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Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 932 · 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 is the odd one out? (a) an ice-cream stick (b) a dry leaf (c) a feather (d) a pebble
  2. 2.⚖️ 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 shape of the clay (c) the kind of clay (d) the tub of water
  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.True or false: an ice-cream stick floats on water. (a) True (b) False
  5. 5.🛟 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
  6. 6.True or false: a feather sinks in water. (a) True (b) False
  7. 7.True or false: a mirror is needed for the float-or-sink test. (a) False (b) True
  8. 8.⚖️ 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
  9. 9.🧺 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 results table (d) a balloon
  10. 10.True or false: an iron nail sinks in water. (a) True (b) False
  11. 11.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is what we measure. (a) True (b) False
  12. 12.True or false: a glass marble floats on water. (a) False (b) True
  13. 13.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is kept the same. (a) False (b) True
  14. 14.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
  15. 15.True or false: a tub of water is not needed for the float-or-sink test. (a) False (b) True
  16. 16.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it can float (c) it dissolves (d) it turns to stone
  17. 17.True or false: a magnet is needed for the float-or-sink test. (a) True (b) False
  18. 18.🛟 Which of these floats on water? (a) a metal key (b) a ball of clay (c) a cork (d) a coin
  19. 19.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) it has a magnet (c) steel is very light (d) its hollow shape
  20. 20.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a magnet (c) a battery cell (d) a results table
  21. 21.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
  22. 22.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
  23. 23.🛟 Does a cork float or sink in water? (a) sinks (b) floats
  24. 24.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) the small pebble (c) neither of them (d) the big log
  25. 25.🛟 Does a piece of thermocol float or sink in water? (a) sinks (b) floats
  26. 26.🛟 Which of these floats on water? (a) an ice cube (b) a coin (c) an iron nail (d) a pebble
  27. 27.True or false: a piece of thermocol floats on water. (a) False (b) True
  28. 28.🧺 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) small test objects (d) yeast
  29. 29.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) water is sticky (c) ice is less dense (d) ice is very cold
  30. 30.🛟 Does a ball of clay float or sink in water? (a) floats (b) sinks
  31. 31.🛟 Which of these sinks in water? (a) a cork (b) an ice-cream stick (c) an ice cube (d) a metal key
  32. 32.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a magnet (c) a results table (d) a towel for spills
  33. 33.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
  34. 34.True or false: a balloon is needed for the float-or-sink test. (a) True (b) False
  35. 35.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a results table (c) a mirror (d) a towel for spills
  36. 36.🌊 What pushes a floating cork upward? (a) the air above (b) the water (c) the cork itself (d) the tub
  37. 37.⚖️ 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 measure it (b) we keep it the same (c) we change it
  38. 38.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
  39. 39.True or false: small test objects is not needed for the float-or-sink test. (a) False (b) True
  40. 40.True or false: a ping-pong ball floats on water. (a) True (b) False

Answer key

  1. a pebble
  2. the shape of the clay
  3. we keep it the same
  4. True
  5. wipe up spills at once
  6. False
  7. False
  8. False
  9. a balloon
  10. True
  11. True
  12. False
  13. False
  14. needed
  15. False
  16. it can float
  17. False
  18. a cork
  19. its hollow shape
  20. a results table
  21. not needed
  22. not needed
  23. floats
  24. the big log
  25. floats
  26. an ice cube
  27. True
  28. yeast
  29. ice is less dense
  30. sinks
  31. a metal key
  32. a magnet
  33. floats
  34. False
  35. a mirror
  36. the water
  37. we keep it the same
  38. needed
  39. False
  40. True

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