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Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 149 · 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 of these is needed for the float-or-sink test? (a) a balloon (b) a tub of water (c) a magnet (d) a battery cell
  2. 2.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) turmeric powder (c) a tub of water (d) a results table
  3. 3.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a balloon (b) a towel for spills (c) a tub of water (d) small test objects
  4. 4.🛟 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 splash everyone (d) to win a prize
  5. 5.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
  6. 6.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it melts (c) it turns blue (d) it sinks
  7. 7.⚖️ 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 measure it (c) we keep it the same
  8. 8.🚢 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
  9. 9.🧺 Which of these is not needed for the float-or-sink test? (a) a mirror (b) small test objects (c) a towel for spills (d) a results table
  10. 10.True or false: an ice cube floats on water. (a) True (b) False
  11. 11.🛟 Does a pebble float or sink in water? (a) floats (b) sinks
  12. 12.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
  13. 13.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) wipe up spills at once (c) run around the tub (d) leave water on the floor
  14. 14.True or false: a battery cell is needed for the float-or-sink test. (a) True (b) False
  15. 15.True or false: a mirror is not needed for the float-or-sink test. (a) False (b) True
  16. 16.True or false: turmeric powder is not needed for the float-or-sink test. (a) True (b) False
  17. 17.🛟 Does a piece of thermocol float or sink in water? (a) sinks (b) floats
  18. 18.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is magnetic (c) ice is very cold (d) ice is less dense
  19. 19.True or false: a ball of clay floats on water. (a) False (b) True
  20. 20.⚖️ 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 shape of the clay (c) whether it floats (d) the tub of water
  21. 21.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
  22. 22.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it turns white (c) it sinks (d) it dissolves
  23. 23.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is what we measure. (a) False (b) True
  24. 24.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
  25. 25.🛟 Which of these sinks in water? (a) a cork (b) a pebble (c) a feather (d) a ping-pong ball
  26. 26.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
  27. 27.🛟 Which of these floats on water? (a) a pebble (b) a ball of clay (c) a feather (d) a steel spoon
  28. 28.🛟 Which of these floats on water? (a) an iron nail (b) a coin (c) an ice-cream stick (d) a pebble
  29. 29.True or false: a pebble sinks in water. (a) True (b) False
  30. 30.🛟 Does a cork float or sink in water? (a) floats (b) sinks
  31. 31.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
  32. 32.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) lots of salt stirred in (c) more plain water (d) a little shaking
  33. 33.⚖️ 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
  34. 34.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
  35. 35.True or false: a battery cell is not needed for the float-or-sink test. (a) False (b) True
  36. 36.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is the one thing we change. (a) True (b) False
  37. 37.🛟 Which of these floats on water? (a) a glass marble (b) a pebble (c) a steel spoon (d) a piece of thermocol
  38. 38.⚖️ 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) True (b) False
  39. 39.True or false: an ice cube sinks in water. (a) False (b) True
  40. 40.🧺 Which of these is needed for the float-or-sink test? (a) small test objects (b) turmeric powder (c) a battery cell (d) a magnet

Answer key

  1. a tub of water
  2. turmeric powder
  3. a balloon
  4. to keep children safe
  5. False
  6. it sinks
  7. we change it
  8. its hollow shape
  9. a mirror
  10. True
  11. sinks
  12. not needed
  13. wipe up spills at once
  14. False
  15. True
  16. True
  17. floats
  18. ice is less dense
  19. False
  20. the shape of the clay
  21. needed
  22. it still floats
  23. False
  24. needed
  25. a pebble
  26. not needed
  27. a feather
  28. an ice-cream stick
  29. True
  30. floats
  31. floats
  32. lots of salt stirred in
  33. we keep it the same
  34. needed
  35. True
  36. False
  37. a piece of thermocol
  38. False
  39. False
  40. small test objects

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