not needed for the turmeric test? (a) soap solution (b) turmeric powder (c) a magnet (d) water
14. 14.🟡 Turmeric paper meets vinegar. What happens? (a) stays yellow (b) turns reddish-brown
15. 15.🔍 Which is the odd one out? (a) soap solution (b) baking soda water (c) detergent water (d) sugar water
16. 16.True or false: baking soda water turns turmeric reddish-brown. (a) True (b) False
17. 17.True or false: a mirror is not needed for the turmeric test. (a) False (b) True
18. 18.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a magnet (b) a dropper or spoon (c) water (d) lemon juice
19. 19.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) turmeric powder (b) water (c) a battery cell (d) a dropper or spoon
20. 20.🫧 Which of these is a base? (a) orange juice (b) lemon juice (c) detergent water (d) vinegar
21. 21.🔍 Which is the odd one out? (a) baking soda water (b) detergent water (c) lemon juice (d) soap solution
22. 22.🟡 Turmeric paper meets plain water. What happens? (a) turns reddish-brown (b) stays yellow
23. 23.🍋 A reddish turmeric spot gets a few drops of lemon juice. What happens? (a) it turns darker red (b) it turns blue (c) it disappears (d) it turns yellow again
24. 24.🟡 Why does soap solution change turmeric’s colour? (a) soap is magnetic (b) soap water is a base (c) soap is hot (d) soap is an acid
25. 25.🛟 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
26. 26.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the liquid we test (b) the light we look in (c) the colour we see
27. 27.🧺 Do we need white paper strips for the turmeric test? (a) not needed (b) needed
28. 28.True or false: curd is neutral. (a) False (b) True
29. 29.🧺 Do we need yeast for the turmeric test? (a) needed (b) not needed
30. 30.True or false: a battery cell is needed for the turmeric test. (a) False (b) True
31. 31.True or false: a battery cell is not needed for the turmeric test. (a) False (b) True
32. 32.True or false: soap solution keeps turmeric yellow. (a) True (b) False
33. 33.🧺 Which of these is needed for the turmeric test? (a) a mirror (b) a magnet (c) turmeric powder (d) a battery cell
34. 34.🧺 Do we need a balloon for the turmeric test? (a) needed (b) not needed
35. 35.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) soap solution (b) water (c) a dropper or spoon (d) a mirror
36. 36.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the liquid we test is what we measure. (a) True (b) False
37. 37.🔮 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
38. 38.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) turmeric powder (b) white paper strips (c) water (d) a balloon
39. 39.🧺 Which of these is not needed for the turmeric test? (a) a battery cell (b) soap solution (c) turmeric powder (d) white paper strips
40. 40.🧺 Do we need a magnet for the turmeric test? (a) not needed (b) needed

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