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Floating and Sinking Experiment Worksheet

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

Answer key

  1. it still floats
  2. we keep it the same
  3. yeast
  4. False
  5. the big log
  6. a glass marble
  7. we keep it the same
  8. the shape of the clay
  9. sinks
  10. it sinks
  11. a battery cell
  12. yeast
  13. the water
  14. we change it
  15. a mirror
  16. True
  17. to keep children safe
  18. a tub of water
  19. True
  20. a cork
  21. needed
  22. True
  23. a magnet
  24. whether it floats
  25. True
  26. not needed
  27. False
  28. an empty capped bottle
  29. True
  30. False
  31. small test objects
  32. not needed
  33. True
  34. True
  35. a coin
  36. True
  37. needed
  38. not needed
  39. True
  40. a pebble

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