Kitchen Chemistry Experiments Test Worksheet

Science experiments lesson 20: Part 2 test: kitchen chemistry and life · Set 949 · 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 is the odd one out? (a) glucose powder (b) table salt (c) chalk powder (d) baking soda
2. 2.True or false: turmeric powder is needed for making butter. (a) False (b) True
3. 3.🔮 Predict: you stop shaking after only one minute. What do you have? (a) cheese (b) ghee (c) butter lumps (d) still runny cream
4. 4.🧺 Which of these is not needed for the fizzy balloon? (a) a tray for spills (b) sugar (c) an empty bottle (d) baking soda
5. 5.⚖️ Fair test — does cold cream turn into butter faster than warm cream? True or false: how hard we shake is the one thing we change. (a) True (b) False
6. 6.🛟 Who should pour the warm water for the crystal experiment? (a) a friend who is running (b) nobody needs to (c) the youngest child (d) a grown-up
7. 7.🧺 Do we need soap solution for the turmeric test? (a) not needed (b) needed
8. 8.🧺 Which of these is needed for the turmeric test? (a) a mirror (b) yeast (c) a dropper or spoon (d) a magnet
9. 9.🌱 Which of these is not needed for a seed to sprout? (a) air (b) water (c) warmth (d) sunlight
10. 10.True or false: reading the message is a job for an adult. (a) False (b) True
11. 11.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) yeast (c) cotton or cloth (d) sand and pebbles
12. 12.True or false: give out water vapour is a job of the leaves. (a) False (b) True
13. 13.⚖️ Fair test — do seeds need water to sprout? True or false: the same place is what we measure. (a) True (b) False
14. 14.🍋 What colour does the lemon writing turn when an adult warms it? (a) brown (b) blue (c) green (d) white
15. 15.🧺 Which of these is needed for the secret lemon message? (a) yeast (b) a battery cell (c) white paper (d) turmeric powder
16. 16.🌱 Which of these is not needed for a seed to sprout? (a) water (b) soil (c) warmth (d) air
17. 17.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) a magnet (c) baking soda (d) a tray for spills
18. 18.🧺 Which of these is needed for sprouting seeds? (a) moong seeds (b) a battery cell (c) turmeric powder (d) a mirror
19. 19.🫧 Is salt water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
20. 20.🧺 Three of these are needed for the secret lemon message. Which one is NOT needed? (a) a small bowl (b) white paper (c) an adult with an iron (d) a battery cell
21. 21.True or false: baking soda is needed for the fizzy balloon. (a) False (b) True
22. 22.🛟 Why must a plastic bag never go over anyone’s head? (a) it can block breathing (b) it changes colour (c) it gets wet (d) it is too big
23. 23.🧺 Three of these are needed for the secret lemon message. Which one is NOT needed? (a) white paper (b) a small bowl (c) turmeric powder (d) an adult with an iron
24. 24.🫗 Is filtered pond water safe to drink? (a) yes, if it is cold (b) no, germs may stay (c) yes, always (d) yes, if it is clear
25. 25.🛟 Which safety rule fits the fizzy balloon experiment? (a) seal it in a glass jar (b) keep it away from eyes (c) put it in your mouth (d) shake it near your face
26. 26.⚖️ Fair test — does cold cream turn into butter faster than warm cream? What do we do with “the cream temperature”? (a) we measure it (b) we keep it the same (c) we change it
27. 27.🛟 Where should you keep the crystal dish while it dries? (a) in a busy doorway (b) on the edge of a table (c) next to the baby (d) safe from small children
28. 28.⚖️ Fair test — does cold cream turn into butter faster than warm cream? What do we do with “the amount of cream”? (a) we keep it the same (b) we measure it (c) we change it
29. 29.🧈 What is the watery liquid left after the butter forms? (a) honey (b) buttermilk (c) vinegar (d) oil
30. 30.🧺 Three of these are needed for sprouting seeds. Which one is NOT needed? (a) moong seeds (b) water (c) a battery cell (d) cotton wool
31. 31.🔮 Predict: you use plain water instead of vinegar. What happens? (a) it turns to honey (b) very little fizzing (c) the balloon bursts (d) a huge eruption
32. 32.🔮 Predict: you wait 2 hours instead of 10 minutes. What happens? (a) the balloon is smaller (b) it turns to bread (c) it shrinks to nothing (d) the balloon is bigger
33. 33.True or false: salt is something yeast does not need. (a) True (b) False
34. 34.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? Which of these is the one thing we change? (a) the amount of salt (b) the amount of water (c) sunny or shady place (d) the kind of salt
35. 35.🧺 Three of these are needed for making butter. Which one is NOT needed? (a) cold water to rinse (b) fresh cream (c) a jar with a tight lid (d) yeast
36. 36.🔮 Predict: you cover the dish so no water can escape. What happens? (a) crystals grow faster (b) it fizzes (c) few or no crystals (d) it turns sweet
37. 37.📘 Vinegar is an acid and baking soda is a base. What happens when they meet? (a) they freeze (b) they react (c) they float apart (d) they become magnets
38. 38.⚖️ 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 measure it (b) we change it (c) we keep it the same
39. 39.🍋 Secret message: who does this step — reading the message? (a) a child can do it (b) an adult does it
40. 40.⚖️ Fair test — does lemon juice or orange juice make darker secret writing? What do we do with “the ironing time”? (a) we measure it (b) we change it (c) we keep it the same

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