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Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 303 · 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.

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  1. 1.🛟 Which of these floats on water? (a) an iron nail (b) a pebble (c) a steel spoon (d) a feather
  2. 2.⚖️ 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) True (b) False
  3. 3.True or false: a ping-pong ball sinks in water. (a) True (b) False
  4. 4.True or false: yeast is not needed for the float-or-sink test. (a) False (b) True
  5. 5.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) ice is very cold (c) ice is less dense (d) water is sticky
  6. 6.🧺 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) a results table (d) a balloon
  7. 7.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a magnet (c) small test objects (d) a tub of water
  8. 8.True or false: a battery cell is needed for the float-or-sink test. (a) False (b) True
  9. 9.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
  10. 10.True or false: a metal key sinks in water. (a) False (b) True
  11. 11.🔍 Which is the odd one out? (a) an empty capped bottle (b) a feather (c) a ball of clay (d) an ice cube
  12. 12.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True
  13. 13.True or false: a mirror is needed for the float-or-sink test. (a) True (b) False
  14. 14.🧺 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 towel for spills (d) yeast
  15. 15.🧺 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) small test objects (d) a mirror
  16. 16.🛟 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 keep children safe (d) to hide the corks
  17. 17.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
  18. 18.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) small test objects (c) a tub of water (d) a magnet
  19. 19.⚖️ 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
  20. 20.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is the one thing we change. (a) False (b) True
  21. 21.True or false: a glass marble floats on water. (a) False (b) True
  22. 22.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
  23. 23.True or false: small test objects is not needed for the float-or-sink test. (a) False (b) True
  24. 24.🔍 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
  25. 25.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
  26. 26.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
  27. 27.🛟 Does a dry leaf float or sink in water? (a) floats (b) sinks
  28. 28.🌊 What pushes a floating cork upward? (a) the tub (b) the air above (c) the cork itself (d) the water
  29. 29.⚖️ 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
  30. 30.🛟 Which of these sinks in water? (a) a cork (b) an empty capped bottle (c) a ball of clay (d) a dry leaf
  31. 31.🔮 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
  32. 32.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
  33. 33.⚖️ 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 kind of clay (b) the amount of clay (c) the tub of water (d) the shape of the clay
  34. 34.⚖️ 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 measure it (b) we change it (c) we keep it the same
  35. 35.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a magnet (c) a battery cell (d) a tub of water
  36. 36.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
  37. 37.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) play near a deep pond (c) run around the tub (d) leave water on the floor
  38. 38.True or false: a cork sinks in water. (a) True (b) False
  39. 39.🔮 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 can float (d) it turns to stone
  40. 40.🛟 Does a steel spoon float or sink in water? (a) floats (b) sinks

Answer key

  1. a feather
  2. True
  3. False
  4. True
  5. ice is less dense
  6. a balloon
  7. a magnet
  8. False
  9. True
  10. True
  11. a ball of clay
  12. False
  13. False
  14. yeast
  15. a mirror
  16. to keep children safe
  17. needed
  18. a magnet
  19. False
  20. False
  21. False
  22. floats
  23. False
  24. it sinks
  25. needed
  26. not needed
  27. floats
  28. the water
  29. True
  30. a ball of clay
  31. it sinks
  32. not needed
  33. the shape of the clay
  34. we keep it the same
  35. a tub of water
  36. floats
  37. wipe up spills at once
  38. False
  39. it can float
  40. sinks

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