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Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 614 · 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 tub of water is needed for the float-or-sink test. (a) False (b) True
  2. 2.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is magnetic (c) ice is less dense (d) ice is very cold
  3. 3.⚖️ 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 measure it (b) we change it (c) we keep it the same
  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 tub of water
  5. 5.True or false: a battery cell is not needed for the float-or-sink test. (a) False (b) True
  6. 6.🛟 Which of these floats on water? (a) a pebble (b) an empty capped bottle (c) a metal key (d) a glass marble
  7. 7.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) turmeric powder (b) a results table (c) a tub of water (d) small test objects
  8. 8.True or false: a results table is needed for the float-or-sink test. (a) False (b) True
  9. 9.True or false: small test objects is not needed for the float-or-sink test. (a) False (b) True
  10. 10.🛟 Does a pebble float or sink in water? (a) floats (b) sinks
  11. 11.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
  12. 12.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the kind of clay (b) the tub of water (c) the shape of the clay (d) whether it floats
  13. 13.🛟 Which of these floats on water? (a) a pebble (b) an ice-cream stick (c) a coin (d) a steel spoon
  14. 14.True or false: an empty capped bottle sinks in water. (a) False (b) True
  15. 15.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is the one thing we change. (a) True (b) False
  16. 16.True or false: a piece of thermocol sinks in water. (a) False (b) True
  17. 17.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) small test objects (c) yeast (d) turmeric powder
  18. 18.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) yeast (c) turmeric powder (d) a towel for spills
  19. 19.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it sinks faster (c) it can float (d) it dissolves
  20. 20.🔮 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
  21. 21.True or false: yeast is needed for the float-or-sink test. (a) True (b) False
  22. 22.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it sinks (c) it still floats (d) it turns white
  23. 23.True or false: a results table is not needed for the float-or-sink test. (a) True (b) False
  24. 24.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a tub of water (c) a mirror (d) a towel for spills
  25. 25.True or false: a feather floats on water. (a) True (b) False
  26. 26.True or false: a dry leaf sinks in water. (a) False (b) True
  27. 27.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a magnet (c) small test objects (d) a tub of water
  28. 28.🛟 Does a cork float or sink in water? (a) sinks (b) floats
  29. 29.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a tub of water (c) a battery cell (d) a towel for spills
  30. 30.🛟 Does a glass marble float or sink in water? (a) sinks (b) floats
  31. 31.🧺 Which of these is not needed for the float-or-sink test? (a) a mirror (b) a towel for spills (c) small test objects (d) a results table
  32. 32.⚖️ 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) whether it floats (c) the kind of clay
  33. 33.True or false: a dry leaf floats on water. (a) False (b) True
  34. 34.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
  35. 35.True or false: a balloon is not needed for the float-or-sink test. (a) False (b) True
  36. 36.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
  37. 37.⚖️ 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 amount of clay (c) whether it floats
  38. 38.True or false: a magnet is needed for the float-or-sink test. (a) False (b) True
  39. 39.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
  40. 40.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to win a prize (c) to hide the corks (d) to keep children safe

Answer key

  1. True
  2. ice is less dense
  3. we change it
  4. a magnet
  5. True
  6. an empty capped bottle
  7. turmeric powder
  8. True
  9. False
  10. sinks
  11. floats
  12. whether it floats
  13. an ice-cream stick
  14. False
  15. False
  16. False
  17. small test objects
  18. a towel for spills
  19. it can float
  20. it sinks
  21. False
  22. it still floats
  23. False
  24. a mirror
  25. True
  26. False
  27. a magnet
  28. floats
  29. a battery cell
  30. sinks
  31. a mirror
  32. the kind of clay
  33. True
  34. not needed
  35. True
  36. needed
  37. the amount of clay
  38. False
  39. needed
  40. to keep children safe

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