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Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 611 · 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.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) ice is very cold (c) ice is less dense (d) water is sticky
  2. 2.🧺 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 mirror (d) a towel for spills
  3. 3.🛟 Does a feather float or sink in water? (a) floats (b) sinks
  4. 4.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
  5. 5.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a tub of water (c) a magnet (d) a battery cell
  6. 6.True or false: a coin sinks in water. (a) True (b) False
  7. 7.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a results table (c) turmeric powder (d) a tub of water
  8. 8.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
  9. 9.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
  10. 10.True or false: a balloon is not needed for the float-or-sink test. (a) False (b) True
  11. 11.True or false: a towel for spills is not needed for the float-or-sink test. (a) True (b) False
  12. 12.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a results table (c) a magnet (d) a tub of water
  13. 13.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
  14. 14.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
  15. 15.🛟 Which of these floats on water? (a) a pebble (b) a feather (c) a steel spoon (d) a metal key
  16. 16.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) neither of them (c) both of them (d) the big log
  17. 17.🧺 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) yeast (d) a towel for spills
  18. 18.🧺 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) small test objects
  19. 19.True or false: a magnet is needed for the float-or-sink test. (a) False (b) True
  20. 20.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
  21. 21.🛟 Does a steel spoon float or sink in water? (a) sinks (b) floats
  22. 22.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
  23. 23.🛟 Which of these sinks in water? (a) a metal key (b) an ice cube (c) a feather (d) an empty capped bottle
  24. 24.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it dissolves (c) it still floats (d) it turns white
  25. 25.True or false: an ice cube sinks in water. (a) True (b) False
  26. 26.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the amount of clay (b) the shape of the clay (c) whether it floats
  27. 27.True or false: an empty capped bottle floats on water. (a) False (b) True
  28. 28.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is the one thing we change. (a) True (b) False
  29. 29.🛟 Which of these floats on water? (a) a piece of thermocol (b) a coin (c) a steel spoon (d) a glass marble
  30. 30.⚖️ 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
  31. 31.🛟 Does a ping-pong ball float or sink in water? (a) floats (b) sinks
  32. 32.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we keep it the same (b) we change it (c) we measure it
  33. 33.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to hide the corks (c) to win a prize (d) to splash everyone
  34. 34.True or false: a steel spoon sinks in water. (a) False (b) True
  35. 35.🧺 Which of these is not needed for the float-or-sink test? (a) turmeric powder (b) small test objects (c) a tub of water (d) a towel for spills
  36. 36.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) wipe up spills at once (c) play near a deep pond (d) run around the tub
  37. 37.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
  38. 38.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a balloon (b) small test objects (c) a tub of water (d) a towel for spills
  39. 39.🛟 Does a piece of thermocol float or sink in water? (a) floats (b) sinks
  40. 40.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) whether it floats (b) the tub of water (c) the kind of clay (d) the amount of clay

Answer key

  1. ice is less dense
  2. a mirror
  3. floats
  4. floats
  5. a tub of water
  6. True
  7. turmeric powder
  8. True
  9. not needed
  10. True
  11. False
  12. a magnet
  13. not needed
  14. True
  15. a feather
  16. the big log
  17. yeast
  18. a mirror
  19. False
  20. needed
  21. sinks
  22. needed
  23. a metal key
  24. it still floats
  25. False
  26. the amount of clay
  27. True
  28. False
  29. a piece of thermocol
  30. we keep it the same
  31. floats
  32. we measure it
  33. to keep children safe
  34. True
  35. turmeric powder
  36. wipe up spills at once
  37. needed
  38. a balloon
  39. floats
  40. whether it floats

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