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Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 138 · 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 sinks faster (b) it dissolves (c) it turns to stone (d) it can float
  2. 2.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
  3. 3.True or false: an ice-cream stick floats on water. (a) False (b) True
  4. 4.True or false: a towel for spills is needed for the float-or-sink test. (a) True (b) False
  5. 5.🌊 What pushes a floating cork upward? (a) the air above (b) the water (c) the cork itself (d) the tub
  6. 6.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
  7. 7.🔍 Which is the odd one out? (a) a steel spoon (b) an ice cube (c) an empty capped bottle (d) a cork
  8. 8.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
  9. 9.True or false: a feather floats on water. (a) False (b) True
  10. 10.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) yeast (c) a towel for spills (d) a balloon
  11. 11.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
  12. 12.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) small test objects (c) a tub of water (d) turmeric powder
  13. 13.🛟 Does an iron nail float or sink in water? (a) sinks (b) floats
  14. 14.🔮 A big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) both of them (c) the small pebble (d) the big log
  15. 15.🔍 Which is the odd one out? (a) an ice cube (b) a feather (c) a ball of clay (d) a ping-pong ball
  16. 16.True or false: a balloon is not needed for the float-or-sink test. (a) False (b) True
  17. 17.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it sinks (c) it still floats (d) it dissolves
  18. 18.True or false: a magnet is needed for the float-or-sink test. (a) True (b) False
  19. 19.⚖️ 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) the kind of clay (c) whether it floats
  20. 20.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it melts (c) it turns blue (d) it sinks
  21. 21.⚖️ 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
  22. 22.⚖️ 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) False (b) True
  23. 23.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
  24. 24.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) run around the tub (c) wipe up spills at once (d) play near a deep pond
  25. 25.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a towel for spills (c) a tub of water (d) a magnet
  26. 26.⚖️ 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
  27. 27.🛟 Which of these floats on water? (a) a cork (b) a ball of clay (c) a steel spoon (d) an iron nail
  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 towel for spills (c) small test objects (d) a balloon
  29. 29.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
  30. 30.🧺 Which of these is not needed for the float-or-sink test? (a) yeast (b) small test objects (c) a tub of water (d) a results table
  31. 31.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a results table (c) a towel for spills (d) a battery cell
  32. 32.⚖️ 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) True (b) False
  33. 33.🔍 Which is the odd one out? (a) a pebble (b) an ice cube (c) a steel spoon (d) a ball of clay
  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 the one thing we change. (a) True (b) False
  35. 35.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
  36. 36.True or false: a results table is not needed for the float-or-sink test. (a) True (b) False
  37. 37.🔍 Which is the odd one out? (a) an ice cube (b) a cork (c) an iron nail (d) a piece of thermocol
  38. 38.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is less dense (c) ice is very cold (d) ice is magnetic
  39. 39.True or false: a ball of clay floats on water. (a) False (b) True
  40. 40.True or false: an ice cube floats on water. (a) True (b) False

Answer key

  1. it can float
  2. needed
  3. True
  4. True
  5. the water
  6. not needed
  7. a steel spoon
  8. needed
  9. True
  10. a towel for spills
  11. needed
  12. turmeric powder
  13. sinks
  14. the big log
  15. a ball of clay
  16. True
  17. it still floats
  18. False
  19. the kind of clay
  20. it sinks
  21. False
  22. False
  23. not needed
  24. wipe up spills at once
  25. a magnet
  26. False
  27. a cork
  28. a balloon
  29. not needed
  30. yeast
  31. a battery cell
  32. False
  33. an ice cube
  34. True
  35. needed
  36. False
  37. an iron nail
  38. ice is less dense
  39. False
  40. True

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