Kitchen Chemistry Experiments Test Worksheet

Science experiments lesson 20: Part 2 test: kitchen chemistry and life · Set 184 · 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 needed for the fizzy balloon? (a) a tray for spills (b) sugar (c) a magnet (d) a comb
2. 2.🧺 Which of these is needed for the fizzy balloon? (a) a battery cell (b) an empty bottle (c) a mirror (d) a seed
3. 3.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) white paper strips (b) water (c) turmeric powder (d) a balloon
4. 4.🔍 Which is the odd one out? (a) warmth (b) salt (c) air (d) water
5. 5.🪴 Which part of a plant does this job: give out water vapour? (a) flower (b) stem (c) leaves (d) roots
6. 6.🧺 Which of these is not needed for the fizzy balloon? (a) a mirror (b) a balloon (c) baking soda (d) a funnel or spoon
7. 7.🧺 Which of these is needed for the yeast balloon? (a) a paper clip (b) a comb (c) turmeric powder (d) dry yeast
8. 8.🧈 Can this change be undone: melting butter? (a) cannot be undone (b) can be undone
9. 9.⚖️ Fair test — do seeds need water to sprout? What do we do with “the same bowls”? (a) we keep it the same (b) we measure it (c) we change it
10. 10.🧺 Which of these is needed for growing salt crystals? (a) turmeric powder (b) a spoon (c) a magnet (d) a balloon
11. 11.🍋 Secret message: who does this step — writing the message? (a) an adult does it (b) a child can do it
12. 12.🧺 Which of these is needed for the muddy water filter? (a) a mirror (b) a magnet (c) yeast (d) a clean glass
13. 13.🧺 Which of these is needed for the yeast balloon? (a) a magnet (b) turmeric powder (c) a balloon (d) a mirror
14. 14.True or false: sunlight is not needed for a seed to sprout. (a) False (b) True
15. 15.⚖️ 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
16. 16.🌱 Which of these is needed for a seed to sprout? (a) salt (b) soil (c) water (d) sugar
17. 17.🔮 Predict: you stop shaking after only one minute. What do you have? (a) butter lumps (b) cheese (c) ghee (d) still runny cream
18. 18.True or false: turmeric powder is needed for the leafy bag test. (a) False (b) True
19. 19.🪴 Through which part does a plant take in water from the soil? (a) the flowers (b) the leaves (c) the fruits (d) the roots
20. 20.🧺 Do we need an empty bottle for the fizzy balloon? (a) not needed (b) needed
21. 21.🧂 Which of these dissolves in water? (a) sugar (b) small pebbles (c) sand (d) cooking oil
22. 22.⚖️ Fair test — does cold cream turn into butter faster than warm cream? True or false: how hard we shake is what we measure. (a) False (b) True
23. 23.📘 What do we call something that changes colour to show an acid or a base? (a) an indicator (b) a prism (c) a magnet (d) a pulley
24. 24.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a mirror (b) muddy water (c) a clean glass (d) cotton or cloth
25. 25.⚖️ 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 keep it the same (b) we change it (c) we measure it
26. 26.True or false: a battery cell is not needed for the fizzy balloon. (a) True (b) False
27. 27.🔮 Predict: the adult irons for only one second. What happens? (a) it gets darker (b) writing stays faint (c) writing turns green (d) the paper floats
28. 28.🛟 Turmeric stains clothes. What should you wear? (a) a white party dress (b) your best clothes (c) your school uniform (d) an old shirt or apron
29. 29.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) a shallow dish (b) warm water (c) turmeric powder (d) a spoon
30. 30.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we measure it (b) we change it (c) we keep it the same
31. 31.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) muddy water (c) a funnel (d) a balloon
32. 32.🧺 Which of these is needed for sprouting seeds? (a) turmeric powder (b) a small bowl (c) a magnet (d) a balloon
33. 33.🛟 What should you do after touching soil or seeds? (a) rub your eyes (b) skip washing (c) wash your hands (d) lick your fingers
34. 34.True or false: air is needed for a seed to sprout. (a) False (b) True
35. 35.🧺 Three of these are needed for the yeast balloon. Which one is NOT needed? (a) sugar (b) a magnet (c) a small bottle (d) dry yeast
36. 36.🌱 Will these sprout: wet seeds in the dark? (a) does not sprout (b) sprouts
37. 37.🛟 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
38. 38.🧺 Which of these is needed for making butter? (a) a balloon (b) yeast (c) fresh cream (d) a mirror
39. 39.🍞 Which of these is something yeast needs? (a) a magnet (b) sugar (c) vinegar (d) salt
40. 40.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a mirror (c) sugar (d) baking soda

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