Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 152 · 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 needed for the turmeric test? (a) a magnet (b) lemon juice (c) a balloon (d) a mirror
2. 2.🟡 Turmeric paper meets plain water. What happens? (a) turns reddish-brown (b) stays yellow
3. 3.🧺 Which of these is needed for the turmeric test? (a) a comb (b) soap solution (c) a mirror (d) a battery cell
4. 4.🧺 Which of these is not needed for the turmeric test? (a) soap solution (b) water (c) a comb (d) turmeric powder
5. 5.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the number of drops”? (a) we keep it the same (b) we measure it (c) we change it
6. 6.🧺 Which of these is not needed for the turmeric test? (a) white paper strips (b) lemon juice (c) a battery cell (d) a dropper or spoon
7. 7.🔮 Predict: turmeric paper is dipped in salt water. What happens? (a) it turns black (b) it turns red (c) it stays yellow (d) it turns blue
8. 8.🍋 A reddish turmeric spot gets a few drops of lemon juice. What happens? (a) it disappears (b) it turns blue (c) it turns yellow again (d) it turns darker red
9. 9.True or false: curd is a base. (a) False (b) True
10. 10.🫧 Which of these is a base? (a) lemon juice (b) sugar water (c) soap solution (d) orange juice
11. 11.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the colour we see is kept the same. (a) True (b) False
12. 12.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the light we look in is the one thing we change. (a) False (b) True
13. 13.🧺 Which of these is needed for the turmeric test? (a) yeast (b) a balloon (c) a comb (d) white paper strips
14. 14.🧺 Do we need a balloon for the turmeric test? (a) not needed (b) needed
15. 15.🧺 Do we need a mirror for the turmeric test? (a) needed (b) not needed
16. 16.🔍 Which is the odd one out? (a) soap solution (b) baking soda water (c) vinegar (d) detergent water
17. 17.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the turmeric paper is kept the same. (a) False (b) True
18. 18.True or false: a comb is needed for the turmeric test. (a) True (b) False
19. 19.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) soap solution (b) a mirror (c) white paper strips (d) lemon juice
20. 20.🟡 Turmeric paper is dipped in soap solution. What colour does it turn? (a) green (b) it stays white (c) bright blue (d) reddish-brown
21. 21.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the liquid we test”? (a) we change it (b) we measure it (c) we keep it the same
22. 22.🟡 Which of these keeps turmeric yellow? (a) salt water (b) baking soda water (c) detergent water (d) soap solution
23. 23.⚖️ 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
24. 24.🧺 Do we need turmeric powder for the turmeric test? (a) needed (b) not needed
25. 25.🔍 Which is the odd one out? (a) lemon juice (b) baking soda water (c) soap solution (d) detergent water
26. 26.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) turmeric powder (b) a battery cell (c) soap solution (d) a dropper or spoon
27. 27.True or false: tamarind water turns turmeric reddish-brown. (a) False (b) True
28. 28.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the light we look in is kept the same. (a) True (b) False
29. 29.🧺 Do we need a magnet for the turmeric test? (a) needed (b) not needed
30. 30.🔍 Which is the odd one out? (a) soap solution (b) detergent water (c) tamarind water (d) baking soda water
31. 31.True or false: lemon juice is needed for the turmeric test. (a) False (b) True
32. 32.🔮 Predict: a yellow curry stain on a shirt is washed with soap. What colour may it turn? (a) white at once (b) green (c) reddish (d) bright blue
33. 33.🛟 Turmeric stains clothes. What should you wear? (a) your school uniform (b) a white party dress (c) your best clothes (d) an old shirt or apron
34. 34.🧺 Do we need white paper strips for the turmeric test? (a) needed (b) not needed
35. 35.🫧 Is salt water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
36. 36.True or false: water is not needed for the turmeric test. (a) True (b) False
37. 37.⚖️ 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
38. 38.🛟 Which rule keeps the turmeric test safe? (a) sip each liquid (b) sniff each bottle hard (c) use only kitchen items (d) mix bathroom cleaners
39. 39.True or false: orange juice is an acid. (a) False (b) True
40. 40.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is the one thing we change? (a) the colour we see (b) the number of drops (c) the liquid we test (d) the light we look in

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