Kitchen Chemistry Experiments Test Worksheet

Science experiments lesson 20: Part 2 test: kitchen chemistry and life · Set 235 · 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.🧺 Do we need cotton wool for sprouting seeds? (a) needed (b) not needed
2. 2.🛟 Which rule keeps the turmeric test safe? (a) sniff each bottle hard (b) mix bathroom cleaners (c) use only kitchen items (d) sip each liquid
3. 3.🧺 Do we need soap solution for the turmeric test? (a) not needed (b) needed
4. 4.⚖️ Fair test — do seeds need water to sprout? True or false: how many seeds sprout is what we measure. (a) True (b) False
5. 5.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same muddy water (b) how clear the water is (c) the filter material
6. 6.🔮 Predict: which gives more drops in the bag — a hot sunny day or a cool cloudy day? (a) the cool cloudy day (b) neither of them (c) the hot sunny day (d) both the same
7. 7.🔍 Which is the odd one out? (a) sugar water (b) salt water (c) plain water (d) baking soda water
8. 8.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is the one thing we change? (a) the light we look in (b) the liquid we test (c) the turmeric paper (d) the number of drops
9. 9.🎈 What blows up the balloon in the yeast experiment? (a) smoke (b) air from outside (c) carbon dioxide gas (d) steam
10. 10.🧺 Do we need muddy water for the muddy water filter? (a) needed (b) not needed
11. 11.🔮 Predict: you write with plain water instead of lemon juice. What appears after ironing? (a) blue words (b) a rainbow (c) almost nothing (d) dark brown words
12. 12.⚖️ Fair test — does cold cream turn into butter faster than warm cream? What do we do with “how hard we shake”? (a) we change it (b) we measure it (c) we keep it the same
13. 13.🧺 Three of these are needed for the secret lemon message. Which one is NOT needed? (a) lemon juice (b) a cotton bud (c) a small bowl (d) a battery cell
14. 14.🫧 Which of these is a base? (a) lemon juice (b) orange juice (c) tamarind water (d) detergent water
15. 15.⚖️ Fair test — does lemon juice or orange juice make darker secret writing? Which of these is kept the same? (a) how dark the writing is (b) the kind of juice (c) the same cotton bud
16. 16.🫧 Is vinegar an acid, a base or neutral? (a) a base (b) an acid (c) neutral
17. 17.🍋 Which of these steps is a job for an adult? (a) writing the message (b) dipping the cotton bud (c) reading the message (d) cutting the lemon
18. 18.🧺 Do we need an empty bottle for the fizzy balloon? (a) not needed (b) needed
19. 19.True or false: plugging in the iron is a job a child can do. (a) False (b) True
20. 20.🧺 Three of these are needed for making butter. Which one is NOT needed? (a) cold water to rinse (b) a bowl (c) yeast (d) a timer
21. 21.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we measure it (b) we keep it the same (c) we change it
22. 22.🔍 Which is the odd one out? (a) time (b) salt (c) warm water (d) sugar
23. 23.🟡 Which of these turns turmeric reddish-brown? (a) salt water (b) lemon juice (c) baking soda water (d) tamarind water
24. 24.🧺 Which of these is needed for sprouting seeds? (a) moong seeds (b) a balloon (c) a battery cell (d) yeast
25. 25.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) nothing is needed (c) wash hands afterwards (d) lick your fingers
26. 26.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sugar (b) it turns to sand (c) yes, all of it (d) no, salt passes through
27. 27.🛟 Where should you keep the crystal dish while it dries? (a) next to the baby (b) on the edge of a table (c) in a busy doorway (d) safe from small children
28. 28.True or false: seeds on wet cotton does not sprout. (a) True (b) False
29. 29.True or false: seeds on dry cotton does not sprout. (a) False (b) True
30. 30.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the colour we see (b) the liquid we test (c) the number of drops
31. 31.🧺 Which of these is not needed for the turmeric test? (a) water (b) lemon juice (c) turmeric powder (d) a balloon
32. 32.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) salty (b) muddier (c) hot (d) clearer
33. 33.🧺 Three of these are needed for sprouting seeds. Which one is NOT needed? (a) turmeric powder (b) moong seeds (c) cotton wool (d) water
34. 34.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) soap solution (b) lemon juice (c) a balloon (d) turmeric powder
35. 35.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) baking soda (c) a battery cell (d) a tray for spills
36. 36.🧺 Three of these are needed for making butter. Which one is NOT needed? (a) a jar with a tight lid (b) turmeric powder (c) fresh cream (d) a bowl
37. 37.🧺 Which of these is not needed for sprouting seeds? (a) a few days (b) cotton wool (c) moong seeds (d) yeast
38. 38.🫧 Is plain water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
39. 39.True or false: sugar does not dissolve in water. (a) True (b) False
40. 40.🍞 Which of these is something yeast does not need? (a) warm water (b) sugar (c) time (d) sunlight

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