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Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 463 · 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.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) turmeric powder (c) a results table (d) a tub of water
  2. 2.⚖️ 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) True (b) False
  3. 3.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
  4. 4.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
  5. 5.🔍 Which is the odd one out? (a) a piece of thermocol (b) a feather (c) a pebble (d) an empty capped bottle
  6. 6.🛟 Does a ball of clay float or sink in water? (a) sinks (b) floats
  7. 7.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it dissolves (c) it still floats (d) it sinks
  8. 8.🛟 Does an iron nail float or sink in water? (a) sinks (b) floats
  9. 9.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it turns blue (c) it sinks (d) it floats higher
  10. 10.🔍 Which is the odd one out? (a) a piece of thermocol (b) a coin (c) an empty capped bottle (d) a cork
  11. 11.⚖️ 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
  12. 12.🛟 Which of these floats on water? (a) a ball of clay (b) a coin (c) a dry leaf (d) a metal key
  13. 13.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a balloon (c) a battery cell (d) small test objects
  14. 14.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a cork (c) a pebble (d) a ping-pong ball
  15. 15.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a tub of water (c) small test objects (d) a balloon
  16. 16.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
  17. 17.⚖️ 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 kind of clay (d) the amount of clay
  18. 18.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is the one thing we change. (a) False (b) True
  19. 19.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
  20. 20.🛟 Does a feather float or sink in water? (a) sinks (b) floats
  21. 21.🛟 Does a piece of thermocol float or sink in water? (a) floats (b) sinks
  22. 22.🔍 Which is the odd one out? (a) a steel spoon (b) an iron nail (c) a pebble (d) a piece of thermocol
  23. 23.True or false: an empty capped bottle floats on water. (a) True (b) False
  24. 24.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
  25. 25.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
  26. 26.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) run around the tub (c) leave water on the floor (d) wipe up spills at once
  27. 27.🛟 Which of these floats on water? (a) a glass marble (b) a steel spoon (c) a cork (d) a coin
  28. 28.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True
  29. 29.True or false: a towel for spills is needed for the float-or-sink test. (a) True (b) False
  30. 30.🛟 Which of these sinks in water? (a) an ice cube (b) a feather (c) an empty capped bottle (d) a steel spoon
  31. 31.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
  32. 32.⚖️ 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 measure it (b) we keep it the same (c) we change it
  33. 33.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to hide the corks (c) to win a prize (d) to keep children safe
  34. 34.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a tub of water (c) yeast (d) a balloon
  35. 35.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
  36. 36.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it sinks faster (c) it dissolves (d) it turns to stone
  37. 37.True or false: an iron nail floats on water. (a) False (b) True
  38. 38.🚢 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
  39. 39.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a battery cell (b) a tub of water (c) small test objects (d) a results table
  40. 40.True or false: a cork sinks in water. (a) True (b) False

Answer key

  1. turmeric powder
  2. True
  3. False
  4. not needed
  5. a pebble
  6. sinks
  7. it still floats
  8. sinks
  9. it sinks
  10. a coin
  11. True
  12. a dry leaf
  13. small test objects
  14. a pebble
  15. a balloon
  16. not needed
  17. the shape of the clay
  18. False
  19. needed
  20. floats
  21. floats
  22. a piece of thermocol
  23. True
  24. needed
  25. not needed
  26. wipe up spills at once
  27. a cork
  28. False
  29. True
  30. a steel spoon
  31. not needed
  32. we keep it the same
  33. to keep children safe
  34. a tub of water
  35. needed
  36. it can float
  37. False
  38. its hollow shape
  39. a battery cell
  40. False

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