Kitchen Chemistry Experiments Test Worksheet

Science experiments lesson 20: Part 2 test: kitchen chemistry and life · Set 743 · 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 a timer for making butter? (a) not needed (b) needed
2. 2.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we measure it (b) we change it (c) we keep it the same
3. 3.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? True or false: the kind of plant is what we measure. (a) True (b) False
4. 4.🫧 Is sugar water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
5. 5.🧺 Which of these is needed for making butter? (a) turmeric powder (b) a battery cell (c) a jar with a tight lid (d) a mirror
6. 6.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) turmeric powder (b) muddy water (c) a clean glass (d) sand and pebbles
7. 7.True or false: letting the paper dry is a job a child can do. (a) False (b) True
8. 8.True or false: writing the message is a job a child can do. (a) False (b) True
9. 9.🫧 Which of these is an acid? (a) detergent water (b) tamarind water (c) salt water (d) plain water
10. 10.True or false: an adult with an iron is needed for the secret lemon message. (a) True (b) False
11. 11.🧺 Do we need turmeric powder for the leafy bag test? (a) needed (b) not needed
12. 12.True or false: yeast is not needed for the secret lemon message. (a) True (b) False
13. 13.🛟 Who should pour the warm water for the crystal experiment? (a) a friend who is running (b) a grown-up (c) nobody needs to (d) the youngest child
14. 14.True or false: a battery cell is needed for the yeast balloon. (a) True (b) False
15. 15.🧺 Do we need a magnet for the leafy bag test? (a) needed (b) not needed
16. 16.⚖️ Fair test — does cold cream turn into butter faster than warm cream? True or false: the cream temperature is what we measure. (a) False (b) True
17. 17.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) reddish-brown (b) it turns green (c) it turns blue (d) it stays yellow
18. 18.🧺 Three of these are needed for the yeast balloon. Which one is NOT needed? (a) a comb (b) warm water (c) dry yeast (d) a balloon
19. 19.🔮 Predict: you shake skimmed milk (with almost no cream) instead. What happens? (a) it turns to cheese (b) it turns blue (c) no butter forms (d) more butter forms
20. 20.⚖️ 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 measure it (c) we change it
21. 21.🍋 A drop of lemon juice falls on turmeric paper. What happens? (a) it turns red (b) it stays yellow (c) it turns black (d) it turns blue
22. 22.True or false: hold up the leaves is a job of the flower. (a) True (b) False
23. 23.⚖️ Fair test — does yeast blow up the balloon more with warm water or cold water? What do we do with “size of the balloon”? (a) we change it (b) we measure it (c) we keep it the same
24. 24.🧺 Which of these is not needed for the secret lemon message? (a) lemon juice (b) a balloon (c) a cotton bud (d) white paper
25. 25.🫧 Is soap solution an acid, a base or neutral? (a) a base (b) an acid (c) neutral
26. 26.True or false: a comb is not needed for the yeast balloon. (a) True (b) False
27. 27.True or false: dipping the cotton bud is a job a child can do. (a) True (b) False
28. 28.🧺 Which of these is not needed for the secret lemon message? (a) lemon juice (b) a magnet (c) white paper (d) an adult with an iron
29. 29.🧺 Which of these is not needed for the turmeric test? (a) turmeric powder (b) soap solution (c) water (d) yeast
30. 30.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) an empty bottle (c) a comb (d) a funnel or spoon
31. 31.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the turmeric paper”? (a) we keep it the same (b) we change it (c) we measure it
32. 32.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? What do we do with “amount of water drops”? (a) we keep it the same (b) we measure it (c) we change it
33. 33.🔍 Which is the odd one out? (a) putting the iron away (b) letting the paper dry (c) cutting the lemon (d) plugging in the iron
34. 34.🟡 Which of these turns turmeric reddish-brown? (a) salt water (b) lemon juice (c) soap solution (d) vinegar
35. 35.True or false: hold the plant in soil is a job of the stem. (a) True (b) False
36. 36.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? What do we do with “the size of the plant”? (a) we measure it (b) we change it (c) we keep it the same
37. 37.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) yeast (c) muddy water (d) sand and pebbles
38. 38.🫧 Is detergent water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
39. 39.🛟 What should you do if vinegar splashes in your eye? (a) rinse with clean water (b) ignore it (c) add baking soda (d) rub it hard
40. 40.🍞 Which of these is something yeast needs? (a) sunlight (b) vinegar (c) salt (d) time

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