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Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 729 · 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.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
  2. 2.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) a few ice cubes (c) lots of salt stirred in (d) a little shaking
  3. 3.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
  4. 4.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
  5. 5.True or false: a tub of water is needed for the float-or-sink test. (a) True (b) False
  6. 6.True or false: a coin floats on water. (a) False (b) True
  7. 7.True or false: a glass marble floats on water. (a) False (b) True
  8. 8.🛟 Does a coin float or sink in water? (a) floats (b) sinks
  9. 9.🛟 Which of these sinks in water? (a) an ice-cream stick (b) an ice cube (c) a coin (d) a piece of thermocol
  10. 10.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a magnet (c) a results table (d) small test objects
  11. 11.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to splash everyone (c) to hide the corks (d) to keep children safe
  12. 12.⚖️ 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
  13. 13.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
  14. 14.🔍 Which is the odd one out? (a) a ping-pong ball (b) an empty capped bottle (c) a feather (d) a glass marble
  15. 15.🛟 Which of these floats on water? (a) an ice-cream stick (b) a steel spoon (c) a coin (d) an iron nail
  16. 16.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the tub of water”? (a) we keep it the same (b) we change it (c) we measure it
  17. 17.⚖️ 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 measure it (c) we keep it the same
  18. 18.🔍 Which is the odd one out? (a) a dry leaf (b) a ping-pong ball (c) a piece of thermocol (d) an iron nail
  19. 19.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
  20. 20.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we measure it (b) we keep it the same (c) we change it
  21. 21.True or false: a metal key floats on water. (a) False (b) True
  22. 22.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) steel is very light (c) its hollow shape (d) sea water is warm
  23. 23.True or false: an iron nail floats on water. (a) False (b) True
  24. 24.🔍 Which is the odd one out? (a) an iron nail (b) a metal key (c) a piece of thermocol (d) a steel spoon
  25. 25.⚖️ 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
  26. 26.⚖️ 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) False (b) True
  27. 27.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a balloon (b) small test objects (c) a towel for spills (d) a tub of water
  28. 28.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) small test objects (c) a results table (d) a magnet
  29. 29.🛟 Which of these floats on water? (a) a glass marble (b) a feather (c) a metal key (d) a pebble
  30. 30.⚖️ 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 change it (b) we keep it the same (c) we measure it
  31. 31.🛟 Does an iron nail float or sink in water? (a) sinks (b) floats
  32. 32.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
  33. 33.🔍 You drop a coin into a tub of water. What do you see? (a) it dissolves (b) it floats (c) it bounces up (d) it sinks
  34. 34.⚖️ 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) True (b) False
  35. 35.🔍 Which is the odd one out? (a) a feather (b) a ping-pong ball (c) a coin (d) a dry leaf
  36. 36.True or false: a mirror is not needed for the float-or-sink test. (a) True (b) False
  37. 37.🔍 Which is the odd one out? (a) a cork (b) an empty capped bottle (c) a metal key (d) a piece of thermocol
  38. 38.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is what we measure. (a) False (b) True
  39. 39.True or false: a piece of thermocol sinks in water. (a) False (b) True
  40. 40.True or false: turmeric powder is not needed for the float-or-sink test. (a) False (b) True

Answer key

  1. floats
  2. lots of salt stirred in
  3. not needed
  4. needed
  5. True
  6. False
  7. False
  8. sinks
  9. a coin
  10. a magnet
  11. to keep children safe
  12. False
  13. not needed
  14. a glass marble
  15. an ice-cream stick
  16. we keep it the same
  17. we change it
  18. an iron nail
  19. needed
  20. we measure it
  21. False
  22. its hollow shape
  23. False
  24. a piece of thermocol
  25. True
  26. False
  27. a balloon
  28. a magnet
  29. a feather
  30. we keep it the same
  31. sinks
  32. not needed
  33. it sinks
  34. False
  35. a coin
  36. True
  37. a metal key
  38. False
  39. False
  40. True

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