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Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 460 · 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.True or false: a ping-pong ball floats on water. (a) False (b) True
  2. 2.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
  3. 3.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is the one thing we change. (a) True (b) False
  4. 4.⚖️ 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) True (b) False
  5. 5.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it floats higher (c) it sinks (d) it turns blue
  6. 6.True or false: a ball of clay sinks in water. (a) False (b) True
  7. 7.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
  8. 8.🌊 What pushes a floating cork upward? (a) the air above (b) the water (c) the tub (d) the cork itself
  9. 9.True or false: a results table is needed for the float-or-sink test. (a) False (b) True
  10. 10.⚖️ 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
  11. 11.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
  12. 12.⚖️ 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
  13. 13.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a tub of water (c) a towel for spills (d) yeast
  14. 14.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a balloon (c) a towel for spills (d) a results table
  15. 15.🔍 Which is the odd one out? (a) a glass marble (b) an iron nail (c) a metal key (d) a piece of thermocol
  16. 16.True or false: turmeric powder is needed for the float-or-sink test. (a) True (b) False
  17. 17.True or false: a steel spoon floats on water. (a) True (b) False
  18. 18.True or false: a tub of water is needed for the float-or-sink test. (a) True (b) False
  19. 19.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
  20. 20.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a towel for spills (c) a mirror (d) a results table
  21. 21.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) small test objects (c) turmeric powder (d) a results table
  22. 22.🛟 Does a dry leaf float or sink in water? (a) floats (b) sinks
  23. 23.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) steel is very light (c) it has a magnet (d) its hollow shape
  24. 24.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
  25. 25.True or false: a mirror is needed for the float-or-sink test. (a) False (b) True
  26. 26.🛟 Does a cork float or sink in water? (a) floats (b) sinks
  27. 27.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
  28. 28.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it sinks faster (c) it dissolves (d) it can float
  29. 29.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
  30. 30.🛟 Does a glass marble float or sink in water? (a) floats (b) sinks
  31. 31.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a balloon (c) a tub of water (d) a results table
  32. 32.🛟 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
  33. 33.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
  34. 34.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is what we measure. (a) True (b) False
  35. 35.🔍 Which is the odd one out? (a) a steel spoon (b) a ball of clay (c) a dry leaf (d) an iron nail
  36. 36.🔍 Which is the odd one out? (a) a glass marble (b) an ice cube (c) a cork (d) an ice-cream stick
  37. 37.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
  38. 38.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
  39. 39.🧺 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) a mirror (d) a results table
  40. 40.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it sinks (c) it still floats (d) it turns white

Answer key

  1. True
  2. floats
  3. True
  4. False
  5. it sinks
  6. True
  7. not needed
  8. the water
  9. True
  10. we keep it the same
  11. floats
  12. True
  13. yeast
  14. a balloon
  15. a piece of thermocol
  16. False
  17. False
  18. True
  19. not needed
  20. a mirror
  21. turmeric powder
  22. floats
  23. its hollow shape
  24. needed
  25. False
  26. floats
  27. sinks
  28. it can float
  29. needed
  30. sinks
  31. a balloon
  32. wipe up spills at once
  33. False
  34. False
  35. a dry leaf
  36. a glass marble
  37. not needed
  38. not needed
  39. a mirror
  40. it still floats

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