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Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 45 · 40 questions
TalentJR

What you do (Float or sink?): 1. Fill a tub with water on a towel, with an adult nearby. 2. Guess “float” or “sink” for each object and write it in a table. 3. Gently place each object on the water and write what happens. 4. Press the sinking clay into a boat shape and try again; wipe up spills.

NameDateTime takenScore ___ / 40
  1. 1.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to splash everyone (c) to keep children safe (d) to win a prize
  2. 2.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) leave water on the floor (c) play near a deep pond (d) wipe up spills at once
  3. 3.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we change it (b) we keep it the same (c) we measure it
  4. 4.🛟 Which of these floats on water? (a) a metal key (b) a dry leaf (c) a glass marble (d) an iron nail
  5. 5.🛟 Does a glass marble float or sink in water? (a) sinks (b) floats
  6. 6.🛟 Which of these sinks in water? (a) a cork (b) a ball of clay (c) a feather (d) an ice-cream stick
  7. 7.True or false: turmeric powder is needed for the float-or-sink test. (a) True (b) False
  8. 8.🛟 Which of these sinks in water? (a) a cork (b) an ice cube (c) an ice-cream stick (d) a steel spoon
  9. 9.🌊 What pushes a floating cork upward? (a) the water (b) the air above (c) the cork itself (d) the tub
  10. 10.🛟 Which of these sinks in water? (a) a cork (b) an empty capped bottle (c) a dry leaf (d) a coin
  11. 11.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a tub of water (c) small test objects (d) a balloon
  12. 12.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is the one thing we change? (a) the tub of water (b) the amount of clay (c) the shape of the clay (d) whether it floats
  13. 13.True or false: an ice-cream stick floats on water. (a) False (b) True
  14. 14.🛟 Which of these floats on water? (a) an iron nail (b) an ice-cream stick (c) a coin (d) a glass marble
  15. 15.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a towel for spills (c) a tub of water (d) a balloon
  16. 16.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
  17. 17.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a towel for spills (c) a magnet (d) small test objects
  18. 18.True or false: a coin floats on water. (a) True (b) False
  19. 19.True or false: a feather sinks in water. (a) False (b) True
  20. 20.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is the one thing we change. (a) False (b) True
  21. 21.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) turmeric powder (c) a battery cell (d) a towel for spills
  22. 22.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
  23. 23.True or false: a battery cell is not needed for the float-or-sink test. (a) False (b) True
  24. 24.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
  25. 25.🔍 Which is the odd one out? (a) a steel spoon (b) a dry leaf (c) an ice-cream stick (d) an ice cube
  26. 26.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it dissolves (c) it sinks (d) it turns white
  27. 27.True or false: yeast is not needed for the float-or-sink test. (a) False (b) True
  28. 28.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is the one thing we change. (a) True (b) False
  29. 29.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) turmeric powder (c) a results table (d) a balloon
  30. 30.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) small test objects (c) a mirror (d) a battery cell
  31. 31.True or false: a battery cell is needed for the float-or-sink test. (a) True (b) False
  32. 32.🔍 Which is the odd one out? (a) a ping-pong ball (b) a cork (c) a coin (d) an empty capped bottle
  33. 33.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a results table (c) small test objects (d) a battery cell
  34. 34.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
  35. 35.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
  36. 36.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is kept the same. (a) True (b) False
  37. 37.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) its hollow shape (c) sea water is warm (d) steel is very light
  38. 38.True or false: small test objects is not needed for the float-or-sink test. (a) False (b) True
  39. 39.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a results table (c) a towel for spills (d) a mirror
  40. 40.True or false: a pebble floats on water. (a) False (b) True

Answer key

  1. to keep children safe
  2. wipe up spills at once
  3. we measure it
  4. a dry leaf
  5. sinks
  6. a ball of clay
  7. False
  8. a steel spoon
  9. the water
  10. a coin
  11. a balloon
  12. the shape of the clay
  13. True
  14. an ice-cream stick
  15. a balloon
  16. needed
  17. a magnet
  18. False
  19. False
  20. False
  21. a towel for spills
  22. not needed
  23. True
  24. True
  25. a steel spoon
  26. it still floats
  27. True
  28. False
  29. a results table
  30. small test objects
  31. False
  32. a coin
  33. a battery cell
  34. needed
  35. needed
  36. False
  37. its hollow shape
  38. False
  39. a mirror
  40. False

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