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Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 998 · 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.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a battery cell (c) small test objects (d) a towel for spills
  2. 2.True or false: a pebble floats on water. (a) False (b) True
  3. 3.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) sea water is warm (c) its hollow shape (d) it has a magnet
  4. 4.🔍 Which is the odd one out? (a) an ice-cream stick (b) a ball of clay (c) a metal key (d) a pebble
  5. 5.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a results table (c) a mirror (d) small test objects
  6. 6.🛟 Does a steel spoon float or sink in water? (a) sinks (b) floats
  7. 7.🛟 Does a coin float or sink in water? (a) floats (b) sinks
  8. 8.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) yeast (c) small test objects (d) a results table
  9. 9.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a magnet (c) small test objects (d) a tub of water
  10. 10.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
  11. 11.🛟 Which of these floats on water? (a) a dry leaf (b) a coin (c) a metal key (d) an iron nail
  12. 12.🛟 Which of these floats on water? (a) a ball of clay (b) an iron nail (c) a glass marble (d) a cork
  13. 13.🛟 Does a glass marble float or sink in water? (a) sinks (b) floats
  14. 14.⚖️ 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 measure it (b) we change it (c) we keep it the same
  15. 15.🛟 Which of these floats on water? (a) a pebble (b) a coin (c) a ball of clay (d) a feather
  16. 16.🛟 Which of these sinks in water? (a) an empty capped bottle (b) a coin (c) a piece of thermocol (d) a feather
  17. 17.True or false: small test objects is needed for the float-or-sink test. (a) False (b) True
  18. 18.🥚 A fresh egg sinks in plain water. What makes it float? (a) lots of salt stirred in (b) more plain water (c) a little shaking (d) a few ice cubes
  19. 19.True or false: a magnet is needed for the float-or-sink test. (a) False (b) True
  20. 20.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is what we measure. (a) True (b) False
  21. 21.⚖️ 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
  22. 22.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a tub of water (c) a magnet (d) yeast
  23. 23.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
  24. 24.🛟 Which of these floats on water? (a) an iron nail (b) a metal key (c) a glass marble (d) a piece of thermocol
  25. 25.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the tub of water (b) the amount of clay (c) whether it floats (d) the kind of clay
  26. 26.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) ice is very cold (c) ice is less dense (d) water is sticky
  27. 27.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
  28. 28.🧺 Which of these is needed for the float-or-sink test? (a) a towel for spills (b) a battery cell (c) yeast (d) turmeric powder
  29. 29.🛟 Which of these sinks in water? (a) a glass marble (b) an empty capped bottle (c) an ice cube (d) a piece of thermocol
  30. 30.🔍 You drop a coin into a tub of water. What do you see? (a) it dissolves (b) it sinks (c) it bounces up (d) it floats
  31. 31.🔍 Which is the odd one out? (a) a dry leaf (b) an ice cube (c) a metal key (d) a piece of thermocol
  32. 32.True or false: a piece of thermocol sinks in water. (a) True (b) False
  33. 33.🛟 Does an iron nail float or sink in water? (a) sinks (b) floats
  34. 34.⚖️ 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
  35. 35.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
  36. 36.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
  37. 37.🛟 Does a ball of clay float or sink in water? (a) sinks (b) floats
  38. 38.🛟 Does a cork float or sink in water? (a) floats (b) sinks
  39. 39.🔍 Which is the odd one out? (a) a glass marble (b) a dry leaf (c) a feather (d) a cork
  40. 40.True or false: a feather floats on water. (a) False (b) True

Answer key

  1. a battery cell
  2. False
  3. its hollow shape
  4. an ice-cream stick
  5. a mirror
  6. sinks
  7. sinks
  8. yeast
  9. a magnet
  10. not needed
  11. a dry leaf
  12. a cork
  13. sinks
  14. we change it
  15. a feather
  16. a coin
  17. True
  18. lots of salt stirred in
  19. False
  20. False
  21. False
  22. a tub of water
  23. floats
  24. a piece of thermocol
  25. whether it floats
  26. ice is less dense
  27. not needed
  28. a towel for spills
  29. a glass marble
  30. it sinks
  31. a metal key
  32. False
  33. sinks
  34. we keep it the same
  35. not needed
  36. needed
  37. sinks
  38. floats
  39. a glass marble
  40. True

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