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Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 675 · 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 towel for spills is needed for the float-or-sink test. (a) True (b) False
  2. 2.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
  3. 3.🌊 What pushes a floating cork upward? (a) the cork itself (b) the tub (c) the water (d) the air above
  4. 4.True or false: an ice-cream stick floats on water. (a) True (b) False
  5. 5.🧺 Which of these is needed for the float-or-sink test? (a) a towel for spills (b) a balloon (c) a magnet (d) turmeric powder
  6. 6.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) turmeric powder (c) a results table (d) small test objects
  7. 7.🛟 Does a ping-pong ball float or sink in water? (a) floats (b) sinks
  8. 8.🛟 Does a coin float or sink in water? (a) sinks (b) floats
  9. 9.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a battery cell (c) a tub of water (d) a towel for spills
  10. 10.🛟 Does a steel spoon float or sink in water? (a) sinks (b) floats
  11. 11.🛟 Does a ball of clay 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 the one thing we change? (a) the shape of the clay (b) the kind of clay (c) the amount of clay (d) the tub of water
  13. 13.🔍 Which is the odd one out? (a) a piece of thermocol (b) a ball of clay (c) an ice-cream stick (d) an ice cube
  14. 14.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
  15. 15.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
  16. 16.⚖️ 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 change it (b) we measure it (c) we keep it the same
  17. 17.⚖️ 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 measure it (b) we keep it the same (c) we change it
  18. 18.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a results table (c) a magnet (d) turmeric powder
  19. 19.🛟 Which of these sinks in water? (a) an ice cube (b) an ice-cream stick (c) a coin (d) a dry leaf
  20. 20.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
  21. 21.🛟 Which of these sinks in water? (a) a dry leaf (b) a cork (c) a pebble (d) a ping-pong ball
  22. 22.🔍 Which is the odd one out? (a) a ping-pong ball (b) an ice-cream stick (c) a dry leaf (d) an iron nail
  23. 23.⚖️ 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
  24. 24.🛟 Which of these floats on water? (a) a feather (b) a coin (c) a pebble (d) a metal key
  25. 25.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
  26. 26.🧺 Which of these is not needed for the float-or-sink test? (a) yeast (b) a tub of water (c) a towel for spills (d) a results table
  27. 27.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a steel spoon (c) a dry leaf (d) an empty capped bottle
  28. 28.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a towel for spills (c) a tub of water (d) a magnet
  29. 29.True or false: a results table is not needed for the float-or-sink test. (a) True (b) False
  30. 30.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a magnet (c) a tub of water (d) turmeric powder
  31. 31.🔮 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
  32. 32.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
  33. 33.True or false: a ping-pong ball sinks in water. (a) False (b) True
  34. 34.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) steel is very light (c) it has a magnet (d) sea water is warm
  35. 35.True or false: a piece of thermocol floats on water. (a) True (b) False
  36. 36.True or false: a ball of clay sinks in water. (a) False (b) True
  37. 37.🔮 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
  38. 38.True or false: a mirror is not needed for the float-or-sink test. (a) False (b) True
  39. 39.🛟 Does a pebble float or sink in water? (a) sinks (b) floats
  40. 40.⚖️ 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

Answer key

  1. True
  2. sinks
  3. the water
  4. True
  5. a towel for spills
  6. turmeric powder
  7. floats
  8. sinks
  9. a battery cell
  10. sinks
  11. sinks
  12. the shape of the clay
  13. a ball of clay
  14. not needed
  15. not needed
  16. we keep it the same
  17. we keep it the same
  18. a results table
  19. a coin
  20. floats
  21. a pebble
  22. an iron nail
  23. we keep it the same
  24. a feather
  25. not needed
  26. yeast
  27. a steel spoon
  28. a magnet
  29. False
  30. a tub of water
  31. it still floats
  32. needed
  33. False
  34. its hollow shape
  35. True
  36. True
  37. it sinks
  38. True
  39. sinks
  40. the kind of clay

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