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Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 802 · 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 a tub of water for the float-or-sink test? (a) not needed (b) needed
  2. 2.⚖️ 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
  3. 3.🧺 Which of these is needed for the float-or-sink test? (a) small test objects (b) yeast (c) a battery cell (d) a mirror
  4. 4.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
  5. 5.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the shape of the clay (b) the amount of clay (c) whether it floats (d) the kind of clay
  6. 6.🛟 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
  7. 7.🌊 What pushes a floating cork upward? (a) the air above (b) the tub (c) the water (d) the cork itself
  8. 8.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) small test objects (c) a towel for spills (d) a battery cell
  9. 9.🛟 Which of these floats on water? (a) a steel spoon (b) a coin (c) a glass marble (d) an ice cube
  10. 10.True or false: a balloon is not needed for the float-or-sink test. (a) False (b) True
  11. 11.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it still floats (c) it dissolves (d) it sinks
  12. 12.⚖️ 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) False (b) True
  13. 13.True or false: a cork sinks in water. (a) True (b) False
  14. 14.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a magnet (b) a towel for spills (c) small test objects (d) a tub of water
  15. 15.🔍 Which is the odd one out? (a) an ice-cream stick (b) an iron nail (c) a glass marble (d) a pebble
  16. 16.True or false: a ball of clay sinks in water. (a) False (b) True
  17. 17.True or false: a feather sinks in water. (a) False (b) True
  18. 18.🛟 Which of these sinks in water? (a) a ping-pong ball (b) a metal key (c) an ice-cream stick (d) a cork
  19. 19.🛟 Does an empty capped bottle float or sink in water? (a) sinks (b) floats
  20. 20.🛟 Does a coin float or sink in water? (a) floats (b) sinks
  21. 21.🛟 Which of these sinks in water? (a) a feather (b) an ice cube (c) a ball of clay (d) a piece of thermocol
  22. 22.🧺 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) a balloon
  23. 23.⚖️ 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 keep it the same (b) we measure it (c) we change it
  24. 24.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
  25. 25.🔍 You drop a coin into a tub of water. What do you see? (a) it dissolves (b) it floats (c) it bounces up (d) it sinks
  26. 26.True or false: a steel spoon sinks in water. (a) False (b) True
  27. 27.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a towel for spills (c) a magnet (d) a tub of water
  28. 28.🛟 Does a metal key float or sink in water? (a) floats (b) sinks
  29. 29.True or false: a dry leaf floats on water. (a) False (b) True
  30. 30.⚖️ 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 keep it the same (b) we change it (c) we measure it
  31. 31.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
  32. 32.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to keep children safe (c) to splash everyone (d) to hide the corks
  33. 33.🛟 Does a cork float or sink in water? (a) floats (b) sinks
  34. 34.🧺 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
  35. 35.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
  36. 36.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a balloon (c) a results table (d) a tub of water
  37. 37.True or false: yeast is not needed for the float-or-sink test. (a) False (b) True
  38. 38.⚖️ 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
  39. 39.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
  40. 40.🧺 Which of these is needed for the float-or-sink test? (a) a tub of water (b) yeast (c) turmeric powder (d) a balloon

Answer key

  1. needed
  2. we keep it the same
  3. small test objects
  4. floats
  5. whether it floats
  6. wipe up spills at once
  7. the water
  8. a battery cell
  9. an ice cube
  10. True
  11. it still floats
  12. False
  13. False
  14. a magnet
  15. an ice-cream stick
  16. True
  17. False
  18. a metal key
  19. floats
  20. sinks
  21. a ball of clay
  22. a balloon
  23. we change it
  24. not needed
  25. it sinks
  26. True
  27. a magnet
  28. sinks
  29. True
  30. we keep it the same
  31. not needed
  32. to keep children safe
  33. floats
  34. turmeric powder
  35. needed
  36. a balloon
  37. True
  38. True
  39. not needed
  40. a tub of water

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