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Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 632 · 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 turmeric powder 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: the shape of the clay is the one thing we change. (a) False (b) True
  3. 3.🛟 Which of these sinks in water? (a) a feather (b) a ping-pong ball (c) a pebble (d) an ice-cream stick
  4. 4.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
  5. 5.🛟 Does a glass marble float or sink in water? (a) floats (b) sinks
  6. 6.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a towel for spills (c) small test objects (d) a battery cell
  7. 7.True or false: a towel for spills is needed for the float-or-sink test. (a) True (b) False
  8. 8.🌊 What pushes a floating cork upward? (a) the air above (b) the water (c) the tub (d) the cork itself
  9. 9.True or false: a mirror is needed for the float-or-sink test. (a) False (b) True
  10. 10.True or false: a pebble sinks in water. (a) True (b) False
  11. 11.🛟 Does a piece of thermocol float or sink in water? (a) floats (b) sinks
  12. 12.🛟 Which of these floats on water? (a) a pebble (b) a metal key (c) a steel spoon (d) an ice cube
  13. 13.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) play near a deep pond (c) wipe up spills at once (d) leave water on the floor
  14. 14.🧺 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 mirror (d) a tub of water
  15. 15.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to splash everyone (c) to win a prize (d) to keep children safe
  16. 16.🧺 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
  17. 17.🛟 Which of these floats on water? (a) a metal key (b) a ball of clay (c) a ping-pong ball (d) a coin
  18. 18.⚖️ 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
  19. 19.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it floats higher (c) it turns blue (d) it sinks
  20. 20.True or false: an ice cube sinks in water. (a) True (b) False
  21. 21.🛟 Which of these sinks in water? (a) a glass marble (b) a ping-pong ball (c) an ice cube (d) a feather
  22. 22.True or false: a tub of water is needed for the float-or-sink test. (a) True (b) False
  23. 23.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a piece of thermocol (c) an ice cube (d) a steel spoon
  24. 24.True or false: a towel for spills is not needed for the float-or-sink test. (a) True (b) False
  25. 25.⚖️ 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
  26. 26.🥚 A fresh egg sinks in plain water. What makes it float? (a) a little shaking (b) more plain water (c) lots of salt stirred in (d) a few ice cubes
  27. 27.True or false: small test objects is needed for the float-or-sink test. (a) False (b) True
  28. 28.True or false: an ice-cream stick floats on water. (a) True (b) False
  29. 29.🛟 Which of these floats on water? (a) an empty capped bottle (b) an iron nail (c) a coin (d) a steel spoon
  30. 30.⚖️ 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 measure it (b) we change it (c) we keep it the same
  31. 31.🚢 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
  32. 32.True or false: an iron nail floats on water. (a) False (b) True
  33. 33.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is what we measure. (a) False (b) True
  34. 34.True or false: an empty capped bottle floats on water. (a) True (b) False
  35. 35.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) turmeric powder (c) a towel for spills (d) a results table
  36. 36.True or false: a results table is needed for the float-or-sink test. (a) False (b) True
  37. 37.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) turmeric powder (c) a tub of water (d) a battery cell
  38. 38.True or false: a battery cell is not needed for the float-or-sink test. (a) True (b) False
  39. 39.🔍 Which is the odd one out? (a) a glass marble (b) a steel spoon (c) a pebble (d) a piece of thermocol
  40. 40.⚖️ 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

Answer key

  1. not needed
  2. True
  3. a pebble
  4. not needed
  5. sinks
  6. a battery cell
  7. True
  8. the water
  9. False
  10. True
  11. floats
  12. an ice cube
  13. wipe up spills at once
  14. a mirror
  15. to keep children safe
  16. a magnet
  17. a ping-pong ball
  18. True
  19. it sinks
  20. False
  21. a glass marble
  22. True
  23. a steel spoon
  24. False
  25. True
  26. lots of salt stirred in
  27. True
  28. True
  29. an empty capped bottle
  30. we keep it the same
  31. its hollow shape
  32. False
  33. False
  34. True
  35. turmeric powder
  36. True
  37. a tub of water
  38. True
  39. a piece of thermocol
  40. False

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