Kitchen Chemistry Experiments Test Worksheet

Science experiments lesson 20: Part 2 test: kitchen chemistry and life · Set 729 · 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.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) sunlight (b) a potted plant (c) yeast (d) a rubber band
2. 2.🧺 Do we need a mirror for the muddy water filter? (a) not needed (b) needed
3. 3.True or false: a battery cell is needed for the muddy water filter. (a) True (b) False
4. 4.🧺 Which of these is not needed for making butter? (a) a magnet (b) cold water to rinse (c) a timer (d) fresh cream
5. 5.True or false: small pebbles dissolves in water. (a) False (b) True
6. 6.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) spoons of baking soda (b) the kind of balloon (c) the same bottle (d) size of the balloon
7. 7.🧂 Which of these does not dissolve in water? (a) table salt (b) glucose powder (c) food colour (d) cooking oil
8. 8.🪴 Which part of a plant does this job: give out water vapour? (a) roots (b) leaves (c) flower (d) stem
9. 9.🪴 Which part of a plant does this job: make seeds? (a) roots (b) stem (c) flower (d) leaves
10. 10.🍞 Which of these is something yeast does not need? (a) sugar (b) warm water (c) time (d) sunlight
11. 11.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? Which of these is what we measure? (a) the time we wait (b) amount of water drops (c) the same kind of bag (d) sun or shade
12. 12.🛟 Why must children keep their fingers away from the iron? (a) it can burn skin (b) it is sticky (c) it is cold (d) it is magnetic
13. 13.🫗 How do we separate husk from rice grain? (a) handpicking (b) evaporating (c) winnowing (d) sieving
14. 14.🍞 Does yeast need time to make gas? (a) yeast needs it (b) yeast does not need it
15. 15.🫧 Is orange juice an acid, a base or neutral? (a) an acid (b) neutral (c) a base
16. 16.⚖️ Fair test — does yeast blow up the balloon more with warm water or cold water? True or false: size of the balloon is the one thing we change. (a) True (b) False
17. 17.True or false: vinegar is needed for the leafy bag test. (a) False (b) True
18. 18.🛟 After the yeast experiment, what should you do with the mixture? (a) keep it for a month (b) pour it down the sink (c) put it in your mouth (d) throw it at a wall
19. 19.🧺 Three of these are needed for sprouting seeds. Which one is NOT needed? (a) cotton wool (b) a few days (c) moong seeds (d) yeast
20. 20.⚖️ Fair test — does lemon juice or orange juice make darker secret writing? What do we do with “the same paper”? (a) we measure it (b) we change it (c) we keep it the same
21. 21.True or false: browning lemon ink is a change that can be undone. (a) False (b) True
22. 22.True or false: ironing the paper is a job a child can do. (a) True (b) False
23. 23.🌱 Will these sprout: seeds on dry cotton? (a) sprouts (b) does not sprout
24. 24.🧈 Why does shaking cream make butter? (a) the jar adds butter (b) fat bits stick together (c) shaking adds salt (d) the lid is warm
25. 25.🧺 Which of these is needed for the turmeric test? (a) turmeric powder (b) yeast (c) a magnet (d) a battery cell
26. 26.🛟 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
27. 27.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is what we measure. (a) True (b) False
28. 28.🔍 Which is the odd one out? (a) chalk powder (b) sawdust (c) sand (d) table salt
29. 29.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “spoons of baking soda”? (a) we measure it (b) we change it (c) we keep it the same
30. 30.🧺 Do we need a battery cell for the muddy water filter? (a) needed (b) not needed
31. 31.⚖️ Fair test — do seeds need water to sprout? What do we do with “the number of seeds”? (a) we measure it (b) we change it (c) we keep it the same
32. 32.🪴 Which of these is a job of the roots? (a) hold up the leaves (b) carry water upward (c) take in water from soil (d) make food in sunlight
33. 33.⚖️ Fair test — does cold cream turn into butter faster than warm cream? True or false: time to make butter is kept the same. (a) False (b) True
34. 34.True or false: a mirror is needed for making butter. (a) False (b) True
35. 35.🧺 Do we need white paper for the secret lemon message? (a) needed (b) not needed
36. 36.🔮 Predict: you stop shaking after only one minute. What do you have? (a) butter lumps (b) still runny cream (c) ghee (d) cheese
37. 37.🧺 Which of these is not needed for the leafy bag test? (a) sunlight (b) a clear plastic bag (c) a mirror (d) a rubber band
38. 38.🫧 Is detergent water an acid, a base or neutral? (a) a base (b) an acid (c) neutral
39. 39.🔮 Predict: the jar is filled right to the top with cream. What happens? (a) it is much faster (b) it makes salt (c) it takes much longer (d) it turns pink
40. 40.🌱 Is air needed for a seed to sprout? (a) not needed to sprout (b) needed to sprout

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids