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Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 214 · 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.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is the one thing we change. (a) True (b) False
  2. 2.🔍 Which is the odd one out? (a) an ice cube (b) a ping-pong ball (c) a dry leaf (d) a pebble
  3. 3.True or false: a balloon is needed for the float-or-sink test. (a) True (b) False
  4. 4.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) turmeric powder (c) a mirror (d) a results table
  5. 5.🧺 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
  6. 6.⚖️ 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
  7. 7.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats
  8. 8.🔍 Which is the odd one out? (a) an ice-cream stick (b) a ball of clay (c) a coin (d) a glass marble
  9. 9.True or false: a pebble floats on water. (a) True (b) False
  10. 10.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
  11. 11.🛟 Which of these floats on water? (a) a metal key (b) a cork (c) an iron nail (d) a glass marble
  12. 12.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
  13. 13.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
  14. 14.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
  15. 15.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the kind of clay (b) whether it floats (c) the shape of the clay
  16. 16.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it dissolves (c) it can float (d) it sinks faster
  17. 17.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it sinks (c) it turns blue (d) it floats higher
  18. 18.True or false: an iron nail floats on water. (a) True (b) False
  19. 19.True or false: a tub of water is needed for the float-or-sink test. (a) True (b) False
  20. 20.🔍 Which is the odd one out? (a) a metal key (b) a steel spoon (c) a cork (d) a pebble
  21. 21.🛟 Which of these floats on water? (a) a ball of clay (b) an iron nail (c) an ice-cream stick (d) a coin
  22. 22.🛟 Which of these sinks in water? (a) a pebble (b) an ice-cream stick (c) a cork (d) a feather
  23. 23.🛟 Does a metal key float or sink in water? (a) floats (b) sinks
  24. 24.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it bounces up (c) it floats (d) it dissolves
  25. 25.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
  26. 26.⚖️ 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
  27. 27.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we change it (b) we measure it (c) we keep it the same
  28. 28.🔍 Which is the odd one out? (a) an empty capped bottle (b) a glass marble (c) a pebble (d) a ball of clay
  29. 29.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) small test objects (c) a magnet (d) a tub of water
  30. 30.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
  31. 31.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) its hollow shape (c) sea water is warm (d) it has a magnet
  32. 32.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) yeast (b) a towel for spills (c) a results table (d) a tub of water
  33. 33.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) ice is very cold (c) ice is less dense (d) water is sticky
  34. 34.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the kind of clay”? (a) we change it (b) we measure it (c) we keep it the same
  35. 35.True or false: a dry leaf sinks in water. (a) True (b) False
  36. 36.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
  37. 37.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it sinks (c) it still floats (d) it dissolves
  38. 38.True or false: an ice cube floats on water. (a) False (b) True
  39. 39.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
  40. 40.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) turmeric powder (c) a towel for spills (d) a tub of water

Answer key

  1. False
  2. a pebble
  3. False
  4. a results table
  5. yeast
  6. False
  7. floats
  8. an ice-cream stick
  9. False
  10. needed
  11. a cork
  12. not needed
  13. needed
  14. not needed
  15. the kind of clay
  16. it can float
  17. it sinks
  18. False
  19. True
  20. a cork
  21. an ice-cream stick
  22. a pebble
  23. sinks
  24. it sinks
  25. not needed
  26. True
  27. we measure it
  28. an empty capped bottle
  29. a magnet
  30. needed
  31. its hollow shape
  32. yeast
  33. ice is less dense
  34. we keep it the same
  35. False
  36. floats
  37. it still floats
  38. True
  39. False
  40. turmeric powder

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