← Floating and sinking lesson New set →

Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 37 · 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.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
  2. 2.🔍 Which is the odd one out? (a) a metal key (b) a coin (c) a glass marble (d) a piece of thermocol
  3. 3.True or false: a tub of water is not needed for the float-or-sink test. (a) False (b) True
  4. 4.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the tub of water”? (a) we keep it the same (b) we change it (c) we measure it
  5. 5.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is the one thing we change? (a) whether it floats (b) the tub of water (c) the shape of the clay (d) the amount of clay
  6. 6.True or false: a tub of water is needed for the float-or-sink test. (a) True (b) False
  7. 7.🔍 Which is the odd one out? (a) a ping-pong ball (b) a coin (c) an ice cube (d) an ice-cream stick
  8. 8.🛟 Does an empty capped bottle float or sink in water? (a) floats (b) sinks
  9. 9.🔍 Which is the odd one out? (a) an empty capped bottle (b) a dry leaf (c) a piece of thermocol (d) a pebble
  10. 10.True or false: an ice cube floats on water. (a) True (b) False
  11. 11.🔍 Which is the odd one out? (a) a metal key (b) a dry leaf (c) a cork (d) a piece of thermocol
  12. 12.⚖️ 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) True (b) False
  13. 13.⚖️ 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
  14. 14.🛟 Does an ice-cream stick float or sink in water? (a) floats (b) sinks
  15. 15.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) yeast (c) a tub of water (d) a mirror
  16. 16.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a results table (c) small test objects (d) a battery cell
  17. 17.⚖️ 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 keep it the same (b) we measure it (c) we change it
  18. 18.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a tub of water (c) turmeric powder (d) a results table
  19. 19.⚖️ 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
  20. 20.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a balloon (c) small test objects (d) a tub of water
  21. 21.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it bounces up (c) it floats (d) it dissolves
  22. 22.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
  23. 23.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is kept the same. (a) False (b) True
  24. 24.🛟 Which of these floats on water? (a) a ball of clay (b) a coin (c) a piece of thermocol (d) a metal key
  25. 25.🛟 Which of these floats on water? (a) a steel spoon (b) a feather (c) a metal key (d) a pebble
  26. 26.🔮 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
  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) whether it floats (c) the tub of water
  28. 28.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
  29. 29.True or false: a dry leaf sinks in water. (a) False (b) True
  30. 30.True or false: a towel for spills is not needed for the float-or-sink test. (a) True (b) False
  31. 31.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the shape of the clay”? (a) we measure it (b) we keep it the same (c) we change it
  32. 32.🌊 What pushes a floating cork upward? (a) the tub (b) the air above (c) the cork itself (d) the water
  33. 33.🛟 Which of these sinks in water? (a) a dry leaf (b) a ping-pong ball (c) a pebble (d) a piece of thermocol
  34. 34.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is magnetic (c) ice is very cold (d) ice is less dense
  35. 35.True or false: a piece of thermocol sinks in water. (a) False (b) True
  36. 36.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
  37. 37.True or false: a pebble floats on water. (a) False (b) True
  38. 38.True or false: a glass marble floats on water. (a) False (b) True
  39. 39.🛟 Which of these floats on water? (a) an iron nail (b) an ice cube (c) a glass marble (d) a steel spoon
  40. 40.True or false: a cork floats on water. (a) True (b) False

Answer key

  1. not needed
  2. a piece of thermocol
  3. False
  4. we keep it the same
  5. the shape of the clay
  6. True
  7. a coin
  8. floats
  9. a pebble
  10. True
  11. a metal key
  12. False
  13. True
  14. floats
  15. a tub of water
  16. a battery cell
  17. we keep it the same
  18. turmeric powder
  19. the amount of clay
  20. a balloon
  21. it sinks
  22. not needed
  23. True
  24. a piece of thermocol
  25. a feather
  26. it can float
  27. the tub of water
  28. needed
  29. False
  30. False
  31. we change it
  32. the water
  33. a pebble
  34. ice is less dense
  35. False
  36. needed
  37. False
  38. False
  39. an ice cube
  40. True

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