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Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 308 · 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.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
  2. 2.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is what we measure. (a) False (b) True
  3. 3.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
  4. 4.🔍 Which is the odd one out? (a) a ball of clay (b) a dry leaf (c) a steel spoon (d) a metal key
  5. 5.⚖️ 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
  6. 6.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
  7. 7.True or false: a mirror is needed for the float-or-sink test. (a) False (b) True
  8. 8.⚖️ 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 shape of the clay (c) the amount of clay
  9. 9.True or false: a results table is not needed for the float-or-sink test. (a) False (b) True
  10. 10.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
  11. 11.⚖️ 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 change it (c) we keep it the same
  12. 12.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it still floats (c) it dissolves (d) it turns white
  13. 13.🛟 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
  14. 14.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) play near a deep pond (c) run around the tub (d) leave water on the floor
  15. 15.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
  16. 16.🛟 Which of these sinks in water? (a) a feather (b) a ping-pong ball (c) an iron nail (d) a dry leaf
  17. 17.True or false: a ball of clay sinks in water. (a) True (b) False
  18. 18.🧺 Which of these is needed for the float-or-sink test? (a) a tub of water (b) a battery cell (c) a magnet (d) a balloon
  19. 19.True or false: a balloon is not needed for the float-or-sink test. (a) True (b) False
  20. 20.🛟 Does a coin float or sink in water? (a) floats (b) sinks
  21. 21.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
  22. 22.🧺 Which of these is not needed for the float-or-sink test? (a) turmeric powder (b) small test objects (c) a towel for spills (d) a tub of water
  23. 23.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a magnet (c) a towel for spills (d) a results table
  24. 24.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it dissolves (c) it can float (d) it sinks faster
  25. 25.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) small test objects (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.True or false: an iron nail floats on water. (a) False (b) True
  28. 28.🚢 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
  29. 29.🔍 Which is the odd one out? (a) a glass marble (b) a ball of clay (c) a cork (d) a steel spoon
  30. 30.🔍 Which is the odd one out? (a) an ice-cream stick (b) an empty capped bottle (c) an iron nail (d) a cork
  31. 31.🛟 Which of these floats on water? (a) a ball of clay (b) an iron nail (c) a ping-pong ball (d) a steel spoon
  32. 32.True or false: a cork floats on water. (a) False (b) True
  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: turmeric powder is not needed for the float-or-sink test. (a) True (b) False
  35. 35.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) ice is less dense (c) ice is very cold (d) water is sticky
  36. 36.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a results table (c) a battery cell (d) yeast
  37. 37.🌊 What pushes a floating cork upward? (a) the air above (b) the cork itself (c) the tub (d) the water
  38. 38.🧺 Which of these is needed for the float-or-sink test? (a) a towel for spills (b) turmeric powder (c) a mirror (d) a battery cell
  39. 39.🔍 Which is the odd one out? (a) a coin (b) an ice cube (c) a feather (d) a piece of thermocol
  40. 40.🛟 Does a feather float or sink in water? (a) floats (b) sinks

Answer key

  1. needed
  2. True
  3. not needed
  4. a dry leaf
  5. the kind of clay
  6. not needed
  7. False
  8. the amount of clay
  9. False
  10. needed
  11. we keep it the same
  12. it still floats
  13. to keep children safe
  14. wipe up spills at once
  15. not needed
  16. an iron nail
  17. True
  18. a tub of water
  19. True
  20. sinks
  21. needed
  22. turmeric powder
  23. a magnet
  24. it can float
  25. a mirror
  26. False
  27. False
  28. its hollow shape
  29. a cork
  30. an iron nail
  31. a ping-pong ball
  32. True
  33. True
  34. True
  35. ice is less dense
  36. a results table
  37. the water
  38. a towel for spills
  39. a coin
  40. floats

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