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Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 982 · 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.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) wipe up spills at once (c) leave water on the floor (d) play near a deep pond
  2. 2.🔍 Which is the odd one out? (a) a pebble (b) a glass marble (c) a piece of thermocol (d) a steel spoon
  3. 3.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it sinks (c) it dissolves (d) it bounces up
  4. 4.🔍 Which is the odd one out? (a) a glass marble (b) a cork (c) a ball of clay (d) a pebble
  5. 5.True or false: a piece of thermocol floats on water. (a) False (b) True
  6. 6.True or false: a metal key sinks in water. (a) False (b) True
  7. 7.🔮 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
  8. 8.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
  9. 9.True or false: a mirror is not needed for the float-or-sink test. (a) True (b) False
  10. 10.⚖️ 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 tub of water (b) the amount of clay (c) the shape of the clay (d) the kind of clay
  11. 11.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a tub of water (c) a results table (d) a balloon
  12. 12.True or false: a balloon is needed for the float-or-sink test. (a) False (b) True
  13. 13.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is kept the same. (a) False (b) True
  14. 14.True or false: a tub of water is not needed for the float-or-sink test. (a) False (b) True
  15. 15.🛟 Which of these sinks in water? (a) a dry leaf (b) an empty capped bottle (c) a ball of clay (d) a feather
  16. 16.True or false: a cork floats on water. (a) True (b) False
  17. 17.True or false: a pebble sinks in water. (a) False (b) True
  18. 18.🔍 Which is the odd one out? (a) an ice cube (b) an iron nail (c) a glass marble (d) a coin
  19. 19.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a towel for spills (c) a tub of water (d) yeast
  20. 20.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
  21. 21.True or false: yeast is needed for the float-or-sink test. (a) False (b) True
  22. 22.True or false: a mirror is needed for the float-or-sink test. (a) True (b) False
  23. 23.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) sea water is warm (c) steel is very light (d) its hollow shape
  24. 24.True or false: an ice cube sinks in water. (a) True (b) False
  25. 25.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
  26. 26.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
  27. 27.True or false: a battery cell is needed for the float-or-sink test. (a) True (b) False
  28. 28.🛟 Which of these sinks in water? (a) a cork (b) a dry leaf (c) a steel spoon (d) an ice cube
  29. 29.True or false: a towel for spills is not needed for the float-or-sink test. (a) True (b) False
  30. 30.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is kept the same. (a) True (b) False
  31. 31.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is very cold (c) ice is magnetic (d) ice is less dense
  32. 32.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
  33. 33.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
  34. 34.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to keep children safe (c) to win a prize (d) to splash everyone
  35. 35.⚖️ 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 keep it the same (b) we measure it (c) we change it
  36. 36.🔍 Which is the odd one out? (a) an ice-cream stick (b) a cork (c) an empty capped bottle (d) a steel spoon
  37. 37.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it turns blue (c) it sinks (d) it floats higher
  38. 38.⚖️ 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) False (b) True
  39. 39.True or false: small test objects is needed for the float-or-sink test. (a) False (b) True
  40. 40.🛟 Does a pebble float or sink in water? (a) sinks (b) floats

Answer key

  1. wipe up spills at once
  2. a piece of thermocol
  3. it sinks
  4. a cork
  5. True
  6. True
  7. it still floats
  8. not needed
  9. True
  10. the shape of the clay
  11. a balloon
  12. False
  13. False
  14. False
  15. a ball of clay
  16. True
  17. True
  18. an ice cube
  19. yeast
  20. needed
  21. False
  22. False
  23. its hollow shape
  24. False
  25. True
  26. not needed
  27. False
  28. a steel spoon
  29. False
  30. False
  31. ice is less dense
  32. floats
  33. not needed
  34. to keep children safe
  35. we keep it the same
  36. a steel spoon
  37. it sinks
  38. False
  39. True
  40. sinks

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