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Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 287 · 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.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it dissolves (c) it still floats (d) it sinks
  2. 2.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a results table (c) a tub of water (d) turmeric powder
  3. 3.⚖️ 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 kind of clay (c) the shape of the clay
  4. 4.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
  5. 5.🛟 Which of these floats on water? (a) a ping-pong ball (b) a coin (c) a steel spoon (d) an iron nail
  6. 6.🌊 What pushes a floating cork upward? (a) the cork itself (b) the tub (c) the water (d) the air above
  7. 7.🛟 Which of these sinks in water? (a) a pebble (b) an ice cube (c) a dry leaf (d) a feather
  8. 8.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) small test objects (c) a battery cell (d) a balloon
  9. 9.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) steel is very light (c) it has a magnet (d) its hollow shape
  10. 10.🛟 Which of these floats on water? (a) a metal key (b) a pebble (c) a cork (d) a coin
  11. 11.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
  12. 12.True or false: a towel for spills is not needed for the float-or-sink test. (a) True (b) False
  13. 13.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a battery cell (c) a tub of water (d) a towel for spills
  14. 14.⚖️ 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
  15. 15.🛟 Does a cork float or sink in water? (a) sinks (b) floats
  16. 16.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats
  17. 17.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
  18. 18.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the amount of clay (b) the kind of clay (c) the tub of water (d) whether it floats
  19. 19.🛟 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 win a prize (d) to hide the corks
  20. 20.🔍 Which is the odd one out? (a) a feather (b) a dry leaf (c) an ice cube (d) a metal key
  21. 21.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is the one thing we change. (a) True (b) False
  22. 22.🔍 Which is the odd one out? (a) an ice-cream stick (b) an empty capped bottle (c) a glass marble (d) a cork
  23. 23.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) yeast (c) a mirror (d) a towel for spills
  24. 24.True or false: turmeric powder is needed for the float-or-sink test. (a) True (b) False
  25. 25.True or false: a cork floats on water. (a) True (b) False
  26. 26.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
  27. 27.🛟 Which of these floats on water? (a) an iron nail (b) a coin (c) a glass marble (d) an ice cube
  28. 28.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a results table (c) a battery cell (d) yeast
  29. 29.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
  30. 30.🛟 Does an ice-cream stick float or sink in water? (a) floats (b) sinks
  31. 31.🛟 Does a ping-pong ball float or sink in water? (a) floats (b) sinks
  32. 32.🛟 Does a feather float or sink in water? (a) sinks (b) floats
  33. 33.🛟 Does a coin float or sink in water? (a) sinks (b) floats
  34. 34.True or false: an ice-cream stick floats on water. (a) True (b) False
  35. 35.True or false: a dry leaf sinks in water. (a) True (b) False
  36. 36.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it can float (c) it dissolves (d) it turns to stone
  37. 37.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
  38. 38.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
  39. 39.True or false: yeast is not needed for the float-or-sink test. (a) False (b) True
  40. 40.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) small test objects (c) a mirror (d) a towel for spills

Answer key

  1. it still floats
  2. turmeric powder
  3. the kind of clay
  4. False
  5. a ping-pong ball
  6. the water
  7. a pebble
  8. small test objects
  9. its hollow shape
  10. a cork
  11. needed
  12. False
  13. a battery cell
  14. we keep it the same
  15. floats
  16. floats
  17. needed
  18. whether it floats
  19. to keep children safe
  20. a metal key
  21. True
  22. a glass marble
  23. a towel for spills
  24. False
  25. True
  26. not needed
  27. an ice cube
  28. a results table
  29. not needed
  30. floats
  31. floats
  32. floats
  33. sinks
  34. True
  35. False
  36. it can float
  37. not needed
  38. needed
  39. True
  40. a mirror

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