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Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 389 · 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 pebble (b) a ball of clay (c) a feather (d) a coin
  2. 2.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it still floats (c) it turns white (d) it sinks
  3. 3.⚖️ 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 kind of clay (b) the amount of clay (c) the shape of the clay (d) the tub of water
  4. 4.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
  5. 5.🛟 Which of these sinks in water? (a) an ice-cream stick (b) an ice cube (c) an iron nail (d) a cork
  6. 6.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the shape of the clay (b) whether it floats (c) the kind of clay
  7. 7.🔍 Which is the odd one out? (a) a coin (b) a metal key (c) a cork (d) a pebble
  8. 8.⚖️ 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) True (b) False
  9. 9.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
  10. 10.🛟 Does a pebble float or sink in water? (a) floats (b) sinks
  11. 11.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is kept the same. (a) False (b) True
  12. 12.🛟 Which of these sinks in water? (a) a ball of clay (b) a ping-pong ball (c) a feather (d) a cork
  13. 13.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to hide the corks (c) to keep children safe (d) to win a prize
  14. 14.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it turns blue (c) it sinks (d) it melts
  15. 15.True or false: a mirror is not needed for the float-or-sink test. (a) True (b) False
  16. 16.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the big log (b) both of them (c) the small pebble (d) neither of them
  17. 17.🛟 Which of these floats on water? (a) a glass marble (b) a ball of clay (c) a pebble (d) an ice cube
  18. 18.True or false: a mirror is needed for the float-or-sink test. (a) True (b) False
  19. 19.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
  20. 20.True or false: a balloon is not needed for the float-or-sink test. (a) True (b) False
  21. 21.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a tub of water (c) a mirror (d) a results table
  22. 22.True or false: a magnet is not needed for the float-or-sink test. (a) False (b) True
  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 an ice-cream stick float or sink in water? (a) sinks (b) floats
  25. 25.🛟 Which of these floats on water? (a) a coin (b) a glass marble (c) a ping-pong ball (d) a steel spoon
  26. 26.🛟 Which of these floats on water? (a) a metal key (b) a glass marble (c) an iron nail (d) an ice-cream stick
  27. 27.⚖️ 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
  28. 28.True or false: an ice cube floats on water. (a) False (b) True
  29. 29.True or false: a battery cell is needed for the float-or-sink test. (a) False (b) True
  30. 30.True or false: a cork floats on water. (a) True (b) False
  31. 31.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) leave water on the floor (c) play near a deep pond (d) wipe up spills at once
  32. 32.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is the one thing we change. (a) False (b) True
  33. 33.🔍 Which is the odd one out? (a) a pebble (b) an ice-cream stick (c) a feather (d) a dry leaf
  34. 34.True or false: a magnet is needed for the float-or-sink test. (a) False (b) True
  35. 35.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is what we measure. (a) False (b) True
  36. 36.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
  37. 37.🛟 Does a ball of clay float or sink in water? (a) sinks (b) floats
  38. 38.True or false: a glass marble floats on water. (a) True (b) False
  39. 39.⚖️ 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) True (b) False
  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 results table (d) a magnet

Answer key

  1. a feather
  2. it still floats
  3. the shape of the clay
  4. not needed
  5. an iron nail
  6. the kind of clay
  7. a cork
  8. False
  9. not needed
  10. sinks
  11. True
  12. a ball of clay
  13. to keep children safe
  14. it sinks
  15. True
  16. the big log
  17. an ice cube
  18. False
  19. not needed
  20. True
  21. a mirror
  22. True
  23. its hollow shape
  24. floats
  25. a ping-pong ball
  26. an ice-cream stick
  27. we keep it the same
  28. True
  29. False
  30. True
  31. wipe up spills at once
  32. False
  33. a pebble
  34. False
  35. False
  36. needed
  37. sinks
  38. False
  39. True
  40. a magnet

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