Kitchen Chemistry Experiments Test Worksheet

Science experiments lesson 20: Part 2 test: kitchen chemistry and life · Set 781 · 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.🍞 Which of these is something yeast needs? (a) a magnet (b) sugar (c) salt (d) sunlight
2. 2.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is kept the same? (a) the turmeric paper (b) the colour we see (c) the liquid we test
3. 3.🧺 Three of these are needed for the secret lemon message. Which one is NOT needed? (a) turmeric powder (b) an adult with an iron (c) lemon juice (d) white paper
4. 4.True or false: a balloon is not needed for making butter. (a) True (b) False
5. 5.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? What do we do with “the same kind of bag”? (a) we change it (b) we measure it (c) we keep it the same
6. 6.🔍 Muddy water is left still for an hour. What happens to the mud? (a) it sinks to the bottom (b) it floats on top (c) it dissolves (d) it turns to sand
7. 7.🫧 Is vinegar an acid, a base or neutral? (a) a base (b) neutral (c) an acid
8. 8.🧺 Do we need soap solution for the turmeric test? (a) not needed (b) needed
9. 9.🧺 Three of these are needed for the secret lemon message. Which one is NOT needed? (a) a balloon (b) an adult with an iron (c) a cotton bud (d) lemon juice
10. 10.📘 What is yeast? (a) a kind of stone (b) a kind of salt (c) a tiny living fungus (d) a kind of sugar
11. 11.🍋 Which of these steps is a job a child can do? (a) ironing the paper (b) dipping the cotton bud (c) putting the iron away (d) plugging in the iron
12. 12.🔮 Predict: you wait 2 hours instead of 10 minutes. What happens? (a) it turns to bread (b) it shrinks to nothing (c) the balloon is bigger (d) the balloon is smaller
13. 13.🧺 Do we need a mirror for making butter? (a) needed (b) not needed
14. 14.🧺 Do we need yeast for the leafy bag test? (a) needed (b) not needed
15. 15.🔮 Predict: the jar is filled right to the top with cream. What happens? (a) it turns pink (b) it makes salt (c) it is much faster (d) it takes much longer
16. 16.🍞 Which of these is something yeast does not need? (a) a magnet (b) warm water (c) time (d) sugar
17. 17.🧺 Do we need a magnet for the turmeric test? (a) needed (b) not needed
18. 18.🧺 Do we need a balloon for the turmeric test? (a) needed (b) not needed
19. 19.🌱 Will these sprout: seeds on wet cotton? (a) does not sprout (b) sprouts
20. 20.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: how clear the water is is what we measure. (a) False (b) True
21. 21.True or false: sugar from sugar water is done by evaporating. (a) False (b) True
22. 22.🛟 Lemon juice stings cuts and eyes. What should you do after the experiment? (a) rub your eyes (b) lick your fingers (c) skip washing (d) wash your hands
23. 23.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) soap solution (b) yeast (c) lemon juice (d) white paper strips
24. 24.⚖️ Fair test — does cold cream turn into butter faster than warm cream? Which of these is kept the same? (a) how hard we shake (b) the cream temperature (c) time to make butter
25. 25.🧺 Do we need a balloon for sprouting seeds? (a) needed (b) not needed
26. 26.🧺 Which of these is needed for the muddy water filter? (a) a funnel (b) yeast (c) a battery cell (d) a balloon
27. 27.🧂 Does sand dissolve in water? (a) does not dissolve (b) dissolves in water
28. 28.🌱 Is water needed for a seed to sprout? (a) not needed to sprout (b) needed to sprout
29. 29.🧺 Three of these are needed for making butter. Which one is NOT needed? (a) fresh cream (b) cold water to rinse (c) turmeric powder (d) a bowl
30. 30.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the liquid we test”? (a) we keep it the same (b) we change it (c) we measure it
31. 31.🌱 Which of these sprouts in a few days? (a) seeds in the freezer (b) wet seeds in the dark (c) seeds on dry cotton (d) boiled seeds
32. 32.True or false: take in water from soil is a job of the roots. (a) False (b) True
33. 33.🧺 Three of these are needed for the yeast balloon. Which one is NOT needed? (a) a balloon (b) a small bottle (c) dry yeast (d) a mirror
34. 34.True or false: milk turning to curd is a change that can be undone. (a) True (b) False
35. 35.🧺 Do we need cotton wool for sprouting seeds? (a) not needed (b) needed
36. 36.🍞 Which of these is something yeast needs? (a) salt (b) time (c) a magnet (d) vinegar
37. 37.🧺 Which of these is not needed for making butter? (a) a jar with a tight lid (b) a mirror (c) cold water to rinse (d) fresh cream
38. 38.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) muddy water (c) a clean glass (d) turmeric powder
39. 39.🧺 Do we need turmeric powder for making butter? (a) needed (b) not needed
40. 40.🧺 Do we need a mirror for the turmeric test? (a) needed (b) not needed

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