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Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 655 · 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.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to hide the corks (c) to keep children safe (d) to splash everyone
  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 kind of clay (b) the amount of clay (c) the shape of the clay (d) the tub of water
  3. 3.True or false: a ping-pong ball sinks in water. (a) True (b) False
  4. 4.🛟 Which of these sinks in water? (a) a piece of thermocol (b) an ice cube (c) a glass marble (d) an empty capped bottle
  5. 5.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a towel for spills (c) a tub of water (d) a mirror
  6. 6.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) small test objects (c) a tub of water (d) a magnet
  7. 7.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
  8. 8.🔍 Which is the odd one out? (a) a dry leaf (b) a piece of thermocol (c) a ping-pong ball (d) a coin
  9. 9.True or false: an ice-cream stick sinks in water. (a) True (b) False
  10. 10.⚖️ 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) False (b) True
  11. 11.True or false: an ice cube sinks in water. (a) True (b) False
  12. 12.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats
  13. 13.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it sinks (c) it turns blue (d) it melts
  14. 14.🔍 Which is the odd one out? (a) an ice cube (b) a pebble (c) a cork (d) an empty capped bottle
  15. 15.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) yeast (c) a towel for spills (d) a results table
  16. 16.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
  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 keep it the same (b) we measure it (c) we change it
  18. 18.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
  19. 19.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
  20. 20.🛟 Does an iron nail float or sink in water? (a) floats (b) sinks
  21. 21.True or false: small test objects is needed for the float-or-sink test. (a) False (b) True
  22. 22.True or false: a pebble floats on water. (a) True (b) False
  23. 23.🛟 Which of these floats on water? (a) a ball of clay (b) an iron nail (c) an ice-cream stick (d) a steel spoon
  24. 24.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) it has a magnet (c) sea water is warm (d) its hollow shape
  25. 25.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the shape of the clay (b) the tub of water (c) whether it floats
  26. 26.⚖️ 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
  27. 27.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is kept the same. (a) True (b) False
  28. 28.🛟 Which of these floats on water? (a) a ball of clay (b) a pebble (c) a ping-pong ball (d) a steel spoon
  29. 29.🛟 Does a cork float or sink in water? (a) floats (b) sinks
  30. 30.True or false: a feather floats on water. (a) False (b) True
  31. 31.True or false: a balloon is needed for the float-or-sink test. (a) True (b) False
  32. 32.🛟 Does a metal key float or sink in water? (a) floats (b) sinks
  33. 33.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it turns to stone (c) it dissolves (d) it can float
  34. 34.True or false: a tub of water is not needed for the float-or-sink test. (a) False (b) True
  35. 35.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) ice is less dense (c) water is sticky (d) ice is very cold
  36. 36.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) leave water on the floor (c) wipe up spills at once (d) play near a deep pond
  37. 37.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
  38. 38.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
  39. 39.🔍 Which is the odd one out? (a) an empty capped bottle (b) a metal key (c) a piece of thermocol (d) a dry leaf
  40. 40.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we keep it the same (b) we change it (c) we measure it

Answer key

  1. to keep children safe
  2. the shape of the clay
  3. False
  4. a glass marble
  5. a mirror
  6. a magnet
  7. not needed
  8. a coin
  9. False
  10. True
  11. False
  12. floats
  13. it sinks
  14. a pebble
  15. yeast
  16. needed
  17. we change it
  18. not needed
  19. needed
  20. sinks
  21. True
  22. False
  23. an ice-cream stick
  24. its hollow shape
  25. the tub of water
  26. True
  27. True
  28. a ping-pong ball
  29. floats
  30. True
  31. False
  32. sinks
  33. it can float
  34. False
  35. ice is less dense
  36. wipe up spills at once
  37. not needed
  38. not needed
  39. a metal key
  40. we measure it

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