Kitchen Chemistry Experiments Test Worksheet

Science experiments lesson 20: Part 2 test: kitchen chemistry and life · Set 656 · 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.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the same bottle is kept the same. (a) True (b) False
2. 2.True or false: plugging in the iron is a job a child can do. (a) True (b) False
3. 3.🧺 Do we need turmeric powder for the yeast balloon? (a) not needed (b) needed
4. 4.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? Which of these is the one thing we change? (a) the same kind of bag (b) sun or shade (c) the kind of plant (d) the time we wait
5. 5.🧺 Do we need a battery cell for the leafy bag test? (a) not needed (b) needed
6. 6.🔍 Which is the odd one out? (a) vinegar (b) lemon juice (c) orange juice (d) detergent water
7. 7.🛟 After the yeast experiment, what should you do with the mixture? (a) put it in your mouth (b) throw it at a wall (c) keep it for a month (d) pour it down the sink
8. 8.🧈 Can this change be undone: baking a cake? (a) cannot be undone (b) can be undone
9. 9.🧺 Three of these are needed for the yeast balloon. Which one is NOT needed? (a) warm water (b) dry yeast (c) a magnet (d) a small bottle
10. 10.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same funnel is kept the same. (a) True (b) False
11. 11.🧺 Which of these is not needed for making butter? (a) a bowl (b) a jar with a tight lid (c) fresh cream (d) a balloon
12. 12.🔍 Which is the odd one out? (a) plain water (b) lemon juice (c) baking soda water (d) vinegar
13. 13.🧺 Three of these are needed for making butter. Which one is NOT needed? (a) turmeric powder (b) a bowl (c) a timer (d) cold water to rinse
14. 14.True or false: a few days is not needed for sprouting seeds. (a) False (b) True
15. 15.🧺 Do we need a battery cell for sprouting seeds? (a) needed (b) not needed
16. 16.True or false: a bowl is needed for making butter. (a) True (b) False
17. 17.🧺 Which of these is not needed for sprouting seeds? (a) moong seeds (b) a battery cell (c) a small bowl (d) cotton wool
18. 18.True or false: soap solution is not needed for the turmeric test. (a) False (b) True
19. 19.🪴 Which part of a plant does this job: hold up the leaves? (a) leaves (b) stem (c) roots (d) flower
20. 20.🪴 Which of these is a job of the flower? (a) hold the plant in soil (b) carry water upward (c) make seeds (d) hold up the leaves
21. 21.True or false: plain water is a base. (a) True (b) False
22. 22.🍞 Which of these is something yeast needs? (a) a magnet (b) time (c) sunlight (d) salt
23. 23.🧈 Can this change be undone: melting ice? (a) cannot be undone (b) can be undone
24. 24.True or false: take in water from soil is a job of the flower. (a) True (b) False
25. 25.⚖️ Fair test — does yeast blow up the balloon more with warm water or cold water? Which of these is kept the same? (a) the amount of yeast (b) the water temperature (c) size of the balloon
26. 26.🧈 What is the watery liquid left after the butter forms? (a) oil (b) buttermilk (c) vinegar (d) honey
27. 27.🧺 Which of these is needed for the turmeric test? (a) a battery cell (b) a mirror (c) a balloon (d) lemon juice
28. 28.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) vinegar (b) sugar (c) a tray for spills (d) a funnel or spoon
29. 29.🔮 Predict: you filter salty water through cloth. Does the salt stay on the cloth? (a) it turns to sand (b) it turns to sugar (c) no, salt passes through (d) yes, all of it
30. 30.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) sand and pebbles (b) a funnel (c) cotton or cloth (d) a balloon
31. 31.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a battery cell (b) a potted plant (c) a rubber band (d) sunlight
32. 32.🫧 Is salt water an acid, a base or neutral? (a) an acid (b) neutral (c) a base
33. 33.🍋 Which of these steps is a job for an adult? (a) letting the paper dry (b) putting the iron away (c) dipping the cotton bud (d) reading the message
34. 34.⚖️ Fair test — do salt crystals form faster on a sunny windowsill or in a shady cupboard? What do we do with “the kind of salt”? (a) we measure it (b) we keep it the same (c) we change it
35. 35.🧺 Do we need turmeric powder for growing salt crystals? (a) not needed (b) needed
36. 36.⚖️ Fair test — does yeast blow up the balloon more with warm water or cold water? True or false: the amount of water is what we measure. (a) True (b) False
37. 37.True or false: a few hours is not needed for the leafy bag test. (a) False (b) True
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 change it (b) we measure it (c) we keep it the same
39. 39.🧺 Do we need a balloon for sprouting seeds? (a) needed (b) not needed
40. 40.🔍 Which is the odd one out? (a) warmth (b) salt (c) water (d) air

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