Kitchen Chemistry Experiments Test Worksheet

Science experiments lesson 20: Part 2 test: kitchen chemistry and life · Set 504 · 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 magnet for the turmeric test? (a) needed (b) not needed
2. 2.True or false: warm water is needed for growing salt crystals. (a) False (b) True
3. 3.🧺 Which of these is not needed for the yeast balloon? (a) warm water (b) a small bottle (c) a balloon (d) a mirror
4. 4.True or false: soap solution is not needed for the turmeric test. (a) True (b) False
5. 5.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? True or false: amount of water drops is what we measure. (a) False (b) True
6. 6.True or false: water is needed for the turmeric test. (a) True (b) False
7. 7.True or false: give out water vapour is a job of the roots. (a) True (b) False
8. 8.🧺 Do we need a magnet for the yeast balloon? (a) not needed (b) needed
9. 9.🔍 Which is the odd one out? (a) baking soda water (b) detergent water (c) sugar water (d) soap solution
10. 10.🧺 Which of these is not needed for the turmeric test? (a) water (b) a mirror (c) a dropper or spoon (d) turmeric powder
11. 11.True or false: an adult with an iron is needed for the secret lemon message. (a) True (b) False
12. 12.🔮 Predict: a plant gets no water for many days in summer. What happens? (a) it grows faster (b) it turns blue (c) it wilts and droops (d) it flowers more
13. 13.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a seed (b) baking soda (c) a tray for spills (d) a funnel or spoon
14. 14.True or false: a small bowl is needed for sprouting seeds. (a) False (b) True
15. 15.🍞 Why do we add sugar to the yeast? (a) it is food for yeast (b) to make it sweet (c) to make it heavy (d) to colour it
16. 16.🟡 Which of these turns turmeric paper reddish-brown? (a) soap solution (b) vinegar (c) lemon juice (d) sugar water
17. 17.🔮 The fizzing stops after a while. Why? (a) the gas froze (b) the balloon got cold (c) an ingredient ran out (d) the bottle got tired
18. 18.⚖️ Fair test — do seeds need water to sprout? Which of these is kept the same? (a) wet or dry cotton (b) how many seeds sprout (c) the same place
19. 19.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the colour we see”? (a) we measure it (b) we keep it the same (c) we change it
20. 20.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) baking soda (b) a battery cell (c) a balloon (d) a tray for spills
21. 21.True or false: a magnet is not needed for sprouting seeds. (a) True (b) False
22. 22.🧺 Do we need turmeric powder for the muddy water filter? (a) needed (b) not needed
23. 23.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we keep it the same (b) we measure it (c) we change it
24. 24.True or false: a balloon is not needed for the muddy water filter. (a) False (b) True
25. 25.True or false: make seeds is a job of the leaves. (a) False (b) True
26. 26.🪴 Which part of a plant does this job: hold up the leaves? (a) flower (b) stem (c) roots (d) leaves
27. 27.True or false: soap solution is an acid. (a) True (b) False
28. 28.True or false: a cotton bud is not needed for the secret lemon message. (a) True (b) False
29. 29.📘 What do we call something that changes colour to show an acid or a base? (a) a pulley (b) a prism (c) an indicator (d) a magnet
30. 30.⚖️ Fair test — does lemon juice or orange juice make darker secret writing? True or false: the ironing time is kept the same. (a) True (b) False
31. 31.True or false: a magnet is needed for the yeast balloon. (a) True (b) False
32. 32.🧺 Three of these are needed for sprouting seeds. Which one is NOT needed? (a) water (b) moong seeds (c) yeast (d) cotton wool
33. 33.True or false: folding paper is a change that cannot be undone. (a) False (b) True
34. 34.🔍 Which is the odd one out? (a) sawdust (b) sand (c) table salt (d) chalk powder
35. 35.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the turmeric paper”? (a) we measure it (b) we change it (c) we keep it the same
36. 36.🪴 Which part of a plant does this job: take in water from soil? (a) flower (b) roots (c) leaves (d) stem
37. 37.🫧 Which of these is a base? (a) vinegar (b) soap solution (c) salt water (d) sugar water
38. 38.🧺 Do we need turmeric powder for the leafy bag test? (a) not needed (b) needed
39. 39.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the number of drops”? (a) we keep it the same (b) we change it (c) we measure it
40. 40.🌱 Will these sprout: wet seeds by a window? (a) does not sprout (b) sprouts

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