Kitchen Chemistry Experiments Test Worksheet

Science experiments lesson 20: Part 2 test: kitchen chemistry and life · Set 54 · 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 neutral? (a) soap solution (b) orange juice (c) sugar water (d) baking soda water
2. 2.⚖️ Fair test — does yeast blow up the balloon more with warm water or cold water? Which of these is the one thing we change? (a) the water temperature (b) the amount of water (c) the amount of sugar (d) the amount of yeast
3. 3.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) wipe hands on face (c) lick your fingers (d) nothing is needed
4. 4.🧺 Do we need moong seeds for sprouting seeds? (a) not needed (b) needed
5. 5.⚖️ 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
6. 6.⚖️ Fair test — does yeast blow up the balloon more with warm water or cold water? True or false: the same bottles is what we measure. (a) True (b) False
7. 7.🫧 Is detergent water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
8. 8.🫧 Which of these is neutral? (a) salt water (b) vinegar (c) baking soda water (d) tamarind water
9. 9.🔮 Predict: you wait 2 hours instead of 10 minutes. What happens? (a) the balloon is smaller (b) it turns to bread (c) the balloon is bigger (d) it shrinks to nothing
10. 10.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? Which of these is kept the same? (a) sun or shade (b) amount of water drops (c) the kind of plant
11. 11.True or false: putting the iron away is a job for an adult. (a) True (b) False
12. 12.⚖️ Fair test — does lemon juice or orange juice make darker secret writing? Which of these is kept the same? (a) the kind of juice (b) how dark the writing is (c) the ironing time
13. 13.🧺 Which of these is needed for the secret lemon message? (a) a magnet (b) lemon juice (c) a battery cell (d) a balloon
14. 14.True or false: a battery cell is not needed for the fizzy balloon. (a) False (b) True
15. 15.🧺 Do we need white paper for the secret lemon message? (a) not needed (b) needed
16. 16.True or false: reading the message is a job a child can do. (a) False (b) True
17. 17.🌱 Is soil needed for a seed to sprout? (a) not needed to sprout (b) needed to sprout
18. 18.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) the same bottle (b) size of the balloon (c) spoons of baking soda
19. 19.True or false: a shallow dish is needed for growing salt crystals. (a) True (b) False
20. 20.🍋 Which of these steps is a job for an adult? (a) letting the paper dry (b) reading the message (c) ironing the paper (d) dipping the cotton bud
21. 21.🧺 Do we need fresh cream for making butter? (a) needed (b) not needed
22. 22.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? Which of these is what we measure? (a) the number of drops (b) the liquid we test (c) the colour we see (d) the light we look in
23. 23.⚖️ Fair test — does lemon juice or orange juice make darker secret writing? What do we do with “the ironing time”? (a) we keep it the same (b) we measure it (c) we change it
24. 24.True or false: sunlight is needed for the leafy bag test. (a) True (b) False
25. 25.🧺 Do we need a tray for spills for the fizzy balloon? (a) needed (b) not needed
26. 26.🫧 Is vinegar an acid, a base or neutral? (a) a base (b) neutral (c) an acid
27. 27.🫧 Is tamarind water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
28. 28.True or false: turmeric powder is needed for the yeast balloon. (a) True (b) False
29. 29.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) spoons of baking soda (b) the amount of vinegar (c) size of the balloon
30. 30.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the liquid we test”? (a) we measure it (b) we change it (c) we keep it the same
31. 31.🧺 Do we need cold water to rinse for making butter? (a) not needed (b) needed
32. 32.🧺 Which of these is needed for the leafy bag test? (a) a battery cell (b) turmeric powder (c) a rubber band (d) a magnet
33. 33.🔍 Which is the odd one out? (a) sugar water (b) tamarind water (c) vinegar (d) detergent water
34. 34.🧺 Which of these is needed for the turmeric test? (a) a balloon (b) a comb (c) water (d) yeast
35. 35.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a funnel (b) a clean glass (c) sand and pebbles (d) turmeric powder
36. 36.🧺 Three of these are needed for sprouting seeds. Which one is NOT needed? (a) a battery cell (b) a small bowl (c) a few days (d) moong seeds
37. 37.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the same bottle”? (a) we keep it the same (b) we measure it (c) we change it
38. 38.⚖️ Fair test — does yeast blow up the balloon more with warm water or cold water? What do we do with “the water temperature”? (a) we change it (b) we keep it the same (c) we measure it
39. 39.🧺 Three of these are needed for sprouting seeds. Which one is NOT needed? (a) a small bowl (b) water (c) a few days (d) yeast
40. 40.🧺 Do we need a bowl for making butter? (a) not needed (b) needed

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