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Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 574 · 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: small test objects is not needed for the float-or-sink test. (a) False (b) True
  2. 2.🔍 Which is the odd one out? (a) a metal key (b) a ball of clay (c) a glass marble (d) a piece of thermocol
  3. 3.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a magnet (b) a towel for spills (c) small test objects (d) a results table
  4. 4.True or false: a cork floats on water. (a) False (b) True
  5. 5.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it turns white (c) it still floats (d) it dissolves
  6. 6.🛟 Does a metal key float or sink in water? (a) floats (b) sinks
  7. 7.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
  8. 8.🔍 Which is the odd one out? (a) a ping-pong ball (b) a piece of thermocol (c) a dry leaf (d) a coin
  9. 9.🧺 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 mirror
  10. 10.🧊 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
  11. 11.True or false: turmeric powder is needed for the float-or-sink test. (a) True (b) False
  12. 12.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) run around the tub (c) wipe up spills at once (d) leave water on the floor
  13. 13.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it turns blue (c) it sinks (d) it melts
  14. 14.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it sinks faster (c) it turns to stone (d) it dissolves
  15. 15.🔍 Which is the odd one out? (a) a coin (b) a pebble (c) an ice-cream stick (d) a metal key
  16. 16.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is kept the same. (a) False (b) True
  17. 17.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it bounces up (c) it sinks (d) it dissolves
  18. 18.True or false: turmeric powder is not needed for the float-or-sink test. (a) False (b) True
  19. 19.⚖️ 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
  20. 20.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the tub of water (b) whether it floats (c) the shape of the clay
  21. 21.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a battery cell (c) a results table (d) a tub of water
  22. 22.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
  23. 23.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to splash everyone (c) to hide the corks (d) to keep children safe
  24. 24.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a results table (c) a tub of water (d) a magnet
  25. 25.🛟 Does an iron nail float or sink in water? (a) sinks (b) floats
  26. 26.True or false: a ping-pong ball floats on water. (a) True (b) False
  27. 27.⚖️ 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
  28. 28.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) yeast (c) a results table (d) small test objects
  29. 29.🛟 Which of these floats on water? (a) a coin (b) a steel spoon (c) a metal key (d) a cork
  30. 30.True or false: a steel spoon sinks in water. (a) False (b) True
  31. 31.True or false: a pebble floats on water. (a) True (b) False
  32. 32.🛟 Which of these floats on water? (a) a pebble (b) a piece of thermocol (c) a coin (d) a steel spoon
  33. 33.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
  34. 34.True or false: a ball of clay sinks in water. (a) True (b) False
  35. 35.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
  36. 36.🛟 Which of these sinks in water? (a) a cork (b) a coin (c) a piece of thermocol (d) a feather
  37. 37.🧺 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
  38. 38.🛟 Does a feather float or sink in water? (a) floats (b) sinks
  39. 39.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
  40. 40.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is the one thing we change. (a) True (b) False

Answer key

  1. False
  2. a piece of thermocol
  3. a magnet
  4. True
  5. it still floats
  6. sinks
  7. needed
  8. a coin
  9. a mirror
  10. ice is less dense
  11. False
  12. wipe up spills at once
  13. it sinks
  14. it can float
  15. an ice-cream stick
  16. True
  17. it sinks
  18. True
  19. False
  20. the tub of water
  21. a battery cell
  22. floats
  23. to keep children safe
  24. a magnet
  25. sinks
  26. True
  27. the kind of clay
  28. yeast
  29. a cork
  30. True
  31. False
  32. a piece of thermocol
  33. floats
  34. True
  35. needed
  36. a coin
  37. yeast
  38. floats
  39. True
  40. False

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