Kitchen Chemistry Experiments Test Worksheet

Science experiments lesson 20: Part 2 test: kitchen chemistry and life · Set 957 · 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 does not dissolve in water? (a) table salt (b) glucose powder (c) sawdust (d) sugar
2. 2.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “size of the balloon”? (a) we change it (b) we measure it (c) we keep it the same
3. 3.True or false: baking soda water turns turmeric reddish-brown. (a) False (b) True
4. 4.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) size of the balloon (b) spoons of baking soda (c) the same bottle
5. 5.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? Which of these is kept the same? (a) the same muddy water (b) the filter material (c) how clear the water is
6. 6.🛟 What should you do after touching soil or seeds? (a) rub your eyes (b) skip washing (c) lick your fingers (d) wash your hands
7. 7.🧺 Three of these are needed for making butter. Which one is NOT needed? (a) fresh cream (b) a timer (c) a magnet (d) cold water to rinse
8. 8.⚖️ Fair test — does cold cream turn into butter faster than warm cream? True or false: time to make butter is the one thing we change. (a) True (b) False
9. 9.True or false: lemon juice is needed for the secret lemon message. (a) True (b) False
10. 10.🧺 Do we need a mirror for the fizzy balloon? (a) not needed (b) needed
11. 11.🔮 Predict: the jar is filled right to the top with cream. What happens? (a) it turns pink (b) it makes salt (c) it is much faster (d) it takes much longer
12. 12.🛟 Why must children keep their fingers away from the iron? (a) it is sticky (b) it is magnetic (c) it is cold (d) it can burn skin
13. 13.🪴 Which of these is a job of the leaves? (a) take in water from soil (b) give out water vapour (c) hold up the leaves (d) carry water upward
14. 14.🔮 Predict: a plant gets no water for many days in summer. What happens? (a) it grows faster (b) it flowers more (c) it wilts and droops (d) it turns blue
15. 15.🛟 Who should pour the warm water for the crystal experiment? (a) a friend who is running (b) nobody needs to (c) a grown-up (d) the youngest child
16. 16.🛟 What should you do after handling muddy water? (a) lick your fingers (b) wash hands afterwards (c) wipe hands on face (d) nothing is needed
17. 17.⚖️ Fair test — does more baking soda blow the balloon up bigger? What do we do with “the amount of vinegar”? (a) we keep it the same (b) we measure it (c) we change it
18. 18.🧺 Which of these is not needed for growing salt crystals? (a) a spoon (b) a battery cell (c) a piece of string (d) a shallow dish
19. 19.True or false: sugar water is an acid. (a) True (b) False
20. 20.🧺 Which of these is not needed for growing salt crystals? (a) a shallow dish (b) a magnet (c) salt (d) warm water
21. 21.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the number of drops is kept the same. (a) True (b) False
22. 22.🌱 Will these sprout: seeds in the freezer? (a) sprouts (b) does not sprout
23. 23.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a rubber band (b) a mirror (c) a few hours (d) a potted plant
24. 24.True or false: a mirror is needed for the turmeric test. (a) False (b) True
25. 25.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the same glass is kept the same. (a) True (b) False
26. 26.🧈 Can this change be undone: melting ice? (a) can be undone (b) cannot be undone
27. 27.🫧 Which of these is neutral? (a) orange juice (b) vinegar (c) baking soda water (d) salt water
28. 28.True or false: a battery cell is not needed for the leafy bag test. (a) True (b) False
29. 29.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) white paper strips (b) a mirror (c) a dropper or spoon (d) turmeric powder
30. 30.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) a clean glass (b) a funnel (c) a magnet (d) sand and pebbles
31. 31.🌱 Which of these does not sprout? (a) wet seeds by a window (b) seeds on dry cotton (c) seeds on wet cotton (d) wet seeds in the dark
32. 32.🍋 Which of these steps is a job a child can do? (a) cutting the lemon (b) plugging in the iron (c) putting the iron away (d) reading the message
33. 33.True or false: a mirror is not needed for the muddy water filter. (a) False (b) True
34. 34.True or false: cotton wool is not needed for sprouting seeds. (a) True (b) False
35. 35.True or false: a balloon is needed for the muddy water filter. (a) True (b) False
36. 36.🧺 Do we need warm water for the yeast balloon? (a) not needed (b) needed
37. 37.🧺 Which of these is not needed for the muddy water filter? (a) cotton or cloth (b) a balloon (c) sand and pebbles (d) muddy water
38. 38.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the turmeric paper”? (a) we change it (b) we measure it (c) we keep it the same
39. 39.🧺 Which of these is needed for the secret lemon message? (a) white paper (b) yeast (c) a mirror (d) a battery cell
40. 40.True or false: sunlight is not needed for the leafy bag test. (a) True (b) False

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