Kitchen Chemistry Experiments Test Worksheet

Science experiments lesson 20: Part 2 test: kitchen chemistry and life · Set 27 · 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 not needed for the turmeric test? (a) lemon juice (b) white paper strips (c) a magnet (d) a dropper or spoon
2. 2.🔍 Which is the odd one out? (a) table salt (b) glucose powder (c) baking soda (d) sand
3. 3.🔍 Which is the odd one out? (a) cooking oil (b) baking soda (c) sand (d) small pebbles
4. 4.True or false: sugar is not needed for the fizzy balloon. (a) False (b) True
5. 5.🫧 Is vinegar an acid, a base or neutral? (a) a base (b) neutral (c) an acid
6. 6.🧺 Do we need a balloon for sprouting seeds? (a) needed (b) not needed
7. 7.🧺 Which of these is not needed for the fizzy balloon? (a) baking soda (b) vinegar (c) a magnet (d) a balloon
8. 8.🧺 Which of these is not needed for the secret lemon message? (a) a cotton bud (b) a battery cell (c) lemon juice (d) an adult with an iron
9. 9.🟡 Turmeric paper meets lemon juice. What happens? (a) stays yellow (b) turns reddish-brown
10. 10.True or false: a cotton bud is not needed for the secret lemon message. (a) True (b) False
11. 11.📘 What do we call a seed starting to grow? (a) evaporation (b) condensation (c) germination (d) pollination
12. 12.True or false: a paper clip is not needed for the yeast balloon. (a) False (b) True
13. 13.True or false: milk turning to curd is a change that can be undone. (a) False (b) True
14. 14.🔍 Which is the odd one out? (a) salt (b) air (c) water (d) warmth
15. 15.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is kept the same? (a) size of the balloon (b) the same bottle (c) spoons of baking soda
16. 16.🛟 Some seeds from shops are coated with chemicals. What is the safe rule? (a) eat a few to check (b) feed them to pets (c) throw them at friends (d) never put seeds in mouth
17. 17.🫧 Is tamarind water an acid, a base or neutral? (a) a base (b) neutral (c) an acid
18. 18.🧺 Which of these is not needed for the muddy water filter? (a) muddy water (b) a funnel (c) a clean glass (d) a battery cell
19. 19.True or false: a battery cell is not needed for the yeast balloon. (a) True (b) False
20. 20.⚖️ Fair test — does cold cream turn into butter faster than warm cream? What do we do with “the cream temperature”? (a) we measure it (b) we change it (c) we keep it the same
21. 21.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? True or false: the light we look in is the one thing we change. (a) True (b) False
22. 22.🍞 Why does yeast work slowly in cold water? (a) cold kills sugar (b) cold water is heavy (c) cold makes it pink (d) cold slows yeast down
23. 23.🧺 Three of these are needed for the fizzy balloon. Which one is NOT needed? (a) a funnel or spoon (b) a balloon (c) a mirror (d) an empty bottle
24. 24.True or false: sugar is needed for a seed to sprout. (a) False (b) True
25. 25.🔍 Which is the odd one out? (a) warm water (b) sunlight (c) time (d) sugar
26. 26.True or false: an empty bottle is not needed for the fizzy balloon. (a) True (b) False
27. 27.🍋 Secret message: who does this step — putting the iron away? (a) a child can do it (b) an adult does it
28. 28.🧺 Which of these is needed for the yeast balloon? (a) a comb (b) a magnet (c) a mirror (d) a small bottle
29. 29.🧺 Which of these is needed for sprouting seeds? (a) a small bowl (b) a balloon (c) a magnet (d) yeast
30. 30.🧺 Which of these is needed for the leafy bag test? (a) turmeric powder (b) sunlight (c) a mirror (d) a battery cell
31. 31.🫗 How do we separate sugar from sugar water? (a) filtering (b) sieving (c) handpicking (d) evaporating
32. 32.🔍 Which is the odd one out? (a) time (b) warm water (c) sugar (d) vinegar
33. 33.🌱 Which of these is not needed for a seed to sprout? (a) water (b) sugar (c) warmth (d) air
34. 34.🧺 Three of these are needed for the secret lemon message. Which one is NOT needed? (a) a small bowl (b) an adult with an iron (c) lemon juice (d) turmeric powder
35. 35.⚖️ Fair test — does cold cream turn into butter faster than warm cream? True or false: the amount of cream is the one thing we change. (a) True (b) False
36. 36.🧺 Which of these is needed for sprouting seeds? (a) yeast (b) water (c) a mirror (d) a battery cell
37. 37.🧺 Three of these are needed for sprouting seeds. Which one is NOT needed? (a) moong seeds (b) a magnet (c) a few days (d) cotton wool
38. 38.🫧 Which of these is neutral? (a) baking soda water (b) curd (c) plain water (d) detergent water
39. 39.True or false: a small bowl is needed for sprouting seeds. (a) False (b) True
40. 40.🧺 Which of these is needed for the secret lemon message? (a) a small bowl (b) a mirror (c) a magnet (d) a balloon

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