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Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 205 · 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) small test objects (c) a mirror (d) a towel for spills
  2. 2.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
  3. 3.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it dissolves (b) it can float (c) it sinks faster (d) it turns to stone
  4. 4.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to splash everyone (c) to keep children safe (d) to win a prize
  5. 5.True or false: a balloon is needed for the float-or-sink test. (a) False (b) True
  6. 6.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a tub of water (c) a battery cell (d) small test objects
  7. 7.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is very cold (c) ice is less dense (d) ice is magnetic
  8. 8.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a tub of water (c) small test objects (d) yeast
  9. 9.🔍 Which is the odd one out? (a) a metal key (b) a steel spoon (c) an ice-cream stick (d) a pebble
  10. 10.🔍 Which is the odd one out? (a) a feather (b) an ice cube (c) an empty capped bottle (d) a glass marble
  11. 11.⚖️ 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
  12. 12.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) small test objects (c) a balloon (d) a results table
  13. 13.🛟 Which of these sinks in water? (a) an empty capped bottle (b) a cork (c) a coin (d) a dry leaf
  14. 14.True or false: a towel for spills is needed for the float-or-sink test. (a) True (b) False
  15. 15.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it turns blue (c) it melts (d) it floats higher
  16. 16.🛟 Does a dry leaf float or sink in water? (a) floats (b) sinks
  17. 17.🛟 Does an empty capped bottle float or sink in water? (a) sinks (b) floats
  18. 18.True or false: a feather floats on water. (a) False (b) True
  19. 19.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) whether it floats (b) the kind of clay (c) the shape of the clay (d) the amount of clay
  20. 20.⚖️ 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
  21. 21.🛟 Does a steel spoon float or sink in water? (a) sinks (b) floats
  22. 22.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
  23. 23.🛟 Does an ice-cream stick float or sink in water? (a) floats (b) sinks
  24. 24.🔍 Which is the odd one out? (a) a metal key (b) a steel spoon (c) a ball of clay (d) a piece of thermocol
  25. 25.🛟 Which of these floats on water? (a) a steel spoon (b) a ping-pong ball (c) a coin (d) a metal key
  26. 26.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
  27. 27.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
  28. 28.🔍 Which is the odd one out? (a) a dry leaf (b) a ball of clay (c) a piece of thermocol (d) a cork
  29. 29.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
  30. 30.True or false: a cork sinks in water. (a) True (b) False
  31. 31.🛟 Does a feather float or sink in water? (a) sinks (b) floats
  32. 32.⚖️ 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 shape of the clay (b) the tub of water (c) whether it floats (d) the amount of clay
  33. 33.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a tub of water (c) a magnet (d) a towel for spills
  34. 34.🔍 Which is the odd one out? (a) an ice-cream stick (b) a ping-pong ball (c) a coin (d) a cork
  35. 35.True or false: a coin sinks in water. (a) False (b) True
  36. 36.🔍 Which is the odd one out? (a) a ball of clay (b) a steel spoon (c) a glass marble (d) an empty capped bottle
  37. 37.True or false: small test objects is needed for the float-or-sink test. (a) True (b) False
  38. 38.True or false: a ping-pong ball sinks in water. (a) False (b) True
  39. 39.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it turns white (c) it sinks (d) it dissolves
  40. 40.🔍 Which is the odd one out? (a) a ball of clay (b) a feather (c) a pebble (d) a coin

Answer key

  1. a mirror
  2. not needed
  3. it can float
  4. to keep children safe
  5. False
  6. a battery cell
  7. ice is less dense
  8. yeast
  9. an ice-cream stick
  10. a glass marble
  11. False
  12. a balloon
  13. a coin
  14. True
  15. it sinks
  16. floats
  17. floats
  18. True
  19. whether it floats
  20. we keep it the same
  21. sinks
  22. needed
  23. floats
  24. a piece of thermocol
  25. a ping-pong ball
  26. not needed
  27. False
  28. a ball of clay
  29. floats
  30. False
  31. floats
  32. the shape of the clay
  33. a magnet
  34. a coin
  35. True
  36. an empty capped bottle
  37. True
  38. False
  39. it still floats
  40. a feather

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