Turmeric Indicator Experiment Worksheet

Science experiments lesson 12: Turmeric indicator: acid or base? · Set 916 · 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? What do we do with “the light we look in”? (a) we keep it the same (b) we change it (c) we measure it
2. 2.🧺 Which of these is needed for the turmeric test? (a) turmeric powder (b) a balloon (c) a comb (d) a magnet
3. 3.📘 What do we call something that changes colour to show an acid or a base? (a) a prism (b) a pulley (c) an indicator (d) a magnet
4. 4.True or false: white paper strips is not needed for the turmeric test. (a) True (b) False
5. 5.🟡 Which of these keeps turmeric yellow? (a) baking soda water (b) soap solution (c) plain water (d) detergent water
6. 6.🧺 Which of these is not needed for the turmeric test? (a) turmeric powder (b) lemon juice (c) a battery cell (d) soap solution
7. 7.🧺 Which of these is not needed for the turmeric test? (a) turmeric powder (b) soap solution (c) a balloon (d) a dropper or spoon
8. 8.🫧 Which of these is an acid? (a) vinegar (b) baking soda water (c) detergent water (d) sugar water
9. 9.🔮 Predict: turmeric paper is dipped in salt water. What happens? (a) it stays yellow (b) it turns black (c) it turns blue (d) it turns red
10. 10.True or false: a comb is not needed for the turmeric test. (a) False (b) True
11. 11.True or false: a battery cell is needed for the turmeric test. (a) False (b) True
12. 12.🟡 Turmeric paper meets salt water. What happens? (a) stays yellow (b) turns reddish-brown
13. 13.🫧 Which of these is an acid? (a) soap solution (b) tamarind water (c) detergent water (d) baking soda water
14. 14.⚖️ 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
15. 15.⚖️ 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
16. 16.🛟 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
17. 17.🔮 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
18. 18.🔍 Which is the odd one out? (a) soap solution (b) baking soda water (c) tamarind water (d) detergent water
19. 19.🧺 Which of these is not needed for the turmeric test? (a) a magnet (b) white paper strips (c) lemon juice (d) water
20. 20.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the light we look in (b) the liquid we test (c) the turmeric paper (d) the colour we see
21. 21.True or false: salt water keeps turmeric yellow. (a) False (b) True
22. 22.🛟 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
23. 23.True or false: lemon juice is neutral. (a) True (b) False
24. 24.True or false: soap solution is a base. (a) False (b) True
25. 25.🟡 Turmeric paper meets baking soda water. What happens? (a) stays yellow (b) turns reddish-brown
26. 26.🧺 Do we need a balloon for the turmeric test? (a) needed (b) not needed
27. 27.🧺 Which of these is not needed for the turmeric test? (a) turmeric powder (b) a dropper or spoon (c) white paper strips (d) a mirror
28. 28.True or false: a mirror is needed for the turmeric test. (a) True (b) False
29. 29.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the liquid we test (b) the turmeric paper (c) the colour we see
30. 30.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) it turns green (b) it stays yellow (c) it turns blue (d) reddish-brown
31. 31.True or false: detergent water is neutral. (a) False (b) True
32. 32.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) white paper strips (b) a battery cell (c) turmeric powder (d) a dropper or spoon
33. 33.⚖️ 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 turmeric paper
34. 34.True or false: soap solution keeps turmeric yellow. (a) False (b) True
35. 35.🫧 Which of these is an acid? (a) sugar water (b) orange juice (c) salt water (d) detergent water
36. 36.🧺 Which of these is needed for the turmeric test? (a) yeast (b) a mirror (c) a magnet (d) water
37. 37.🫧 Is vinegar an acid, a base or neutral? (a) neutral (b) a base (c) an acid
38. 38.🟡 Which of these keeps turmeric yellow? (a) detergent water (b) baking soda water (c) tamarind water (d) soap solution
39. 39.True or false: salt water turns turmeric reddish-brown. (a) True (b) False
40. 40.🔍 Which is the odd one out? (a) sugar water (b) salt water (c) tamarind water (d) soap solution

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