Kitchen Chemistry Experiments Test Worksheet

Science experiments lesson 20: Part 2 test: kitchen chemistry and life · Set 273 · 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) a clear plastic bag (b) sunlight (c) vinegar (d) a potted plant
2. 2.🔮 Predict: a plant gets no water for many days in summer. What happens? (a) it flowers more (b) it grows faster (c) it wilts and droops (d) it turns blue
3. 3.🧈 Which tool is used in many Indian homes to churn curd into butter? (a) a sieve (b) a mathani (churner) (c) a pressure cooker (d) a rolling pin
4. 4.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? What do we do with “the time we wait”? (a) we measure it (b) we keep it the same (c) we change it
5. 5.True or false: soap solution turns turmeric reddish-brown. (a) False (b) True
6. 6.🔮 Predict: turmeric paper is dipped in baking soda water. What colour does it turn? (a) reddish-brown (b) it stays yellow (c) it turns green (d) it turns blue
7. 7.True or false: warmth is needed for a seed to sprout. (a) True (b) False
8. 8.True or false: plugging in the iron is a job for an adult. (a) True (b) False
9. 9.⚖️ 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) amount of water drops (b) the same kind of bag (c) sun or shade (d) the kind of plant
10. 10.🔍 Which is the odd one out? (a) curd (b) lemon juice (c) tamarind water (d) sugar water
11. 11.🫧 Which of these is an acid? (a) lemon juice (b) baking soda water (c) soap solution (d) salt water
12. 12.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we keep it the same (b) we measure it (c) we change it
13. 13.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? True or false: sun or shade is the one thing we change. (a) False (b) True
14. 14.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the turmeric paper”? (a) we change it (b) we keep it the same (c) we measure it
15. 15.🧺 Do we need a funnel or spoon for the fizzy balloon? (a) needed (b) not needed
16. 16.🧺 Which of these is not needed for the fizzy balloon? (a) vinegar (b) a balloon (c) a tray for spills (d) a battery cell
17. 17.🧺 Three of these are needed for the yeast balloon. Which one is NOT needed? (a) a balloon (b) a battery cell (c) warm water (d) a small bottle
18. 18.🛟 Which rule keeps the turmeric test safe? (a) mix bathroom cleaners (b) sniff each bottle hard (c) use only kitchen items (d) sip each liquid
19. 19.🔮 Predict: sprouts grow in the dark for a week. What colour are their leaves? (a) pale yellow (b) blue (c) bright red (d) dark green
20. 20.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) lemon juice (b) water (c) a battery cell (d) white paper strips
21. 21.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) cotton or cloth (b) a funnel (c) a magnet (d) sand and pebbles
22. 22.🪴 Where did the water inside the bag come from? (a) the rain (b) the rubber band (c) the plastic (d) the leaves
23. 23.True or false: a balloon is needed for making butter. (a) False (b) True
24. 24.🔍 Which is the odd one out? (a) sugar water (b) lemon juice (c) salt water (d) plain water
25. 25.🛟 What should you do after handling muddy water? (a) wash hands afterwards (b) wipe hands on face (c) nothing is needed (d) lick your fingers
26. 26.🛟 Who should pour the warm water for the crystal experiment? (a) a grown-up (b) the youngest child (c) a friend who is running (d) nobody needs to
27. 27.True or false: muddy water is not needed for the muddy water filter. (a) True (b) False
28. 28.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) an empty bottle (b) sugar (c) a tray for spills (d) a balloon
29. 29.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is what we measure? (a) the same muddy water (b) the same funnel (c) how clear the water is (d) the same glass
30. 30.🌱 Which of these is needed for a seed to sprout? (a) salt (b) sunlight (c) soil (d) air
31. 31.True or false: chalk powder dissolves in water. (a) True (b) False
32. 32.🛟 The water for the yeast should be ___. (a) warm, not hot (b) very salty (c) ice cold (d) boiling hot
33. 33.True or false: a rubber band is not needed for the leafy bag test. (a) False (b) True
34. 34.🟡 Which of these keeps turmeric yellow? (a) sugar water (b) detergent water (c) baking soda water (d) soap solution
35. 35.⚖️ Fair test — does yeast blow up the balloon more with warm water or cold water? True or false: the same bottles is the one thing we change. (a) True (b) False
36. 36.⚖️ Fair test — do seeds need water to sprout? True or false: how many seeds sprout is what we measure. (a) True (b) False
37. 37.🧺 Do we need a balloon for making butter? (a) not needed (b) needed
38. 38.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the liquid we test”? (a) we change it (b) we keep it the same (c) we measure it
39. 39.True or false: dipping the cotton bud is a job a child can do. (a) False (b) True
40. 40.True or false: warm water is not needed for growing salt crystals. (a) False (b) True

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