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Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 515 · 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.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) lots of salt stirred in (c) more plain water (d) a little shaking
  2. 2.True or false: an ice-cream stick floats on water. (a) False (b) True
  3. 3.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is the one thing we change. (a) False (b) True
  4. 4.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) turmeric powder (c) a tub of water (d) small test objects
  5. 5.🛟 Does a glass marble float or sink in water? (a) sinks (b) floats
  6. 6.True or false: an ice cube sinks in water. (a) False (b) True
  7. 7.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
  8. 8.⚖️ 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
  9. 9.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it dissolves (c) it can float (d) it turns to stone
  10. 10.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it dissolves (c) it sinks (d) it still floats
  11. 11.🛟 Does a feather float or sink in water? (a) sinks (b) floats
  12. 12.🔍 Which is the odd one out? (a) a ping-pong ball (b) a feather (c) an ice-cream stick (d) an iron nail
  13. 13.🛟 Does a steel spoon float or sink in water? (a) floats (b) sinks
  14. 14.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it floats (c) it bounces up (d) it dissolves
  15. 15.🔍 Which is the odd one out? (a) an iron nail (b) a ping-pong ball (c) a steel spoon (d) a coin
  16. 16.True or false: an iron nail sinks in water. (a) False (b) True
  17. 17.🔍 Which is the odd one out? (a) a glass marble (b) a steel spoon (c) a cork (d) a metal key
  18. 18.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) leave water on the floor (c) wipe up spills at once (d) run around the tub
  19. 19.True or false: a magnet is needed for the float-or-sink test. (a) False (b) True
  20. 20.True or false: a metal key floats on water. (a) False (b) True
  21. 21.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) steel is very light (c) sea water is warm (d) its hollow shape
  22. 22.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a ping-pong ball (c) a pebble (d) a piece of thermocol
  23. 23.True or false: a ball of clay sinks in water. (a) False (b) True
  24. 24.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
  25. 25.🛟 Which of these sinks in water? (a) a cork (b) a piece of thermocol (c) a steel spoon (d) a dry leaf
  26. 26.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
  27. 27.🧺 Which of these is not needed for the float-or-sink test? (a) a mirror (b) a tub of water (c) small test objects (d) a towel for spills
  28. 28.🛟 Does a ball of clay float or sink in water? (a) floats (b) sinks
  29. 29.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is the one thing we change. (a) False (b) True
  30. 30.True or false: small test objects is needed for the float-or-sink test. (a) False (b) True
  31. 31.⚖️ 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
  32. 32.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a tub of water (c) a towel for spills (d) turmeric powder
  33. 33.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is what we measure. (a) True (b) False
  34. 34.🛟 Which of these sinks in water? (a) a cork (b) an ice cube (c) a ping-pong ball (d) a ball of clay
  35. 35.🔍 Which is the odd one out? (a) an empty capped bottle (b) an ice cube (c) a dry leaf (d) a pebble
  36. 36.🔍 Which is the odd one out? (a) a coin (b) an ice-cream stick (c) an empty capped bottle (d) a ping-pong ball
  37. 37.🔍 Which is the odd one out? (a) a coin (b) a glass marble (c) an empty capped bottle (d) a steel spoon
  38. 38.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to keep children safe (c) to splash everyone (d) to hide the corks
  39. 39.⚖️ 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 keep it the same (b) we measure it (c) we change it
  40. 40.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a tub of water (c) a balloon (d) a results table

Answer key

  1. lots of salt stirred in
  2. True
  3. False
  4. turmeric powder
  5. sinks
  6. False
  7. floats
  8. we measure it
  9. it can float
  10. it still floats
  11. floats
  12. an iron nail
  13. sinks
  14. it sinks
  15. a ping-pong ball
  16. True
  17. a cork
  18. wipe up spills at once
  19. False
  20. False
  21. its hollow shape
  22. a pebble
  23. True
  24. not needed
  25. a steel spoon
  26. floats
  27. a mirror
  28. sinks
  29. True
  30. True
  31. we keep it the same
  32. turmeric powder
  33. False
  34. a ball of clay
  35. a pebble
  36. a coin
  37. an empty capped bottle
  38. to keep children safe
  39. we keep it the same
  40. a balloon

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