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Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 745 · 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.🛟 Does an empty capped bottle float or sink in water? (a) sinks (b) floats
  2. 2.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
  3. 3.🌊 What pushes a floating cork upward? (a) the air above (b) the cork itself (c) the tub (d) the water
  4. 4.⚖️ 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 amount of clay (b) the shape of the clay (c) the tub of water (d) the kind of clay
  5. 5.🧊 Why does an ice cube float on water? (a) ice is less dense (b) ice is very cold (c) ice is magnetic (d) water is sticky
  6. 6.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) play near a deep pond (c) leave water on the floor (d) wipe up spills at once
  7. 7.True or false: a magnet is needed for the float-or-sink test. (a) True (b) False
  8. 8.True or false: yeast is not needed for the float-or-sink test. (a) False (b) True
  9. 9.🧺 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
  10. 10.True or false: a results table is needed for the float-or-sink test. (a) False (b) True
  11. 11.🛟 Does a feather float or sink in water? (a) floats (b) sinks
  12. 12.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a tub of water (c) a magnet (d) a towel for spills
  13. 13.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to splash everyone (c) to win a prize (d) to hide the corks
  14. 14.True or false: small test objects is needed for the float-or-sink test. (a) True (b) False
  15. 15.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) whether it floats (b) the amount of clay (c) the shape of the clay
  16. 16.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a magnet (b) small test objects (c) a tub of water (d) a towel for spills
  17. 17.True or false: turmeric powder is not needed for the float-or-sink test. (a) True (b) False
  18. 18.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a battery cell (b) a results table (c) a towel for spills (d) a tub of water
  19. 19.🛟 Which of these sinks in water? (a) a ball of clay (b) a cork (c) a feather (d) a piece of thermocol
  20. 20.⚖️ 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) whether it floats (c) the amount of clay (d) the kind of clay
  21. 21.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a results table (c) a towel for spills (d) a balloon
  22. 22.True or false: an ice-cream stick floats on water. (a) True (b) False
  23. 23.🧺 Which of these is not needed for the float-or-sink test? (a) a battery cell (b) a tub of water (c) small test objects (d) a towel for spills
  24. 24.🔮 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 can float (d) it turns to stone
  25. 25.True or false: a metal key floats on water. (a) False (b) True
  26. 26.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a balloon (c) a results table (d) turmeric powder
  27. 27.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats
  28. 28.🛟 Which of these floats on water? (a) an iron nail (b) a pebble (c) an ice-cream stick (d) a metal key
  29. 29.🔍 Which is the odd one out? (a) an iron nail (b) an ice-cream stick (c) a piece of thermocol (d) an empty capped bottle
  30. 30.True or false: a feather sinks in water. (a) False (b) True
  31. 31.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
  32. 32.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
  33. 33.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
  34. 34.🔍 Which is the odd one out? (a) an empty capped bottle (b) a dry leaf (c) a glass marble (d) a feather
  35. 35.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) small test objects (c) yeast (d) a results table
  36. 36.True or false: a feather floats on water. (a) True (b) False
  37. 37.🛟 Does a cork float or sink in water? (a) sinks (b) floats
  38. 38.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it dissolves (c) it sinks (d) it still floats
  39. 39.🛟 Which of these sinks in water? (a) a feather (b) an empty capped bottle (c) an ice-cream stick (d) a pebble
  40. 40.🛟 Does a steel spoon float or sink in water? (a) floats (b) sinks

Answer key

  1. floats
  2. sinks
  3. the water
  4. the shape of the clay
  5. ice is less dense
  6. wipe up spills at once
  7. False
  8. True
  9. a mirror
  10. True
  11. floats
  12. a magnet
  13. to keep children safe
  14. True
  15. the amount of clay
  16. a magnet
  17. True
  18. a battery cell
  19. a ball of clay
  20. whether it floats
  21. a balloon
  22. True
  23. a battery cell
  24. it can float
  25. False
  26. a results table
  27. floats
  28. an ice-cream stick
  29. an iron nail
  30. False
  31. not needed
  32. False
  33. needed
  34. a glass marble
  35. yeast
  36. True
  37. floats
  38. it still floats
  39. a pebble
  40. sinks

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