Kitchen Chemistry Experiments Test Worksheet

Science experiments lesson 20: Part 2 test: kitchen chemistry and life · Set 989 · 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.🫧 Is plain water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
2. 2.⚖️ 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 change it (b) we measure it (c) we keep it the same
3. 3.⚖️ Fair test — do seeds need water to sprout? What do we do with “how many seeds sprout”? (a) we change it (b) we keep it the same (c) we measure it
4. 4.🧂 Which of these does not dissolve in water? (a) sugar (b) chalk powder (c) table salt (d) food colour
5. 5.📘 Is the fizzing a sign that a new substance is made? (a) it is only melting (b) it is only dissolving (c) yes, a new gas forms (d) no, nothing changes
6. 6.True or false: sand and pebbles is needed for the muddy water filter. (a) False (b) True
7. 7.🟡 Which of these keeps turmeric yellow? (a) soap solution (b) baking soda water (c) detergent water (d) lemon juice
8. 8.🧺 Do we need warm water for the yeast balloon? (a) needed (b) not needed
9. 9.🪴 Which part of a plant does this job: make seeds? (a) stem (b) roots (c) leaves (d) flower
10. 10.⚖️ 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
11. 11.True or false: soil is needed for a seed to sprout. (a) True (b) False
12. 12.🪴 Which of these is a job of the stem? (a) hold the plant in soil (b) make seeds (c) carry water upward (d) take in water from soil
13. 13.🔮 Predict: the jar is filled right to the top with cream. What happens? (a) it turns pink (b) it makes salt (c) it takes much longer (d) it is much faster
14. 14.🧺 Which of these is needed for the fizzy balloon? (a) sugar (b) a magnet (c) a tray for spills (d) a seed
15. 15.🧺 Do we need dry yeast for the yeast balloon? (a) not needed (b) needed
16. 16.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? What do we do with “sun or shade”? (a) we change it (b) we measure it (c) we keep it the same
17. 17.🧺 Do we need a clean glass for the muddy water filter? (a) needed (b) not needed
18. 18.🧺 Three of these are needed for the yeast balloon. Which one is NOT needed? (a) sugar (b) a battery cell (c) a balloon (d) dry yeast
19. 19.🌱 Is sugar needed for a seed to sprout? (a) not needed to sprout (b) needed to sprout
20. 20.🌱 Will these sprout: wet seeds in the dark? (a) does not sprout (b) sprouts
21. 21.🔍 Which is the odd one out? (a) baking soda (b) table salt (c) sugar (d) cooking oil
22. 22.True or false: white paper strips is needed for the turmeric test. (a) True (b) False
23. 23.🧈 Can this change be undone: freezing water? (a) can be undone (b) cannot be undone
24. 24.True or false: an empty bottle is needed for the fizzy balloon. (a) False (b) True
25. 25.🛟 Why must the jar lid be screwed on tightly? (a) so cream does not spill (b) so air gets out (c) so it turns yellow (d) so it gets hot
26. 26.🍋 Which of these steps is a job a child can do? (a) ironing the paper (b) letting the paper dry (c) putting the iron away (d) cutting the lemon
27. 27.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? What do we do with “the kind of plant”? (a) we measure it (b) we keep it the same (c) we change it
28. 28.🍋 Why can’t you see the lemon writing once it dries? (a) dry juice is see-through (b) the paper ate it (c) the ink is magnetic (d) it turned into air
29. 29.⚖️ Fair test — does lemon juice or orange juice make darker secret writing? What do we do with “the kind of juice”? (a) we measure it (b) we keep it the same (c) we change it
30. 30.🌱 Will these sprout: seeds on wet cotton? (a) does not sprout (b) sprouts
31. 31.🫗 How do we separate mud from water? (a) handpicking (b) winnowing (c) sieving (d) filtering
32. 32.🔮 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
33. 33.True or false: tamarind water is an acid. (a) False (b) True
34. 34.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) muddy water (c) sand and pebbles (d) yeast
35. 35.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the number of drops is kept the same. (a) True (b) False
36. 36.🧺 Which of these is not needed for growing salt crystals? (a) a spoon (b) salt (c) yeast (d) a piece of string
37. 37.True or false: vinegar turns turmeric reddish-brown. (a) False (b) True
38. 38.True or false: a small bowl is needed for the secret lemon message. (a) True (b) False
39. 39.True or false: white paper strips is not needed for the turmeric test. (a) True (b) False
40. 40.🧺 Do we need a magnet for making butter? (a) needed (b) not needed

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