Kitchen Chemistry Experiments Test Worksheet

Science experiments lesson 20: Part 2 test: kitchen chemistry and life · Set 783 · 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.True or false: table salt does not dissolve in water. (a) True (b) False
2. 2.True or false: a mirror is needed for sprouting seeds. (a) True (b) False
3. 3.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a shallow dish (b) a spoon (c) warm water (d) yeast
4. 4.🧺 Three of these are needed for making butter. Which one is NOT needed? (a) a bowl (b) a battery cell (c) a timer (d) fresh cream
5. 5.🔍 Which is the odd one out? (a) warmth (b) air (c) water (d) salt
6. 6.🧺 Do we need a magnet for the fizzy balloon? (a) not needed (b) needed
7. 7.🫧 Is detergent water an acid, a base or neutral? (a) neutral (b) an acid (c) a base
8. 8.🔮 Predict: you use more vinegar and more baking soda. What happens to the balloon? (a) it shrinks (b) it turns blue (c) it grows bigger (d) there is no change
9. 9.🧺 Which of these is not needed for the turmeric test? (a) white paper strips (b) lemon juice (c) water (d) a comb
10. 10.🛟 Why is a plastic jar a good choice for shaking? (a) it is magnetic (b) it is heavier (c) it will not break (d) it is hotter
11. 11.True or false: fresh cream is not needed for making butter. (a) True (b) False
12. 12.True or false: turmeric powder is needed for making butter. (a) False (b) True
13. 13.True or false: small pebbles does not dissolve in water. (a) False (b) True
14. 14.True or false: melting ice is a change that can be undone. (a) False (b) True
15. 15.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: size of the balloon is what we measure. (a) False (b) True
16. 16.🔮 Predict: tea is poured through a strainer. What happens to the tea leaves? (a) leaves pass through (b) leaves stay behind (c) both stay behind (d) tea stays behind
17. 17.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the liquid we test is kept the same. (a) True (b) False
18. 18.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a tray for spills (c) a mirror (d) vinegar
19. 19.🧺 Three of these are needed for making butter. Which one is NOT needed? (a) a jar with a tight lid (b) fresh cream (c) turmeric powder (d) cold water to rinse
20. 20.⚖️ Fair test — does yeast blow up the balloon more with warm water or cold water? What do we do with “the amount of yeast”? (a) we measure it (b) we keep it the same (c) we change it
21. 21.🫧 Is salt water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
22. 22.🔍 Which is the odd one out? (a) putting the iron away (b) writing the message (c) plugging in the iron (d) ironing the paper
23. 23.True or false: make food in sunlight is a job of the leaves. (a) False (b) True
24. 24.🧺 Do we need white paper for the secret lemon message? (a) needed (b) not needed
25. 25.True or false: a timer is not needed for making butter. (a) True (b) False
26. 26.🪴 Which of these is a job of the stem? (a) take in water from soil (b) make seeds (c) hold the plant in soil (d) carry water upward
27. 27.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? Which of these is what we measure? (a) the same dish (b) the amount of salt (c) the kind of salt (d) days to see crystals
28. 28.⚖️ Fair test — does cold cream turn into butter faster than warm cream? What do we do with “the amount of cream”? (a) we keep it the same (b) we measure it (c) we change it
29. 29.🍋 Which of these steps is a job for an adult? (a) plugging in the iron (b) letting the paper dry (c) reading the message (d) dipping the cotton bud
30. 30.🧺 Which of these is needed for growing salt crystals? (a) a mirror (b) a battery cell (c) salt (d) turmeric powder
31. 31.🛟 After the yeast experiment, what should you do with the mixture? (a) throw it at a wall (b) pour it down the sink (c) keep it for a month (d) put it in your mouth
32. 32.🫧 Is baking soda water an acid, a base or neutral? (a) neutral (b) a base (c) an acid
33. 33.🧺 Do we need turmeric powder for the turmeric test? (a) not needed (b) needed
34. 34.True or false: white paper strips is not needed for the turmeric test. (a) True (b) False
35. 35.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) nothing (b) the mud (c) the water (d) the salt
36. 36.🧈 Which of these is a change that cannot be undone? (a) freezing water (b) cooking an egg (c) dissolving salt (d) folding paper
37. 37.🧈 Which of these is a change that can be undone? (a) melting ice (b) browning lemon ink (c) milk turning to curd (d) baking a cake
38. 38.True or false: vinegar is an acid. (a) False (b) True
39. 39.🧺 Three of these are needed for sprouting seeds. Which one is NOT needed? (a) a few days (b) moong seeds (c) cotton wool (d) turmeric powder
40. 40.True or false: a comb is needed for the turmeric test. (a) False (b) True

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