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Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 327 · 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 of these is needed for the float-or-sink test? (a) a tub of water (b) a mirror (c) yeast (d) turmeric powder
  2. 2.True or false: a dry leaf sinks in water. (a) True (b) False
  3. 3.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
  4. 4.🧺 Which of these is not needed for the float-or-sink test? (a) a magnet (b) small test objects (c) a towel for spills (d) a results table
  5. 5.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to hide the corks (c) to win a prize (d) to splash everyone
  6. 6.🧊 Why does an ice cube float on water? (a) ice is very cold (b) ice is magnetic (c) water is sticky (d) ice is less dense
  7. 7.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a balloon (c) a results table (d) a towel for spills
  8. 8.True or false: a pebble sinks in water. (a) False (b) True
  9. 9.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is kept the same. (a) True (b) False
  10. 10.⚖️ 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 kind of clay (c) whether it floats (d) the amount of clay
  11. 11.True or false: a steel spoon floats on water. (a) False (b) True
  12. 12.🚢 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
  13. 13.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
  14. 14.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a ping-pong ball (c) a feather (d) a pebble
  15. 15.🔮 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
  16. 16.⚖️ 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 keep it the same (c) we change 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 keep it the same (b) we measure it (c) we change it
  18. 18.True or false: turmeric powder is needed for the float-or-sink test. (a) True (b) False
  19. 19.True or false: a cork floats on water. (a) True (b) False
  20. 20.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) wipe up spills at once (c) run around the tub (d) leave water on the floor
  21. 21.🛟 Which of these sinks in water? (a) a feather (b) a ping-pong ball (c) an iron nail (d) a dry leaf
  22. 22.⚖️ 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 measure it (c) we change it
  23. 23.True or false: a battery cell is not needed for the float-or-sink test. (a) True (b) False
  24. 24.True or false: a steel spoon sinks in water. (a) True (b) False
  25. 25.True or false: a glass marble floats on water. (a) True (b) False
  26. 26.True or false: a ball of clay floats on water. (a) True (b) False
  27. 27.🛟 Which of these sinks in water? (a) a feather (b) a glass marble (c) a piece of thermocol (d) a dry leaf
  28. 28.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a battery cell (c) a results table (d) small test objects
  29. 29.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) yeast (c) a battery cell (d) a results table
  30. 30.🧺 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 results table (d) a mirror
  31. 31.🛟 Does an iron nail float or sink in water? (a) sinks (b) floats
  32. 32.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it turns blue (c) it floats higher (d) it sinks
  33. 33.🛟 Does a piece of thermocol float or sink in water? (a) sinks (b) floats
  34. 34.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a magnet (b) small test objects (c) a tub of water (d) a results table
  35. 35.True or false: a tub of water is needed for the float-or-sink test. (a) True (b) False
  36. 36.True or false: a coin sinks in water. (a) True (b) False
  37. 37.🧺 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 balloon (d) a tub of water
  38. 38.🔍 Which is the odd one out? (a) a piece of thermocol (b) a ball of clay (c) a steel spoon (d) a glass marble
  39. 39.True or false: a glass marble sinks in water. (a) False (b) True
  40. 40.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed

Answer key

  1. a tub of water
  2. False
  3. needed
  4. a magnet
  5. to keep children safe
  6. ice is less dense
  7. a balloon
  8. True
  9. True
  10. whether it floats
  11. False
  12. its hollow shape
  13. not needed
  14. a pebble
  15. it can float
  16. we keep it the same
  17. we change it
  18. False
  19. True
  20. wipe up spills at once
  21. an iron nail
  22. we measure it
  23. True
  24. True
  25. False
  26. False
  27. a glass marble
  28. a battery cell
  29. a results table
  30. a mirror
  31. sinks
  32. it sinks
  33. floats
  34. a magnet
  35. True
  36. True
  37. a balloon
  38. a piece of thermocol
  39. True
  40. needed

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