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Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 231 · 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.🛟 Which of these sinks in water? (a) a ping-pong ball (b) an ice-cream stick (c) a cork (d) a glass marble
  2. 2.🧺 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 magnet
  3. 3.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
  4. 4.🧊 Why does an ice cube float on water? (a) ice is very cold (b) water is sticky (c) ice is less dense (d) ice is magnetic
  5. 5.True or false: a pebble sinks in water. (a) False (b) True
  6. 6.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a magnet (c) small test objects (d) a balloon
  7. 7.True or false: a battery cell is not needed for the float-or-sink test. (a) True (b) False
  8. 8.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
  9. 9.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
  10. 10.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it bounces up (c) it floats (d) it dissolves
  11. 11.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the kind of clay (b) whether it floats (c) the shape of the clay
  12. 12.🛟 Does a ball of clay float or sink in water? (a) floats (b) sinks
  13. 13.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
  14. 14.🛟 Which of these sinks in water? (a) a dry leaf (b) an iron nail (c) a piece of thermocol (d) a feather
  15. 15.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the shape of the clay (b) whether it floats (c) the amount of clay (d) the tub of water
  16. 16.True or false: an empty capped bottle floats on water. (a) True (b) False
  17. 17.🛟 Does a glass marble float or sink in water? (a) sinks (b) floats
  18. 18.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the amount of clay”? (a) we measure it (b) we change it (c) we keep it the same
  19. 19.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) leave water on the floor (c) run around the tub (d) play near a deep pond
  20. 20.🔍 Which is the odd one out? (a) a pebble (b) a metal key (c) an iron nail (d) a cork
  21. 21.True or false: a magnet is not needed for the float-or-sink test. (a) False (b) True
  22. 22.⚖️ 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
  23. 23.True or false: an iron nail floats on water. (a) True (b) False
  24. 24.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
  25. 25.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
  26. 26.🧺 Which of these is not needed for the float-or-sink test? (a) a mirror (b) a results table (c) small test objects (d) a tub of water
  27. 27.🔍 Which is the odd one out? (a) a steel spoon (b) a ping-pong ball (c) an ice cube (d) an ice-cream stick
  28. 28.⚖️ 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 kind of clay (c) the shape of the clay (d) whether it floats
  29. 29.True or false: small test objects is needed for the float-or-sink test. (a) False (b) True
  30. 30.True or false: a tub of water is not needed for the float-or-sink test. (a) False (b) True
  31. 31.True or false: a results table is needed for the float-or-sink test. (a) True (b) False
  32. 32.🛟 Which of these sinks in water? (a) a coin (b) an ice-cream stick (c) a ping-pong ball (d) an ice cube
  33. 33.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to hide the corks (c) to win a prize (d) to keep children safe
  34. 34.🔍 Which is the odd one out? (a) a pebble (b) an iron nail (c) a feather (d) a steel spoon
  35. 35.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it dissolves (c) it can float (d) it sinks faster
  36. 36.🛟 Does an ice-cream stick float or sink in water? (a) floats (b) sinks
  37. 37.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a tub of water (c) small test objects (d) yeast
  38. 38.🔍 Which is the odd one out? (a) an ice-cream stick (b) a feather (c) a ping-pong ball (d) an iron nail
  39. 39.True or false: a cork floats on water. (a) False (b) True
  40. 40.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a tub of water (c) turmeric powder (d) small test objects

Answer key

  1. a glass marble
  2. a magnet
  3. sinks
  4. ice is less dense
  5. True
  6. small test objects
  7. True
  8. not needed
  9. True
  10. it sinks
  11. the kind of clay
  12. sinks
  13. not needed
  14. an iron nail
  15. whether it floats
  16. True
  17. sinks
  18. we keep it the same
  19. wipe up spills at once
  20. a cork
  21. True
  22. we measure it
  23. False
  24. not needed
  25. needed
  26. a mirror
  27. a steel spoon
  28. the shape of the clay
  29. True
  30. False
  31. True
  32. a coin
  33. to keep children safe
  34. a feather
  35. it can float
  36. floats
  37. yeast
  38. an iron nail
  39. True
  40. turmeric powder

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