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Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 502 · 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 is the safe way to do the float-or-sink test? (a) leave water on the floor (b) play near a deep pond (c) run around the tub (d) wipe up spills at once
  2. 2.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
  3. 3.🛟 Which of these sinks in water? (a) a ping-pong ball (b) an empty capped bottle (c) a metal key (d) a piece of thermocol
  4. 4.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a towel for spills (c) a magnet (d) a results table
  5. 5.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is the one thing we change. (a) True (b) False
  6. 6.🧺 Which of these is needed for the float-or-sink test? (a) a tub of water (b) a mirror (c) a balloon (d) yeast
  7. 7.⚖️ 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) False (b) True
  8. 8.🛟 Which of these sinks in water? (a) an ice cube (b) a piece of thermocol (c) an ice-cream stick (d) a pebble
  9. 9.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
  10. 10.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) ice is less dense (c) ice is very cold (d) water is sticky
  11. 11.🔍 Which is the odd one out? (a) an iron nail (b) a steel spoon (c) a feather (d) a ball of clay
  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 kind of clay (b) the tub of water (c) the amount of clay (d) the shape of the clay
  13. 13.🔍 Which is the odd one out? (a) a dry leaf (b) an empty capped bottle (c) a pebble (d) a cork
  14. 14.⚖️ 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 change it (c) we keep it the same
  15. 15.🔍 Which is the odd one out? (a) a cork (b) a ping-pong ball (c) a coin (d) a piece of thermocol
  16. 16.🔍 Which is the odd one out? (a) a coin (b) a piece of thermocol (c) a ball of clay (d) a glass marble
  17. 17.🥚 A fresh egg sinks in plain water. What makes it float? (a) lots of salt stirred in (b) more plain water (c) a little shaking (d) a few ice cubes
  18. 18.🌊 What pushes a floating cork upward? (a) the air above (b) the water (c) the tub (d) the cork itself
  19. 19.🛟 Which of these sinks in water? (a) a ping-pong ball (b) an ice cube (c) a steel spoon (d) a feather
  20. 20.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it still floats (c) it dissolves (d) it sinks
  21. 21.True or false: yeast is needed for the float-or-sink test. (a) False (b) True
  22. 22.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
  23. 23.⚖️ 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) True (b) False
  24. 24.True or false: a dry leaf sinks in water. (a) False (b) True
  25. 25.🔍 Which is the odd one out? (a) a dry leaf (b) a glass marble (c) a ping-pong ball (d) an empty capped bottle
  26. 26.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is what we measure. (a) True (b) False
  27. 27.True or false: a ball of clay sinks in water. (a) True (b) False
  28. 28.🔍 Which is the odd one out? (a) an empty capped bottle (b) an ice-cream stick (c) a feather (d) a ball of clay
  29. 29.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
  30. 30.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
  31. 31.True or false: a metal key floats on water. (a) True (b) False
  32. 32.True or false: a mirror is not needed for the float-or-sink test. (a) True (b) False
  33. 33.🛟 Which of these floats on water? (a) a coin (b) a cork (c) a steel spoon (d) a glass marble
  34. 34.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
  35. 35.True or false: turmeric powder is not needed for the float-or-sink test. (a) True (b) False
  36. 36.🛟 Which of these floats on water? (a) a pebble (b) a dry leaf (c) a coin (d) a glass marble
  37. 37.True or false: a dry leaf floats on water. (a) False (b) True
  38. 38.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
  39. 39.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a balloon (c) yeast (d) a results table
  40. 40.🔍 Which is the odd one out? (a) a glass marble (b) a ball of clay (c) a steel spoon (d) an ice-cream stick

Answer key

  1. wipe up spills at once
  2. sinks
  3. a metal key
  4. a magnet
  5. True
  6. a tub of water
  7. False
  8. a pebble
  9. needed
  10. ice is less dense
  11. a feather
  12. the shape of the clay
  13. a pebble
  14. we keep it the same
  15. a coin
  16. a piece of thermocol
  17. lots of salt stirred in
  18. the water
  19. a steel spoon
  20. it still floats
  21. False
  22. False
  23. False
  24. False
  25. a glass marble
  26. False
  27. True
  28. a ball of clay
  29. not needed
  30. True
  31. False
  32. True
  33. a cork
  34. not needed
  35. True
  36. a dry leaf
  37. True
  38. not needed
  39. a results table
  40. an ice-cream stick

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