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Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 661 · 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 results table (b) small test objects (c) yeast (d) a tub of water
  2. 2.True or false: turmeric powder is needed for the float-or-sink test. (a) False (b) True
  3. 3.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a battery cell (c) a mirror (d) small test objects
  4. 4.🛟 Which of these floats on water? (a) a steel spoon (b) an iron nail (c) a feather (d) a coin
  5. 5.🧺 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 results table (d) a towel for spills
  6. 6.⚖️ 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 tub of water (c) the shape of the clay (d) whether it floats
  7. 7.True or false: an iron nail sinks in water. (a) False (b) True
  8. 8.⚖️ 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
  9. 9.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is kept the same. (a) False (b) True
  10. 10.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
  11. 11.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we keep it the same (b) we change it (c) we measure it
  12. 12.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
  13. 13.True or false: a glass marble sinks in water. (a) True (b) False
  14. 14.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) it has a magnet (c) sea water is warm (d) steel is very light
  15. 15.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it turns white (c) it still floats (d) it sinks
  16. 16.True or false: a cork sinks in water. (a) True (b) False
  17. 17.🔍 Which is the odd one out? (a) a cork (b) a steel spoon (c) an ice cube (d) an empty capped bottle
  18. 18.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is magnetic (c) ice is less dense (d) ice is very cold
  19. 19.⚖️ 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
  20. 20.True or false: a piece of thermocol sinks in water. (a) False (b) True
  21. 21.True or false: turmeric powder is not needed for the float-or-sink test. (a) False (b) True
  22. 22.🧺 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) turmeric powder (d) a results table
  23. 23.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to keep children safe (c) to win a prize (d) to splash everyone
  24. 24.True or false: a battery cell is not needed for the float-or-sink test. (a) False (b) True
  25. 25.True or false: small test objects is not needed for the float-or-sink test. (a) False (b) True
  26. 26.⚖️ 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
  27. 27.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
  28. 28.🛟 Does a piece of thermocol float or sink in water? (a) sinks (b) floats
  29. 29.🧺 Which of these is needed for the float-or-sink test? (a) a tub of water (b) a magnet (c) turmeric powder (d) a battery cell
  30. 30.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) small test objects (c) a towel for spills (d) a balloon
  31. 31.⚖️ 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 change it (b) we measure it (c) we keep it the same
  32. 32.True or false: a mirror is needed for the float-or-sink test. (a) True (b) False
  33. 33.True or false: a coin floats on water. (a) False (b) True
  34. 34.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the amount of clay”? (a) we change it (b) we measure it (c) we keep it the same
  35. 35.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
  36. 36.🛟 Which of these sinks in water? (a) an empty capped bottle (b) a feather (c) a pebble (d) a piece of thermocol
  37. 37.🔍 Which is the odd one out? (a) an iron nail (b) a ball of clay (c) a dry leaf (d) a coin
  38. 38.🛟 Does a glass marble float or sink in water? (a) sinks (b) floats
  39. 39.True or false: a balloon is not needed for the float-or-sink test. (a) True (b) False
  40. 40.True or false: a feather floats on water. (a) True (b) False

Answer key

  1. yeast
  2. False
  3. small test objects
  4. a feather
  5. a magnet
  6. the shape of the clay
  7. True
  8. True
  9. False
  10. sinks
  11. we measure it
  12. not needed
  13. True
  14. its hollow shape
  15. it still floats
  16. False
  17. a steel spoon
  18. ice is less dense
  19. False
  20. False
  21. True
  22. turmeric powder
  23. to keep children safe
  24. True
  25. False
  26. False
  27. needed
  28. floats
  29. a tub of water
  30. a balloon
  31. we keep it the same
  32. False
  33. False
  34. we keep it the same
  35. not needed
  36. a pebble
  37. a dry leaf
  38. sinks
  39. True
  40. True

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