Kitchen Chemistry Experiments Test Worksheet

Science experiments lesson 20: Part 2 test: kitchen chemistry and life · Set 408 · 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 is the odd one out? (a) plain water (b) salt water (c) sugar water (d) orange juice
2. 2.🛟 What should you do after handling muddy water? (a) wipe hands on face (b) lick your fingers (c) nothing is needed (d) wash hands afterwards
3. 3.🌱 Will these sprout: seeds on wet cotton? (a) does not sprout (b) sprouts
4. 4.🫧 Which of these is a base? (a) baking soda water (b) curd (c) plain water (d) lemon juice
5. 5.True or false: hold the plant in soil is a job of the leaves. (a) False (b) True
6. 6.🪴 Which part of a plant does this job: give out water vapour? (a) stem (b) flower (c) roots (d) leaves
7. 7.True or false: turmeric powder is not needed for the leafy bag test. (a) True (b) False
8. 8.🧺 Do we need a balloon for sprouting seeds? (a) needed (b) not needed
9. 9.🍋 Why can’t you see the lemon writing once it dries? (a) the paper ate it (b) dry juice is see-through (c) it turned into air (d) the ink is magnetic
10. 10.🔍 Which is the odd one out? (a) salt water (b) tamarind water (c) baking soda water (d) plain water
11. 11.🧺 Do we need a battery cell for the fizzy balloon? (a) needed (b) not needed
12. 12.🧺 Do we need an empty bottle for the fizzy balloon? (a) needed (b) not needed
13. 13.⚖️ Fair test — does yeast blow up the balloon more with warm water or cold water? Which of these is kept the same? (a) the water temperature (b) the amount of water (c) size of the balloon
14. 14.🔍 Which is the odd one out? (a) baking a cake (b) melting butter (c) browning lemon ink (d) cooking an egg
15. 15.🧺 Which of these is needed for the secret lemon message? (a) a battery cell (b) white paper (c) a balloon (d) a magnet
16. 16.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) turmeric powder (b) a funnel (c) sand and pebbles (d) cotton or cloth
17. 17.True or false: a funnel is needed for the muddy water filter. (a) True (b) False
18. 18.True or false: an empty bottle is needed for the fizzy balloon. (a) False (b) True
19. 19.🌱 Which of these sprouts in a few days? (a) seeds in the freezer (b) boiled seeds (c) seeds on dry cotton (d) wet seeds in the dark
20. 20.🧺 Which of these is not needed for the turmeric test? (a) a dropper or spoon (b) water (c) turmeric powder (d) a battery cell
21. 21.🫧 Is tamarind water an acid, a base or neutral? (a) an acid (b) a base (c) neutral
22. 22.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the colour we see”? (a) we measure it (b) we change it (c) we keep it the same
23. 23.🔮 Predict: sprouts grow in the dark for a week. What colour are their leaves? (a) dark green (b) pale yellow (c) bright red (d) blue
24. 24.🧺 Three of these are needed for the muddy water filter. Which one is NOT needed? (a) muddy water (b) a funnel (c) a clean glass (d) a magnet
25. 25.⚖️ Fair test — do seeds need water to sprout? True or false: the kind of seeds is kept the same. (a) False (b) True
26. 26.⚖️ Fair test — does cold cream turn into butter faster than warm cream? What do we do with “the same jar”? (a) we change it (b) we measure it (c) we keep it the same
27. 27.🧺 Which of these is needed for the fizzy balloon? (a) vinegar (b) a magnet (c) a mirror (d) a seed
28. 28.⚖️ Fair test — do seeds need water to sprout? Which of these is the one thing we change? (a) the number of seeds (b) the kind of seeds (c) how many seeds sprout (d) wet or dry cotton
29. 29.🔍 What do you see inside the plastic bag after a few hours in the sun? (a) salt crystals (b) nothing at all (c) tiny water drops (d) tiny insects
30. 30.⚖️ Fair test — do seeds need water to sprout? True or false: the kind of seeds is what we measure. (a) True (b) False
31. 31.🔍 Which is the odd one out? (a) sugar (b) soil (c) sunlight (d) warmth
32. 32.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: spoons of baking soda is the one thing we change. (a) False (b) True
33. 33.🛟 How should the plastic bag be tied around the branch? (a) with a hot glue gun (b) gently, not too tight (c) as tight as possible (d) with sharp wire
34. 34.🫗 Muddy water is poured through a cloth filter. What stays on the cloth? (a) the water (b) the salt (c) nothing (d) the mud
35. 35.True or false: warm water is not needed for the yeast balloon. (a) True (b) False
36. 36.🧺 Three of these are needed for growing salt crystals. Which one is NOT needed? (a) salt (b) a spoon (c) a shallow dish (d) a magnet
37. 37.🔍 Which is the odd one out? (a) cooking an egg (b) melting ice (c) melting butter (d) folding paper
38. 38.🧺 Which of these is needed for the turmeric test? (a) a magnet (b) a mirror (c) a battery cell (d) turmeric powder
39. 39.🔮 Predict: a yellow curry stain on a shirt is washed with soap. What colour may it turn? (a) white at once (b) green (c) bright blue (d) reddish
40. 40.⚖️ Fair test — does more baking soda blow the balloon up bigger? True or false: the kind of balloon is kept the same. (a) False (b) True

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