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Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 812 · 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 results table for the float-or-sink test? (a) not needed (b) needed
  2. 2.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
  3. 3.True or false: yeast is not needed for the float-or-sink test. (a) True (b) False
  4. 4.🔍 Which is the odd one out? (a) a dry leaf (b) a feather (c) a metal key (d) an empty capped bottle
  5. 5.🛟 Which of these sinks in water? (a) a pebble (b) a cork (c) an empty capped bottle (d) a piece of thermocol
  6. 6.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
  7. 7.🧺 Which of these is not needed for the float-or-sink test? (a) a magnet (b) a tub of water (c) a results table (d) small test objects
  8. 8.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
  9. 9.🔍 Which is the odd one out? (a) a piece of thermocol (b) a coin (c) a dry leaf (d) an ice-cream stick
  10. 10.⚖️ 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) True (b) False
  11. 11.🛟 Does a ball of clay float or sink in water? (a) floats (b) sinks
  12. 12.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a tub of water (c) turmeric powder (d) a results table
  13. 13.🛟 Does a glass marble float or sink in water? (a) floats (b) sinks
  14. 14.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it dissolves (c) it sinks (d) it bounces up
  15. 15.True or false: a piece of thermocol sinks in water. (a) True (b) False
  16. 16.⚖️ 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) whether it floats (c) the shape of the clay (d) the kind of clay
  17. 17.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) lots of salt stirred in (c) a little shaking (d) a few ice cubes
  18. 18.🛟 Does an empty capped bottle float or sink in water? (a) sinks (b) floats
  19. 19.🔍 Which is the odd one out? (a) a cork (b) an iron nail (c) a piece of thermocol (d) a dry leaf
  20. 20.🔍 Which is the odd one out? (a) a dry leaf (b) a coin (c) a steel spoon (d) a ball of clay
  21. 21.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it still floats (c) it turns white (d) it dissolves
  22. 22.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a tub of water (c) a magnet (d) small test objects
  23. 23.🛟 Does a steel spoon float or sink in water? (a) sinks (b) floats
  24. 24.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a balloon (c) a results table (d) small test objects
  25. 25.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) neither of them (c) both of them (d) the big log
  26. 26.🛟 Does a cork float or sink in water? (a) floats (b) sinks
  27. 27.True or false: a cork floats on water. (a) True (b) False
  28. 28.🛟 Which of these floats on water? (a) a dry leaf (b) a glass marble (c) a pebble (d) a ball of clay
  29. 29.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
  30. 30.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) leave water on the floor (c) run around the tub (d) play near a deep pond
  31. 31.🛟 Which of these floats on water? (a) a pebble (b) a piece of thermocol (c) a glass marble (d) a steel spoon
  32. 32.🛟 Which of these floats on water? (a) an ice cube (b) a steel spoon (c) a coin (d) a pebble
  33. 33.🛟 Does an iron nail float or sink in water? (a) floats (b) sinks
  34. 34.⚖️ 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) False (b) True
  35. 35.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
  36. 36.⚖️ 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) True (b) False
  37. 37.True or false: a balloon is needed for the float-or-sink test. (a) True (b) False
  38. 38.True or false: small test objects is not needed for the float-or-sink test. (a) False (b) True
  39. 39.🔍 Which is the odd one out? (a) an ice-cream stick (b) a glass marble (c) a metal key (d) a steel spoon
  40. 40.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it turns blue (c) it melts (d) it sinks

Answer key

  1. needed
  2. needed
  3. True
  4. a metal key
  5. a pebble
  6. floats
  7. a magnet
  8. not needed
  9. a coin
  10. False
  11. sinks
  12. turmeric powder
  13. sinks
  14. it sinks
  15. False
  16. the shape of the clay
  17. lots of salt stirred in
  18. floats
  19. an iron nail
  20. a dry leaf
  21. it still floats
  22. a magnet
  23. sinks
  24. a balloon
  25. the big log
  26. floats
  27. True
  28. a dry leaf
  29. floats
  30. wipe up spills at once
  31. a piece of thermocol
  32. an ice cube
  33. sinks
  34. False
  35. not needed
  36. False
  37. False
  38. False
  39. an ice-cream stick
  40. it sinks

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