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Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 22 · 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.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
  2. 2.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a results table (c) a battery cell (d) small test objects
  3. 3.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the kind of clay”? (a) we change it (b) we keep it the same (c) we measure it
  4. 4.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) neither of them (c) the small pebble (d) the big log
  5. 5.🛟 Which of these floats on water? (a) a ping-pong ball (b) a coin (c) an iron nail (d) a metal key
  6. 6.True or false: a cork floats on water. (a) False (b) True
  7. 7.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the shape of the clay”? (a) we change it (b) we keep it the same (c) we measure it
  8. 8.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a feather (c) a coin (d) a ping-pong ball
  9. 9.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
  10. 10.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) run around the tub (c) wipe up spills at once (d) play near a deep pond
  11. 11.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a magnet (c) a balloon (d) a results table
  12. 12.True or false: a metal key floats on water. (a) True (b) False
  13. 13.🌊 What pushes a floating cork upward? (a) the air above (b) the water (c) the tub (d) the cork itself
  14. 14.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is kept the same. (a) False (b) True
  15. 15.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True
  16. 16.⚖️ 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 amount of clay (b) the kind of clay (c) the shape of the clay (d) whether it floats
  17. 17.🔍 Which is the odd one out? (a) a metal key (b) a glass marble (c) a pebble (d) an empty capped bottle
  18. 18.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the shape of the clay (b) the kind of clay (c) whether it floats
  19. 19.🧺 Which of these is needed for the float-or-sink test? (a) a towel for spills (b) yeast (c) a battery cell (d) a magnet
  20. 20.True or false: a pebble sinks in water. (a) True (b) False
  21. 21.🛟 Does a glass marble float or sink in water? (a) floats (b) sinks
  22. 22.🔍 Which is the odd one out? (a) a pebble (b) a piece of thermocol (c) a glass marble (d) a metal key
  23. 23.True or false: an iron nail sinks in water. (a) False (b) True
  24. 24.🧺 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) small test objects (d) a balloon
  25. 25.True or false: a piece of thermocol sinks in water. (a) True (b) False
  26. 26.🔍 Which is the odd one out? (a) a cork (b) a dry leaf (c) an empty capped bottle (d) a glass marble
  27. 27.🛟 Which of these floats on water? (a) an iron nail (b) a piece of thermocol (c) a coin (d) a glass marble
  28. 28.🛟 Which of these floats on water? (a) a metal key (b) a cork (c) an iron nail (d) a steel spoon
  29. 29.True or false: yeast is needed for the float-or-sink test. (a) True (b) False
  30. 30.🔍 Which is the odd one out? (a) an empty capped bottle (b) a ball of clay (c) a piece of thermocol (d) an ice cube
  31. 31.🔍 Which is the odd one out? (a) an ice-cream stick (b) a cork (c) a metal key (d) an empty capped bottle
  32. 32.🛟 Which of these sinks in water? (a) an iron nail (b) a cork (c) an ice-cream stick (d) a ping-pong ball
  33. 33.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
  34. 34.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is the one thing we change. (a) False (b) True
  35. 35.True or false: a ping-pong ball floats on water. (a) True (b) False
  36. 36.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the shape of the clay (b) the tub of water (c) whether it floats
  37. 37.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it turns white (c) it dissolves (d) it still floats
  38. 38.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it turns to stone (c) it can float (d) it dissolves
  39. 39.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
  40. 40.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats

Answer key

  1. needed
  2. a battery cell
  3. we keep it the same
  4. the big log
  5. a ping-pong ball
  6. True
  7. we change it
  8. a coin
  9. not needed
  10. wipe up spills at once
  11. a results table
  12. False
  13. the water
  14. True
  15. False
  16. the shape of the clay
  17. an empty capped bottle
  18. the kind of clay
  19. a towel for spills
  20. True
  21. sinks
  22. a piece of thermocol
  23. True
  24. a balloon
  25. False
  26. a glass marble
  27. a piece of thermocol
  28. a cork
  29. False
  30. a ball of clay
  31. a metal key
  32. an iron nail
  33. True
  34. False
  35. True
  36. the tub of water
  37. it still floats
  38. it can float
  39. not needed
  40. floats

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