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Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 479 · 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) small test objects (b) a results table (c) a towel for spills (d) a balloon
  2. 2.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it sinks (c) it melts (d) it floats higher
  3. 3.True or false: a piece of thermocol floats on water. (a) False (b) True
  4. 4.🔍 Which is the odd one out? (a) a metal key (b) a coin (c) an ice cube (d) a ball of clay
  5. 5.True or false: an ice cube floats on water. (a) False (b) True
  6. 6.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) turmeric powder (c) a towel for spills (d) a magnet
  7. 7.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a tub of water (c) a results table (d) yeast
  8. 8.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is what we measure. (a) False (b) True
  9. 9.True or false: an ice cube sinks in water. (a) False (b) True
  10. 10.True or false: a cork floats on water. (a) True (b) False
  11. 11.⚖️ 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 tub of water (c) the amount of clay (d) whether it floats
  12. 12.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a piece of thermocol (c) a ping-pong ball (d) a coin
  13. 13.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it bounces up (c) it dissolves (d) it sinks
  14. 14.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a battery cell (c) a results table (d) a towel for spills
  15. 15.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
  16. 16.True or false: a feather sinks in water. (a) False (b) True
  17. 17.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a results table (c) small test objects (d) a mirror
  18. 18.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) sea water is warm (c) steel is very light (d) it has a magnet
  19. 19.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True
  20. 20.⚖️ 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
  21. 21.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) leave water on the floor (c) play near a deep pond (d) wipe up spills at once
  22. 22.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
  23. 23.🔮 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
  24. 24.🛟 Does an ice-cream stick float or sink in water? (a) floats (b) sinks
  25. 25.True or false: a steel spoon sinks in water. (a) False (b) True
  26. 26.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a magnet (c) small test objects (d) a towel for spills
  27. 27.🔍 Which is the odd one out? (a) an ice-cream stick (b) a steel spoon (c) a metal key (d) a coin
  28. 28.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the kind of clay (b) whether it floats (c) the shape of the clay
  29. 29.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a results table (c) a battery cell (d) a tub of water
  30. 30.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
  31. 31.True or false: a balloon is needed for the float-or-sink test. (a) False (b) True
  32. 32.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it can float (c) it dissolves (d) it sinks faster
  33. 33.🔍 Which is the odd one out? (a) an iron nail (b) a metal key (c) a dry leaf (d) a coin
  34. 34.True or false: an iron nail sinks in water. (a) True (b) False
  35. 35.True or false: a magnet is needed for the float-or-sink test. (a) True (b) False
  36. 36.⚖️ 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
  37. 37.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is kept the same. (a) True (b) False
  38. 38.🛟 Does a cork float or sink in water? (a) sinks (b) floats
  39. 39.⚖️ 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
  40. 40.True or false: an empty capped bottle floats on water. (a) True (b) False

Answer key

  1. a balloon
  2. it sinks
  3. True
  4. an ice cube
  5. True
  6. a towel for spills
  7. yeast
  8. False
  9. False
  10. True
  11. whether it floats
  12. a coin
  13. it sinks
  14. a battery cell
  15. False
  16. False
  17. a mirror
  18. its hollow shape
  19. False
  20. we change it
  21. wipe up spills at once
  22. not needed
  23. it still floats
  24. floats
  25. True
  26. a magnet
  27. an ice-cream stick
  28. the kind of clay
  29. a battery cell
  30. not needed
  31. False
  32. it can float
  33. a dry leaf
  34. True
  35. False
  36. True
  37. False
  38. floats
  39. False
  40. True

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