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Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 555 · 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.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to keep children safe (c) to hide the corks (d) to splash everyone
  2. 2.True or false: a pebble sinks in water. (a) False (b) True
  3. 3.🔍 Which is the odd one out? (a) a ball of clay (b) an iron nail (c) an ice-cream stick (d) a coin
  4. 4.True or false: a cork floats on water. (a) True (b) False
  5. 5.True or false: a mirror is needed for the float-or-sink test. (a) False (b) True
  6. 6.🛟 Does a feather float or sink in water? (a) sinks (b) floats
  7. 7.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
  8. 8.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) more plain water (c) a little shaking (d) lots of salt stirred in
  9. 9.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a results table (c) a magnet (d) a mirror
  10. 10.🛟 Does an ice-cream stick float or sink in water? (a) floats (b) sinks
  11. 11.🔍 Which is the odd one out? (a) a steel spoon (b) an iron nail (c) a cork (d) a ball of clay
  12. 12.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is the one thing we change. (a) False (b) True
  13. 13.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
  14. 14.🛟 Which of these sinks in water? (a) a glass marble (b) an ice-cream stick (c) a cork (d) an empty capped bottle
  15. 15.🛟 Does a cork float or sink in water? (a) sinks (b) floats
  16. 16.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it dissolves (c) it bounces up (d) it sinks
  17. 17.True or false: a dry leaf sinks in water. (a) False (b) True
  18. 18.⚖️ 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 change it (b) we keep it the same (c) we measure it
  19. 19.True or false: a feather floats on water. (a) False (b) True
  20. 20.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is magnetic (c) ice is less dense (d) ice is very cold
  21. 21.⚖️ 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) whether it floats (c) the kind of clay (d) the shape of the clay
  22. 22.🛟 Does a metal key float or sink in water? (a) floats (b) sinks
  23. 23.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) neither of them (c) the small pebble (d) the big log
  24. 24.🔍 Which is the odd one out? (a) a metal key (b) a ball of clay (c) a glass marble (d) a dry leaf
  25. 25.🛟 Does a coin float or sink in water? (a) floats (b) sinks
  26. 26.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
  27. 27.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
  28. 28.True or false: a ball of clay sinks in water. (a) False (b) True
  29. 29.🛟 Which of these sinks in water? (a) a pebble (b) a feather (c) a ping-pong ball (d) an ice cube
  30. 30.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a results table (c) yeast (d) a tub of water
  31. 31.🌊 What pushes a floating cork upward? (a) the air above (b) the water (c) the tub (d) the cork itself
  32. 32.🛟 Which of these sinks in water? (a) a feather (b) an iron nail (c) an ice-cream stick (d) an ice cube
  33. 33.⚖️ 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 shape of the clay (c) the amount of clay (d) the kind of clay
  34. 34.⚖️ 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
  35. 35.🛟 Does a pebble float or sink in water? (a) floats (b) sinks
  36. 36.🛟 Does a ball of clay float or sink in water? (a) floats (b) sinks
  37. 37.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
  38. 38.🔍 Which is the odd one out? (a) a ball of clay (b) a glass marble (c) a steel spoon (d) an ice cube
  39. 39.🛟 Which of these sinks in water? (a) an ice-cream stick (b) an ice cube (c) a cork (d) a metal key
  40. 40.🛟 Does a glass marble float or sink in water? (a) sinks (b) floats

Answer key

  1. to keep children safe
  2. True
  3. an ice-cream stick
  4. True
  5. False
  6. floats
  7. not needed
  8. lots of salt stirred in
  9. a results table
  10. floats
  11. a cork
  12. False
  13. needed
  14. a glass marble
  15. floats
  16. it sinks
  17. False
  18. we keep it the same
  19. True
  20. ice is less dense
  21. the shape of the clay
  22. sinks
  23. the big log
  24. a dry leaf
  25. sinks
  26. needed
  27. not needed
  28. True
  29. a pebble
  30. yeast
  31. the water
  32. an iron nail
  33. whether it floats
  34. the amount of clay
  35. sinks
  36. sinks
  37. not needed
  38. an ice cube
  39. a metal key
  40. sinks

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