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Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 761 · 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.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
  2. 2.🛟 Does a piece of thermocol float or sink in water? (a) floats (b) sinks
  3. 3.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
  4. 4.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it still floats (c) it sinks (d) it turns white
  5. 5.⚖️ 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
  6. 6.🛟 Does a steel spoon float or sink in water? (a) floats (b) sinks
  7. 7.🛟 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
  8. 8.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
  9. 9.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a tub of water (c) a battery cell (d) a mirror
  10. 10.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a results table (c) a balloon (d) yeast
  11. 11.🛟 Which of these floats on water? (a) a pebble (b) an iron nail (c) an ice cube (d) a ball of clay
  12. 12.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
  13. 13.🛟 Does a coin float or sink in water? (a) floats (b) sinks
  14. 14.🛟 Which of these sinks in water? (a) a ping-pong ball (b) an ice-cream stick (c) an iron nail (d) a piece of thermocol
  15. 15.🧺 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 mirror
  16. 16.True or false: a results table is not needed for the float-or-sink test. (a) True (b) False
  17. 17.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a towel for spills (c) a balloon (d) a tub of water
  18. 18.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) yeast (c) turmeric powder (d) small test objects
  19. 19.⚖️ 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
  20. 20.⚖️ 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
  21. 21.⚖️ 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) True (b) False
  22. 22.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) play near a deep pond (c) leave water on the floor (d) wipe up spills at once
  23. 23.🛟 Which of these sinks in water? (a) an ice cube (b) a feather (c) a cork (d) a coin
  24. 24.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) small test objects (c) turmeric powder (d) a tub of water
  25. 25.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
  26. 26.🔍 Which is the odd one out? (a) a glass marble (b) a steel spoon (c) a coin (d) a piece of thermocol
  27. 27.🛟 Does a ball of clay float or sink in water? (a) floats (b) sinks
  28. 28.🛟 Which of these sinks in water? (a) an empty capped bottle (b) a pebble (c) an ice-cream stick (d) a ping-pong ball
  29. 29.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
  30. 30.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) small test objects (c) a towel for spills (d) yeast
  31. 31.True or false: a dry leaf sinks in water. (a) False (b) True
  32. 32.True or false: a mirror is needed for the float-or-sink test. (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 kept the same. (a) False (b) True
  34. 34.🛟 Which of these sinks in water? (a) a piece of thermocol (b) a steel spoon (c) a ping-pong ball (d) an ice-cream stick
  35. 35.True or false: turmeric powder is needed for the float-or-sink test. (a) True (b) False
  36. 36.True or false: a pebble sinks in water. (a) False (b) True
  37. 37.🛟 Which of these floats on water? (a) a ball of clay (b) a feather (c) an iron nail (d) a steel spoon
  38. 38.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
  39. 39.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the amount of clay”? (a) we change it (b) we measure it (c) we keep it the same
  40. 40.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed

Answer key

  1. floats
  2. floats
  3. not needed
  4. it still floats
  5. False
  6. sinks
  7. to keep children safe
  8. True
  9. a tub of water
  10. a results table
  11. an ice cube
  12. True
  13. sinks
  14. an iron nail
  15. a mirror
  16. False
  17. a balloon
  18. small test objects
  19. False
  20. we keep it the same
  21. False
  22. wipe up spills at once
  23. a coin
  24. turmeric powder
  25. not needed
  26. a piece of thermocol
  27. sinks
  28. a pebble
  29. needed
  30. yeast
  31. False
  32. False
  33. True
  34. a steel spoon
  35. False
  36. True
  37. a feather
  38. needed
  39. we keep it the same
  40. not needed

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