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Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 722 · 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.True or false: a glass marble floats on water. (a) False (b) True
  2. 2.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
  3. 3.🛟 Which of these sinks in water? (a) a piece of thermocol (b) a ping-pong ball (c) an ice-cream stick (d) a glass marble
  4. 4.🛟 Does a feather float or sink in water? (a) floats (b) sinks
  5. 5.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is kept the same. (a) True (b) False
  6. 6.⚖️ 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 keep it the same (b) we change it (c) we measure it
  7. 7.True or false: a mirror is not needed for the float-or-sink test. (a) True (b) False
  8. 8.🛟 Does a cork float or sink in water? (a) floats (b) sinks
  9. 9.True or false: yeast is needed for the float-or-sink test. (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) whether it floats (c) the kind of clay (d) the shape of the clay
  11. 11.🧊 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
  12. 12.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) run around the tub (c) wipe up spills at once (d) play near a deep pond
  13. 13.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a balloon (c) small test objects (d) a results table
  14. 14.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a tub of water (c) yeast (d) a magnet
  15. 15.🛟 Does a piece of thermocol float or sink in water? (a) sinks (b) floats
  16. 16.⚖️ 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
  17. 17.True or false: a metal key sinks in water. (a) False (b) True
  18. 18.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is what we measure. (a) True (b) False
  19. 19.🛟 Which of these floats on water? (a) a feather (b) a coin (c) a metal key (d) a glass marble
  20. 20.True or false: a steel spoon floats on water. (a) False (b) True
  21. 21.🛟 Does a pebble float or sink in water? (a) sinks (b) floats
  22. 22.🛟 Does a glass marble float or sink in water? (a) floats (b) sinks
  23. 23.True or false: a results table is not needed for the float-or-sink test. (a) True (b) False
  24. 24.🛟 Which of these sinks in water? (a) a steel spoon (b) an ice-cream stick (c) a cork (d) a feather
  25. 25.True or false: a piece of thermocol floats on water. (a) False (b) True
  26. 26.True or false: a glass marble sinks in water. (a) False (b) True
  27. 27.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it floats higher (c) it turns blue (d) it sinks
  28. 28.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it turns white (c) it still floats (d) it dissolves
  29. 29.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the big log (b) both of them (c) the small pebble (d) neither of them
  30. 30.True or false: a piece of thermocol sinks in water. (a) True (b) False
  31. 31.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) small test objects (c) a towel for spills (d) a battery cell
  32. 32.True or false: a magnet is not needed for the float-or-sink test. (a) False (b) True
  33. 33.True or false: a battery cell is not needed for the float-or-sink test. (a) False (b) True
  34. 34.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats
  35. 35.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a battery cell (c) turmeric powder (d) small test objects
  36. 36.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a towel for spills (c) small test objects (d) a magnet
  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 change it (c) we keep it the same
  38. 38.🛟 Which of these floats on water? (a) a pebble (b) a ball of clay (c) a coin (d) an empty capped bottle
  39. 39.True or false: yeast is not needed for the float-or-sink test. (a) False (b) True
  40. 40.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed

Answer key

  1. False
  2. floats
  3. a glass marble
  4. floats
  5. True
  6. we keep it the same
  7. True
  8. floats
  9. False
  10. whether it floats
  11. ice is less dense
  12. wipe up spills at once
  13. a balloon
  14. a tub of water
  15. floats
  16. False
  17. True
  18. False
  19. a feather
  20. False
  21. sinks
  22. sinks
  23. False
  24. a steel spoon
  25. True
  26. True
  27. it sinks
  28. it still floats
  29. the big log
  30. False
  31. a battery cell
  32. True
  33. True
  34. floats
  35. small test objects
  36. a magnet
  37. we keep it the same
  38. an empty capped bottle
  39. True
  40. needed

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