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Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 665 · 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.🔮 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
  2. 2.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
  3. 3.🔍 Which is the odd one out? (a) a glass marble (b) a metal key (c) an ice-cream stick (d) a pebble
  4. 4.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it sinks (c) it dissolves (d) it bounces up
  5. 5.True or false: a towel for spills 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: whether it floats is what we measure. (a) False (b) True
  7. 7.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
  8. 8.⚖️ 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 tub of water (b) whether it floats (c) the amount of clay (d) the shape of the clay
  9. 9.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
  10. 10.True or false: yeast is not needed for the float-or-sink test. (a) False (b) True
  11. 11.True or false: a balloon is not needed for the float-or-sink test. (a) False (b) True
  12. 12.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
  13. 13.🌊 What pushes a floating cork upward? (a) the tub (b) the air above (c) the cork itself (d) the water
  14. 14.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to hide the corks (c) to win a prize (d) to splash everyone
  15. 15.🛟 Does a ping-pong ball float or sink in water? (a) floats (b) sinks
  16. 16.🛟 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
  17. 17.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) the big log (c) both of them (d) neither of them
  18. 18.🛟 Which of these sinks in water? (a) a piece of thermocol (b) an iron nail (c) an ice cube (d) a dry leaf
  19. 19.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) yeast (c) small test objects (d) a tub of water
  20. 20.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) a little shaking (c) lots of salt stirred in (d) more plain water
  21. 21.True or false: an ice-cream stick floats on water. (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) a results table (c) a battery cell (d) a towel for spills
  23. 23.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a tub of water (c) a balloon (d) a mirror
  24. 24.🛟 Does a cork float or sink in water? (a) floats (b) sinks
  25. 25.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it sinks (c) it floats higher (d) it melts
  26. 26.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the tub of water (b) the shape of the clay (c) the kind of clay (d) whether it floats
  27. 27.🛟 Does a coin float or sink in water? (a) floats (b) sinks
  28. 28.🧺 Which of these is needed for the float-or-sink test? (a) a results table (b) a magnet (c) yeast (d) a mirror
  29. 29.🛟 Which of these floats on water? (a) a dry leaf (b) a pebble (c) a steel spoon (d) an iron nail
  30. 30.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) turmeric powder (c) a towel for spills (d) a balloon
  31. 31.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a towel for spills (c) a balloon (d) a tub of water
  32. 32.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats
  33. 33.True or false: a magnet is needed for the float-or-sink test. (a) False (b) True
  34. 34.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) small test objects (c) a results table (d) a mirror
  35. 35.True or false: a pebble sinks in water. (a) True (b) False
  36. 36.🔍 Which is the odd one out? (a) an ice cube (b) a cork (c) an iron nail (d) an ice-cream stick
  37. 37.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
  38. 38.🛟 Which of these floats on water? (a) a pebble (b) a glass marble (c) an ice cube (d) a ball of clay
  39. 39.⚖️ 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) False (b) True
  40. 40.True or false: a towel for spills is needed for the float-or-sink test. (a) True (b) False

Answer key

  1. it can float
  2. False
  3. an ice-cream stick
  4. it sinks
  5. False
  6. True
  7. not needed
  8. the shape of the clay
  9. floats
  10. True
  11. True
  12. not needed
  13. the water
  14. to keep children safe
  15. floats
  16. wipe up spills at once
  17. the big log
  18. an iron nail
  19. yeast
  20. lots of salt stirred in
  21. True
  22. a battery cell
  23. a tub of water
  24. floats
  25. it sinks
  26. whether it floats
  27. sinks
  28. a results table
  29. a dry leaf
  30. a towel for spills
  31. a balloon
  32. floats
  33. False
  34. a mirror
  35. True
  36. an iron nail
  37. floats
  38. an ice cube
  39. False
  40. True

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