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Kitchen Chemistry Experiments Test Worksheet

Science experiments lesson 20: Part 2 test: kitchen chemistry and life · Set 931 · 40 questions
TalentJR

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.

NameDateTime takenScore ___ / 40
  1. 1.True or false: a battery cell is not needed for the yeast balloon. (a) True (b) False
  2. 2.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? What do we do with “the same funnel”? (a) we keep it the same (b) we change it (c) we measure it
  3. 3.True or false: tamarind water keeps turmeric yellow. (a) True (b) False
  4. 4.🧺 Three of these are needed for sprouting seeds. Which one is NOT needed? (a) cotton wool (b) moong seeds (c) a small bowl (d) a magnet
  5. 5.🧺 Do we need muddy water for the muddy water filter? (a) not needed (b) needed
  6. 6.🧺 Which of these is needed for growing salt crystals? (a) a battery cell (b) a shallow dish (c) yeast (d) a magnet
  7. 7.🧺 Do we need a small bowl for the secret lemon message? (a) needed (b) not needed
  8. 8.⚖️ Fair test — does lemon juice or orange juice make darker secret writing? True or false: the same cotton bud is kept the same. (a) True (b) False
  9. 9.⚖️ Fair test — do seeds need water to sprout? What do we do with “how many seeds sprout”? (a) we change it (b) we measure it (c) we keep it the same
  10. 10.⚖️ Fair test — do seeds need water to sprout? True or false: wet or dry cotton is the one thing we change. (a) False (b) True
  11. 11.True or false: a paper clip is needed for the yeast balloon. (a) True (b) False
  12. 12.🧺 Do we need a magnet for the leafy bag test? (a) not needed (b) needed
  13. 13.True or false: wet seeds by a window sprouts in a few days. (a) False (b) True
  14. 14.🔮 Predict: you pour muddy water through two layers of cloth instead of one. The water comes out ___. (a) muddier (b) clearer (c) hot (d) salty
  15. 15.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a few hours (b) a clear plastic bag (c) a potted plant (d) vinegar
  16. 16.🫧 Which of these is an acid? (a) soap solution (b) curd (c) baking soda water (d) detergent water
  17. 17.🌊 How is salt made in salt pans by the sea? (a) sea water evaporates (b) salt rains down (c) fish make it (d) sand is ground up
  18. 18.True or false: bad grains from rice is done by evaporating. (a) False (b) True
  19. 19.⚖️ Fair test — does more baking soda blow the balloon up bigger? Which of these is what we measure? (a) size of the balloon (b) spoons of baking soda (c) the same bottle (d) the kind of balloon
  20. 20.🧺 Which of these is needed for the leafy bag test? (a) a mirror (b) a potted plant (c) vinegar (d) a magnet
  21. 21.🧺 Three of these are needed for the turmeric test. Which one is NOT needed? (a) a comb (b) a dropper or spoon (c) lemon juice (d) soap solution
  22. 22.🧈 Which of these is a change that can be undone? (a) cooking an egg (b) rusting iron (c) melting ice (d) baking a cake
  23. 23.🧺 Do we need a balloon for the secret lemon message? (a) needed (b) not needed
  24. 24.🟡 Which of these keeps turmeric yellow? (a) soap solution (b) detergent water (c) salt water (d) baking soda water
  25. 25.🧺 Do we need a balloon for the yeast balloon? (a) not needed (b) needed
  26. 26.True or false: sugar is not needed for a seed to sprout. (a) False (b) True
  27. 27.True or false: sugar does not dissolve in water. (a) False (b) True
  28. 28.True or false: a balloon is needed for making butter. (a) True (b) False
  29. 29.🧺 Do we need turmeric powder for the turmeric test? (a) not needed (b) needed
  30. 30.🧺 Which of these is not needed for sprouting seeds? (a) a small bowl (b) a few days (c) water (d) a magnet
  31. 31.🧺 Which of these is needed for growing salt crystals? (a) a battery cell (b) a spoon (c) yeast (d) turmeric powder
  32. 32.True or false: a cotton bud is needed for the secret lemon message. (a) True (b) False
  33. 33.⚖️ Fair test — which liquids turn turmeric paper reddish-brown? What do we do with “the light we look in”? (a) we measure it (b) we change it (c) we keep it the same
  34. 34.True or false: a comb is not needed for the fizzy balloon. (a) True (b) False
  35. 35.🧺 Which of these is needed for the fizzy balloon? (a) a magnet (b) a seed (c) a funnel or spoon (d) a battery cell
  36. 36.🔍 Which is the odd one out? (a) chalk powder (b) sawdust (c) sand (d) glucose powder
  37. 37.True or false: salt is needed for growing salt crystals. (a) False (b) True
  38. 38.🧺 Do we need sand and pebbles for the muddy water filter? (a) needed (b) not needed
  39. 39.🟡 Which of these keeps turmeric yellow? (a) baking soda water (b) lemon juice (c) soap solution (d) detergent water
  40. 40.True or false: sawdust dissolves in water. (a) True (b) False

Answer key

  1. True
  2. we keep it the same
  3. True
  4. a magnet
  5. needed
  6. a shallow dish
  7. needed
  8. True
  9. we measure it
  10. True
  11. False
  12. not needed
  13. True
  14. clearer
  15. vinegar
  16. curd
  17. sea water evaporates
  18. False
  19. size of the balloon
  20. a potted plant
  21. a comb
  22. melting ice
  23. not needed
  24. salt water
  25. needed
  26. True
  27. False
  28. False
  29. needed
  30. a magnet
  31. a spoon
  32. True
  33. we keep it the same
  34. True
  35. a funnel or spoon
  36. glucose powder
  37. True
  38. needed
  39. lemon juice
  40. False

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