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Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 649 · 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.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it dissolves (c) it sinks faster (d) it turns to stone
  2. 2.True or false: a pebble floats on water. (a) False (b) True
  3. 3.True or false: a tub of water is needed for the float-or-sink test. (a) True (b) False
  4. 4.True or false: a towel for spills is not needed for the float-or-sink test. (a) True (b) False
  5. 5.🛟 Which of these floats on water? (a) a glass marble (b) an ice-cream stick (c) a metal key (d) a pebble
  6. 6.🧊 Why does an ice cube float on water? (a) ice is less dense (b) ice is very cold (c) water is sticky (d) ice is magnetic
  7. 7.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is what we measure. (a) True (b) False
  8. 8.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
  9. 9.🔍 Which is the odd one out? (a) a ball of clay (b) a coin (c) a feather (d) a pebble
  10. 10.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
  11. 11.🛟 Does a feather float or sink in water? (a) floats (b) sinks
  12. 12.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
  13. 13.True or false: a mirror is not needed for the float-or-sink test. (a) False (b) True
  14. 14.True or false: a tub of water is not needed for the float-or-sink test. (a) False (b) True
  15. 15.🔍 Which is the odd one out? (a) an iron nail (b) a steel spoon (c) an ice cube (d) a glass marble
  16. 16.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a results table (c) turmeric powder (d) a tub of water
  17. 17.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a balloon (b) a tub of water (c) small test objects (d) a towel for spills
  18. 18.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
  19. 19.🛟 Which of these sinks in water? (a) a cork (b) an empty capped bottle (c) a metal key (d) a dry leaf
  20. 20.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a dry leaf (c) a steel spoon (d) a cork
  21. 21.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it sinks (c) it floats higher (d) it melts
  22. 22.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) yeast (b) a towel for spills (c) small test objects (d) a results table
  23. 23.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the shape of the clay (b) whether it floats (c) the amount of clay
  24. 24.⚖️ 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
  25. 25.🛟 Which of these floats on water? (a) an empty capped bottle (b) an iron nail (c) a coin (d) a ball of clay
  26. 26.True or false: turmeric powder is needed for the float-or-sink test. (a) False (b) True
  27. 27.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
  28. 28.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a battery cell (c) small test objects (d) a results table
  29. 29.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the kind of clay (b) the shape of the clay (c) the amount of clay (d) whether it floats
  30. 30.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
  31. 31.⚖️ 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 shape of the clay (b) whether it floats (c) the tub of water (d) the kind of clay
  32. 32.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) it has a magnet (c) its hollow shape (d) sea water is warm
  33. 33.🛟 Does a metal key float or sink in water? (a) floats (b) sinks
  34. 34.True or false: a magnet is not needed for the float-or-sink test. (a) True (b) False
  35. 35.🛟 Does a ping-pong ball float or sink in water? (a) floats (b) sinks
  36. 36.🛟 Does a pebble float or sink in water? (a) sinks (b) floats
  37. 37.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) leave water on the floor (c) wipe up spills at once (d) play near a deep pond
  38. 38.🌊 What pushes a floating cork upward? (a) the tub (b) the air above (c) the water (d) the cork itself
  39. 39.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
  40. 40.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) turmeric powder (c) a tub of water (d) a balloon

Answer key

  1. it can float
  2. False
  3. True
  4. False
  5. an ice-cream stick
  6. ice is less dense
  7. False
  8. not needed
  9. a feather
  10. not needed
  11. floats
  12. not needed
  13. True
  14. False
  15. an ice cube
  16. turmeric powder
  17. a balloon
  18. needed
  19. a metal key
  20. a steel spoon
  21. it sinks
  22. yeast
  23. the amount of clay
  24. we keep it the same
  25. an empty capped bottle
  26. False
  27. needed
  28. a battery cell
  29. whether it floats
  30. True
  31. the shape of the clay
  32. its hollow shape
  33. sinks
  34. True
  35. floats
  36. sinks
  37. wipe up spills at once
  38. the water
  39. not needed
  40. a tub of water

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