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Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 425 · 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.🧺 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) a tub of water (d) yeast
  2. 2.⚖️ 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 change it (b) we keep it the same (c) we measure it
  3. 3.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
  4. 4.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) play near a deep pond (c) wipe up spills at once (d) run around the tub
  5. 5.🛟 Which of these floats on water? (a) a glass marble (b) a steel spoon (c) an iron nail (d) an ice cube
  6. 6.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) its hollow shape (c) sea water is warm (d) steel is very light
  7. 7.True or false: a tub of water is not needed for the float-or-sink test. (a) False (b) True
  8. 8.True or false: yeast is needed for the float-or-sink test. (a) False (b) True
  9. 9.⚖️ 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) False (b) True
  10. 10.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a towel for spills (c) a tub of water (d) turmeric powder
  11. 11.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a tub of water (c) a magnet (d) a battery cell
  12. 12.🔍 Which is the odd one out? (a) a glass marble (b) a dry leaf (c) a ping-pong ball (d) a feather
  13. 13.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
  14. 14.True or false: a towel for spills is needed for the float-or-sink test. (a) True (b) False
  15. 15.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
  16. 16.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the kind of clay”? (a) we change it (b) we measure it (c) we keep it the same
  17. 17.🔮 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
  18. 18.True or false: a ball of clay sinks in water. (a) True (b) False
  19. 19.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it turns white (c) it dissolves (d) it still floats
  20. 20.🧺 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) a balloon (d) small test objects
  21. 21.True or false: an iron nail sinks in water. (a) False (b) True
  22. 22.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to win a prize (c) to hide the corks (d) to keep children safe
  23. 23.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a balloon (c) a mirror (d) a results table
  24. 24.🔍 Which is the odd one out? (a) a dry leaf (b) a ping-pong ball (c) a coin (d) a piece of thermocol
  25. 25.🔍 Which is the odd one out? (a) a metal key (b) a dry leaf (c) a coin (d) a steel spoon
  26. 26.True or false: an ice-cream stick sinks in water. (a) False (b) True
  27. 27.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) the big log (c) neither of them (d) both of them
  28. 28.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
  29. 29.True or false: a ball of clay floats on water. (a) True (b) False
  30. 30.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a magnet (c) a towel for spills (d) turmeric powder
  31. 31.🛟 Which of these sinks in water? (a) an ice cube (b) a ping-pong ball (c) a feather (d) a glass marble
  32. 32.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is kept the same. (a) True (b) False
  33. 33.⚖️ 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
  34. 34.⚖️ 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
  35. 35.True or false: a magnet is needed for the float-or-sink test. (a) True (b) False
  36. 36.True or false: turmeric powder is needed for the float-or-sink test. (a) True (b) False
  37. 37.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
  38. 38.🛟 Which of these floats on water? (a) a ball of clay (b) a coin (c) an ice-cream stick (d) a steel spoon
  39. 39.True or false: a dry leaf floats on water. (a) False (b) True
  40. 40.🛟 Does an iron nail float or sink in water? (a) sinks (b) floats

Answer key

  1. yeast
  2. we change it
  3. needed
  4. wipe up spills at once
  5. an ice cube
  6. its hollow shape
  7. False
  8. False
  9. True
  10. turmeric powder
  11. a tub of water
  12. a glass marble
  13. needed
  14. True
  15. not needed
  16. we keep it the same
  17. it sinks
  18. True
  19. it still floats
  20. a balloon
  21. True
  22. to keep children safe
  23. a results table
  24. a coin
  25. a dry leaf
  26. False
  27. the big log
  28. floats
  29. False
  30. a towel for spills
  31. a glass marble
  32. True
  33. True
  34. True
  35. False
  36. False
  37. sinks
  38. an ice-cream stick
  39. True
  40. sinks

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