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Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 525 · 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 not needed for the float-or-sink test. (a) True (b) False
  2. 2.🔍 Which is the odd one out? (a) a pebble (b) a glass marble (c) a steel spoon (d) an empty capped bottle
  3. 3.True or false: a tub of water is not needed for the float-or-sink test. (a) False (b) True
  4. 4.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
  5. 5.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) whether it floats (b) the amount of clay (c) the shape of the clay
  6. 6.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a tub of water (c) a mirror (d) a battery cell
  7. 7.🛟 Which of these floats on water? (a) a pebble (b) a ball of clay (c) a coin (d) a ping-pong ball
  8. 8.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a tub of water (c) a results table (d) a battery cell
  9. 9.🔮 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
  10. 10.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) turmeric powder (c) a results table (d) a battery cell
  11. 11.🛟 Does a pebble float or sink in water? (a) floats (b) sinks
  12. 12.🛟 Which of these floats on water? (a) a pebble (b) a dry leaf (c) a metal key (d) a ball of clay
  13. 13.True or false: a tub of water is needed for the float-or-sink test. (a) True (b) False
  14. 14.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
  15. 15.🌊 What pushes a floating cork upward? (a) the air above (b) the cork itself (c) the water (d) the tub
  16. 16.⚖️ 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
  17. 17.🛟 Which of these floats on water? (a) a glass marble (b) an ice-cream stick (c) a coin (d) a ball of clay
  18. 18.True or false: a results table is not needed for the float-or-sink test. (a) True (b) False
  19. 19.True or false: yeast is not needed for the float-or-sink test. (a) False (b) True
  20. 20.True or false: a cork sinks in water. (a) False (b) True
  21. 21.⚖️ 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) False (b) True
  22. 22.True or false: a mirror is not needed for the float-or-sink test. (a) True (b) False
  23. 23.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) neither of them (c) both of them (d) the big log
  24. 24.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is kept the same. (a) False (b) True
  25. 25.🧺 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 results table (d) a mirror
  26. 26.True or false: a magnet is needed for the float-or-sink test. (a) False (b) True
  27. 27.🔍 Which is the odd one out? (a) a coin (b) a steel spoon (c) a cork (d) an iron nail
  28. 28.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
  29. 29.True or false: a coin floats on water. (a) True (b) False
  30. 30.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) a little shaking (c) lots of salt stirred in (d) more plain water
  31. 31.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a results table (c) a balloon (d) a towel for spills
  32. 32.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) whether it floats (b) the kind of clay (c) the shape of the clay (d) the tub of water
  33. 33.True or false: a towel for spills is needed for the float-or-sink test. (a) True (b) False
  34. 34.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is what we measure. (a) True (b) False
  35. 35.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) small test objects (c) a towel for spills (d) a magnet
  36. 36.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to keep children safe (c) to hide the corks (d) to win a prize
  37. 37.True or false: a dry leaf floats on water. (a) True (b) False
  38. 38.🛟 Which of these floats on water? (a) a ball of clay (b) a glass marble (c) an iron nail (d) a cork
  39. 39.🛟 Does a ping-pong ball float or sink in water? (a) floats (b) sinks
  40. 40.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) it has a magnet (c) its hollow shape (d) steel is very light

Answer key

  1. False
  2. an empty capped bottle
  3. False
  4. needed
  5. the amount of clay
  6. a tub of water
  7. a ping-pong ball
  8. a battery cell
  9. it can float
  10. a results table
  11. sinks
  12. a dry leaf
  13. True
  14. floats
  15. the water
  16. the kind of clay
  17. an ice-cream stick
  18. False
  19. True
  20. False
  21. True
  22. True
  23. the big log
  24. True
  25. a mirror
  26. False
  27. a cork
  28. not needed
  29. False
  30. lots of salt stirred in
  31. a balloon
  32. whether it floats
  33. True
  34. False
  35. a magnet
  36. to keep children safe
  37. True
  38. a cork
  39. floats
  40. its hollow shape

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