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Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 923 · 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: an iron nail floats on water. (a) False (b) True
  2. 2.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a tub of water (c) a results table (d) yeast
  3. 3.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is what we measure. (a) False (b) True
  4. 4.⚖️ 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 tub of water
  5. 5.⚖️ 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
  6. 6.🛟 Which of these sinks in water? (a) a ping-pong ball (b) a cork (c) a glass marble (d) an ice cube
  7. 7.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it dissolves (c) it turns to stone (d) it sinks faster
  8. 8.⚖️ 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 tub of water (b) the amount of clay (c) the shape of the clay (d) the kind of clay
  9. 9.True or false: small test objects is needed for the float-or-sink test. (a) False (b) True
  10. 10.🛟 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 keep children safe (d) to hide the corks
  11. 11.True or false: a ping-pong ball floats on water. (a) True (b) False
  12. 12.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a mirror (c) a towel for spills (d) small test objects
  13. 13.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
  14. 14.🔍 Which is the odd one out? (a) an iron nail (b) an empty capped bottle (c) a feather (d) a cork
  15. 15.🛟 Which of these floats on water? (a) a metal key (b) a steel spoon (c) a pebble (d) a cork
  16. 16.🛟 Does an iron nail float or sink in water? (a) floats (b) sinks
  17. 17.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the amount of clay (b) the shape of the clay (c) whether it floats
  18. 18.🛟 Does an ice-cream stick float or sink in water? (a) floats (b) sinks
  19. 19.🥚 A fresh egg sinks in plain water. What makes it float? (a) a little shaking (b) more plain water (c) a few ice cubes (d) lots of salt stirred in
  20. 20.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) small test objects (c) yeast (d) a tub of water
  21. 21.🛟 Does a feather float or sink in water? (a) floats (b) sinks
  22. 22.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it melts (c) it sinks (d) it floats higher
  23. 23.🛟 Which of these floats on water? (a) a coin (b) a piece of thermocol (c) a pebble (d) a glass marble
  24. 24.🛟 Does a steel spoon float or sink in water? (a) sinks (b) floats
  25. 25.⚖️ 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
  26. 26.True or false: a coin floats on water. (a) False (b) True
  27. 27.🔍 Which is the odd one out? (a) a pebble (b) a piece of thermocol (c) a steel spoon (d) a coin
  28. 28.🛟 Does a metal key float or sink in water? (a) floats (b) sinks
  29. 29.True or false: a tub of water is not needed for the float-or-sink test. (a) False (b) True
  30. 30.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a battery cell (c) turmeric powder (d) a results table
  31. 31.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
  32. 32.🔮 A big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) the small pebble (c) the big log (d) both of them
  33. 33.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
  34. 34.True or false: a mirror is not needed for the float-or-sink test. (a) False (b) True
  35. 35.🛟 Does a ping-pong ball float or sink in water? (a) floats (b) sinks
  36. 36.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a magnet (c) a tub of water (d) a mirror
  37. 37.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a tub of water (c) a results table (d) a balloon
  38. 38.True or false: turmeric powder is not needed for the float-or-sink test. (a) True (b) False
  39. 39.🧺 Which of these is not needed for the float-or-sink test? (a) a battery cell (b) small test objects (c) a tub of water (d) a towel for spills
  40. 40.True or false: yeast is not needed for the float-or-sink test. (a) False (b) True

Answer key

  1. False
  2. yeast
  3. True
  4. the tub of water
  5. we keep it the same
  6. a glass marble
  7. it can float
  8. the shape of the clay
  9. True
  10. to keep children safe
  11. True
  12. a mirror
  13. not needed
  14. an iron nail
  15. a cork
  16. sinks
  17. the amount of clay
  18. floats
  19. lots of salt stirred in
  20. yeast
  21. floats
  22. it sinks
  23. a piece of thermocol
  24. sinks
  25. False
  26. False
  27. a piece of thermocol
  28. sinks
  29. False
  30. a results table
  31. needed
  32. the big log
  33. needed
  34. True
  35. floats
  36. a tub of water
  37. a balloon
  38. True
  39. a battery cell
  40. True

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