Kitchen Chemistry Experiments Test Worksheet

Science experiments lesson 20: Part 2 test: kitchen chemistry and life · Set 763 · 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 turmeric test. Which one is NOT needed? (a) turmeric powder (b) yeast (c) soap solution (d) a dropper or spoon
2. 2.🫧 Is detergent water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
3. 3.True or false: a bowl is needed for making butter. (a) True (b) False
4. 4.🍞 Which of these is something yeast does not need? (a) time (b) warm water (c) vinegar (d) sugar
5. 5.⚖️ Fair test — does cold cream turn into butter faster than warm cream? True or false: the cream temperature is the one thing we change. (a) False (b) True
6. 6.🧺 Do we need a cotton bud for the secret lemon message? (a) not needed (b) needed
7. 7.🔍 Which is the odd one out? (a) melting butter (b) folding paper (c) melting ice (d) rusting iron
8. 8.🛟 Which rule keeps the turmeric test safe? (a) mix bathroom cleaners (b) sip each liquid (c) sniff each bottle hard (d) use only kitchen items
9. 9.⚖️ Fair test — do seeds need water to sprout? True or false: the same bowls is the one thing we change. (a) True (b) False
10. 10.🧺 Three of these are needed for the yeast balloon. Which one is NOT needed? (a) a balloon (b) a small bottle (c) sugar (d) a battery cell
11. 11.🧺 Which of these is not needed for making butter? (a) a timer (b) a jar with a tight lid (c) a battery cell (d) a bowl
12. 12.🍋 Secret message: who does this step — cutting the lemon? (a) a child can do it (b) an adult does it
13. 13.🧺 Do we need white paper for the secret lemon message? (a) needed (b) not needed
14. 14.True or false: a rubber band is not needed for the leafy bag test. (a) False (b) True
15. 15.True or false: a battery cell is not needed for the muddy water filter. (a) False (b) True
16. 16.⚖️ Fair test — does cold cream turn into butter faster than warm cream? What do we do with “time to make butter”? (a) we measure it (b) we keep it the same (c) we change it
17. 17.🧈 Which of these is a change that cannot be undone? (a) rusting iron (b) dissolving salt (c) folding paper (d) freezing water
18. 18.🧺 Which of these is not needed for the fizzy balloon? (a) a magnet (b) a balloon (c) an empty bottle (d) a tray for spills
19. 19.🧺 Which of these is needed for the yeast balloon? (a) a magnet (b) turmeric powder (c) a mirror (d) dry yeast
20. 20.🧺 Three of these are needed for the secret lemon message. Which one is NOT needed? (a) a small bowl (b) a cotton bud (c) lemon juice (d) yeast
21. 21.True or false: milk turning to curd is a change that can be undone. (a) False (b) True
22. 22.🌱 Will these sprout: seeds on dry cotton? (a) does not sprout (b) sprouts
23. 23.True or false: a battery cell is needed for the leafy bag test. (a) False (b) True
24. 24.🧺 Which of these is not needed for the muddy water filter? (a) sand and pebbles (b) a clean glass (c) muddy water (d) turmeric powder
25. 25.🧈 Which of these is a change that can be undone? (a) baking a cake (b) dissolving salt (c) browning lemon ink (d) milk turning to curd
26. 26.🌱 Why do the seeds on dry cotton not sprout? (a) they have no soil (b) they are too wet (c) they have no water (d) they have no salt
27. 27.🔍 Which is the odd one out? (a) sand (b) sawdust (c) chalk powder (d) glucose powder
28. 28.📘 What do we call something that changes colour to show an acid or a base? (a) an indicator (b) a pulley (c) a magnet (d) a prism
29. 29.🧺 Do we need vinegar for the fizzy balloon? (a) not needed (b) needed
30. 30.🧺 Which of these is not needed for the fizzy balloon? (a) a funnel or spoon (b) an empty bottle (c) sugar (d) vinegar
31. 31.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a funnel (c) a clean glass (d) a magnet
32. 32.🧺 Which of these is needed for growing salt crystals? (a) yeast (b) a battery cell (c) turmeric powder (d) warm water
33. 33.🧺 Three of these are needed for the secret lemon message. Which one is NOT needed? (a) an adult with an iron (b) a balloon (c) lemon juice (d) white paper
34. 34.🔮 Predict: you stop shaking after only one minute. What do you have? (a) still runny cream (b) ghee (c) butter lumps (d) cheese
35. 35.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the kind of balloon”? (a) we measure it (b) we keep it the same (c) we change it
36. 36.⚖️ 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 same kind of bag (b) the time we wait (c) amount of water drops (d) the size of the plant
37. 37.🧺 Do we need yeast for the secret lemon message? (a) not needed (b) needed
38. 38.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the turmeric paper”? (a) we measure it (b) we keep it the same (c) we change it
39. 39.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is the one thing we change? (a) the filter material (b) the same glass (c) how clear the water is (d) the same funnel
40. 40.🍞 Why do we add sugar to the yeast? (a) to make it sweet (b) to colour it (c) to make it heavy (d) it is food for yeast

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