← Floating and sinking lesson New set →

Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 457 · 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.⚖️ 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) False (b) True
  2. 2.⚖️ 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 keep it the same (c) we measure it
  3. 3.🛟 Which of these floats on water? (a) a steel spoon (b) a coin (c) a feather (d) a pebble
  4. 4.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
  5. 5.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
  6. 6.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is what we measure. (a) False (b) True
  7. 7.🛟 Which of these sinks in water? (a) a feather (b) a piece of thermocol (c) a glass marble (d) an empty capped bottle
  8. 8.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
  9. 9.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the big log (b) both of them (c) the small pebble (d) neither of them
  10. 10.🛟 Does a feather float or sink in water? (a) floats (b) sinks
  11. 11.⚖️ 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
  12. 12.🛟 Which of these sinks in water? (a) a cork (b) a dry leaf (c) a piece of thermocol (d) a steel spoon
  13. 13.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it dissolves (b) it sinks faster (c) it can float (d) it turns to stone
  14. 14.🔍 Which is the odd one out? (a) a piece of thermocol (b) a ping-pong ball (c) an ice-cream stick (d) a glass marble
  15. 15.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) water is sticky (c) ice is very cold (d) ice is less dense
  16. 16.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) yeast (b) a tub of water (c) small test objects (d) a towel for spills
  17. 17.⚖️ 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
  18. 18.True or false: a glass marble sinks in water. (a) True (b) False
  19. 19.True or false: a results table is needed for the float-or-sink test. (a) False (b) True
  20. 20.True or false: a ping-pong ball floats on water. (a) True (b) False
  21. 21.True or false: a cork floats on water. (a) False (b) True
  22. 22.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
  23. 23.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) play near a deep pond (c) wipe up spills at once (d) run around the tub
  24. 24.⚖️ 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) the amount of clay (c) whether it floats (d) the tub of water
  25. 25.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) a little shaking (c) lots of salt stirred in (d) a few ice cubes
  26. 26.🔍 Which is the odd one out? (a) an empty capped bottle (b) a pebble (c) a coin (d) an iron nail
  27. 27.True or false: a mirror is not needed for the float-or-sink test. (a) False (b) True
  28. 28.True or false: a feather sinks in water. (a) True (b) False
  29. 29.True or false: a magnet is needed for the float-or-sink test. (a) False (b) True
  30. 30.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a towel for spills (c) a tub of water (d) a mirror
  31. 31.🛟 Which of these floats on water? (a) a coin (b) a ball of clay (c) a glass marble (d) an ice cube
  32. 32.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it sinks (c) it turns blue (d) it melts
  33. 33.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
  34. 34.🛟 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 splash everyone (d) to win a prize
  35. 35.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
  36. 36.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats
  37. 37.True or false: a balloon is needed for the float-or-sink test. (a) False (b) True
  38. 38.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a results table (c) a magnet (d) small test objects
  39. 39.🔍 You drop a coin into a tub of water. What do you see? (a) it dissolves (b) it bounces up (c) it sinks (d) it floats
  40. 40.True or false: a ping-pong ball sinks in water. (a) True (b) False

Answer key

  1. False
  2. we keep it the same
  3. a feather
  4. needed
  5. False
  6. False
  7. a glass marble
  8. not needed
  9. the big log
  10. floats
  11. the amount of clay
  12. a steel spoon
  13. it can float
  14. a glass marble
  15. ice is less dense
  16. yeast
  17. False
  18. True
  19. True
  20. True
  21. True
  22. needed
  23. wipe up spills at once
  24. whether it floats
  25. lots of salt stirred in
  26. an empty capped bottle
  27. True
  28. False
  29. False
  30. a mirror
  31. an ice cube
  32. it sinks
  33. floats
  34. to keep children safe
  35. not needed
  36. floats
  37. False
  38. a magnet
  39. it sinks
  40. False

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids