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Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 107 · 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.

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  1. 1.🔍 Which is the odd one out? (a) a ball of clay (b) a pebble (c) a steel spoon (d) a cork
  2. 2.🛟 Which of these floats on water? (a) a ball of clay (b) an ice cube (c) a coin (d) an iron nail
  3. 3.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to splash everyone (c) to hide the corks (d) to win a prize
  4. 4.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
  5. 5.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
  6. 6.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
  7. 7.True or false: a dry leaf floats on water. (a) False (b) True
  8. 8.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) lots of salt stirred in (c) a few ice cubes (d) a little shaking
  9. 9.🧺 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) small test objects (d) a magnet
  10. 10.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) leave water on the floor (c) wipe up spills at once (d) play near a deep pond
  11. 11.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
  12. 12.True or false: a cork floats on water. (a) False (b) True
  13. 13.True or false: an ice-cream stick floats on water. (a) False (b) True
  14. 14.🔍 Which is the odd one out? (a) a piece of thermocol (b) an empty capped bottle (c) a cork (d) a metal key
  15. 15.True or false: an iron nail floats on water. (a) False (b) True
  16. 16.🔍 Which is the odd one out? (a) a steel spoon (b) a pebble (c) a dry leaf (d) a metal key
  17. 17.🔍 Which is the odd one out? (a) a cork (b) an ice cube (c) a steel spoon (d) an ice-cream stick
  18. 18.True or false: small test objects is needed for the float-or-sink test. (a) True (b) False
  19. 19.True or false: a magnet is not needed for the float-or-sink test. (a) True (b) False
  20. 20.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) small test objects (c) a towel for spills (d) turmeric powder
  21. 21.🔮 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
  22. 22.🌊 What pushes a floating cork upward? (a) the cork itself (b) the air above (c) the tub (d) the water
  23. 23.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) its hollow shape (c) steel is very light (d) it has a magnet
  24. 24.🛟 Does a pebble float or sink in water? (a) sinks (b) floats
  25. 25.🧺 Which of these is needed for the float-or-sink test? (a) small test objects (b) a battery cell (c) turmeric powder (d) yeast
  26. 26.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a results table (c) a balloon (d) a magnet
  27. 27.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
  28. 28.⚖️ 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 keep it the same (b) we change it (c) we measure it
  29. 29.🛟 Does a ball of clay float or sink in water? (a) floats (b) sinks
  30. 30.🛟 Which of these floats on water? (a) an iron nail (b) a steel spoon (c) an ice-cream stick (d) a ball of clay
  31. 31.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) small test objects (c) a battery cell (d) a tub of water
  32. 32.🔍 Which is the odd one out? (a) a feather (b) an ice cube (c) a pebble (d) an ice-cream stick
  33. 33.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we keep it the same (b) we change it (c) we measure it
  34. 34.⚖️ 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
  35. 35.🛟 Does an iron nail float or sink in water? (a) sinks (b) floats
  36. 36.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is what we measure. (a) False (b) True
  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 magnet (d) a towel for spills
  38. 38.🛟 Does an empty capped bottle float or sink in water? (a) sinks (b) floats
  39. 39.True or false: a ball of clay sinks in water. (a) True (b) False
  40. 40.True or false: an empty capped bottle floats on water. (a) False (b) True

Answer key

  1. a cork
  2. an ice cube
  3. to keep children safe
  4. not needed
  5. not needed
  6. needed
  7. True
  8. lots of salt stirred in
  9. a magnet
  10. wipe up spills at once
  11. not needed
  12. True
  13. True
  14. a metal key
  15. False
  16. a dry leaf
  17. a steel spoon
  18. True
  19. True
  20. turmeric powder
  21. the big log
  22. the water
  23. its hollow shape
  24. sinks
  25. small test objects
  26. a results table
  27. needed
  28. we keep it the same
  29. sinks
  30. an ice-cream stick
  31. a battery cell
  32. a pebble
  33. we measure it
  34. the kind of clay
  35. sinks
  36. False
  37. a magnet
  38. floats
  39. True
  40. True

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