Kitchen Chemistry Experiments Test Worksheet

Science experiments lesson 20: Part 2 test: kitchen chemistry and life · Set 24 · 40 questions

What you do (Find the experiment, use the idea): 1. Read the question and find its experiment. 2. Use that experiment’s idea — acid and base, indicator colours, chemical change, what seeds and yeast need, transpiration, crystals or filtering. 3. For a fair-test question, find what is changed, kept the same and measured. 4. For a safety question, choose what keeps everyone safe.

1. 1.🔍 Which is the odd one out? (a) writing the message (b) dipping the cotton bud (c) reading the message (d) putting the iron away
2. 2.True or false: sugar from sugar water is done by handpicking. (a) False (b) True
3. 3.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? What do we do with “the amount of salt”? (a) we keep it the same (b) we measure it (c) we change it
4. 4.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it grows bigger (b) it turns blue (c) there is no change (d) it shrinks
5. 5.🔮 Predict: a yellow curry stain on a shirt is washed with soap. What colour may it turn? (a) bright blue (b) green (c) reddish (d) white at once
6. 6.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) turmeric powder (c) a magnet (d) cotton or cloth
7. 7.True or false: a seed is needed for the fizzy balloon. (a) True (b) False
8. 8.🧺 Which of these is needed for the fizzy balloon? (a) a balloon (b) a battery cell (c) a comb (d) sugar
9. 9.🫧 Which gas fills the balloon in the baking soda and vinegar experiment? (a) oxygen (b) hydrogen (c) helium (d) carbon dioxide
10. 10.True or false: chalk powder does not dissolve in water. (a) True (b) False
11. 11.🧺 Which of these is not needed for the fizzy balloon? (a) a tray for spills (b) a funnel or spoon (c) a mirror (d) an empty bottle
12. 12.⚖️ Fair test — does lemon juice or orange juice make darker secret writing? Which of these is what we measure? (a) the ironing time (b) the kind of juice (c) how dark the writing is (d) the same cotton bud
13. 13.🛟 Which rule keeps the turmeric test safe? (a) sniff each bottle hard (b) use only kitchen items (c) mix bathroom cleaners (d) sip each liquid
14. 14.🧺 Which of these is needed for the leafy bag test? (a) a few hours (b) a mirror (c) turmeric powder (d) yeast
15. 15.🧂 Does food colour dissolve in water? (a) dissolves in water (b) does not dissolve
16. 16.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) soap solution (b) a mirror (c) a dropper or spoon (d) white paper strips
17. 17.🔍 Which is the odd one out? (a) lemon juice (b) tamarind water (c) soap solution (d) vinegar
18. 18.🫧 Which of these is an acid? (a) salt water (b) plain water (c) detergent water (d) orange juice
19. 19.🧺 Three of these are needed for sprouting seeds. Which one is NOT needed? (a) a balloon (b) water (c) a few days (d) cotton wool
20. 20.True or false: a battery cell is needed for the turmeric test. (a) False (b) True
21. 21.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a few hours (b) a rubber band (c) sunlight (d) yeast
22. 22.🔮 Predict: turmeric paper is dipped in salt water. What happens? (a) it stays yellow (b) it turns blue (c) it turns red (d) it turns black
23. 23.🔍 Which is the odd one out? (a) writing the message (b) cutting the lemon (c) ironing the paper (d) plugging in the iron
24. 24.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? Which of these is kept the same? (a) sunny or shady place (b) days to see crystals (c) the amount of water
25. 25.🛟 Lemon juice stings cuts and eyes. What should you do after the experiment? (a) wash your hands (b) rub your eyes (c) skip washing (d) lick your fingers
26. 26.True or false: a dropper or spoon is needed for the turmeric test. (a) False (b) True
27. 27.🔍 Which is the odd one out? (a) warmth (b) air (c) sunlight (d) water
28. 28.True or false: husk from rice grain is done by handpicking. (a) False (b) True
29. 29.🧺 Do we need a rubber band for the leafy bag test? (a) needed (b) not needed
30. 30.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the filter material (b) how clear the water is (c) the same muddy water
31. 31.⚖️ Fair test — does yeast blow up the balloon more with warm water or cold water? What do we do with “the amount of sugar”? (a) we measure it (b) we change it (c) we keep it the same
32. 32.🔍 Which is the odd one out? (a) dissolving salt (b) baking a cake (c) freezing water (d) folding paper
33. 33.🧺 Do we need baking soda for the fizzy balloon? (a) needed (b) not needed
34. 34.🔮 Predict: you wait 2 hours instead of 10 minutes. What happens? (a) the balloon is bigger (b) it shrinks to nothing (c) it turns to bread (d) the balloon is smaller
35. 35.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the light we look in”? (a) we change it (b) we measure it (c) we keep it the same
36. 36.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) sugar (b) an empty bottle (c) a tray for spills (d) a funnel or spoon
37. 37.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is kept the same. (a) True (b) False
38. 38.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we keep it the same (b) we change it (c) we measure it
39. 39.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the light we look in (b) the turmeric paper (c) the liquid we test (d) the colour we see
40. 40.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) baking soda (c) a tray for spills (d) a comb

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