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Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 181 · 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 yeast for the float-or-sink test? (a) needed (b) not needed
  2. 2.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) turmeric powder (b) a tub of water (c) small test objects (d) a results table
  3. 3.True or false: a steel spoon sinks in water. (a) True (b) False
  4. 4.⚖️ 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 measure it (b) we change it (c) we keep it the same
  5. 5.True or false: a steel spoon floats on water. (a) True (b) False
  6. 6.🌊 What pushes a floating cork upward? (a) the air above (b) the tub (c) the cork itself (d) the water
  7. 7.⚖️ 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 shape of the clay (c) the tub of water
  8. 8.True or false: a ping-pong ball sinks in water. (a) False (b) True
  9. 9.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
  10. 10.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
  11. 11.🛟 Which of these sinks in water? (a) an empty capped bottle (b) a cork (c) a coin (d) an ice cube
  12. 12.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it turns white (c) it sinks (d) it still floats
  13. 13.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it floats (c) it sinks (d) it dissolves
  14. 14.True or false: a glass marble sinks in water. (a) True (b) False
  15. 15.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it melts (c) it turns blue (d) it sinks
  16. 16.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it sinks faster (c) it can float (d) it dissolves
  17. 17.🔍 Which is the odd one out? (a) a cork (b) an empty capped bottle (c) a coin (d) a dry leaf
  18. 18.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
  19. 19.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
  20. 20.True or false: a glass marble floats on water. (a) True (b) False
  21. 21.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a results table (c) yeast (d) a balloon
  22. 22.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is the one thing we change. (a) True (b) False
  23. 23.🛟 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
  24. 24.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to splash everyone (c) to keep children safe (d) to win a prize
  25. 25.🛟 Does a ball of clay float or sink in water? (a) sinks (b) floats
  26. 26.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a results table (c) a battery cell (d) a tub of water
  27. 27.🛟 Which of these sinks in water? (a) a cork (b) a pebble (c) an empty capped bottle (d) a piece of thermocol
  28. 28.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) small test objects (c) a battery cell (d) a results table
  29. 29.🛟 Does an empty capped bottle float or sink in water? (a) sinks (b) floats
  30. 30.🔍 Which is the odd one out? (a) a dry leaf (b) a coin (c) an iron nail (d) a glass marble
  31. 31.True or false: an ice cube sinks in water. (a) True (b) False
  32. 32.🛟 Does a cork float or sink in water? (a) floats (b) sinks
  33. 33.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) small test objects (c) a magnet (d) a balloon
  34. 34.🛟 Does a pebble float or sink in water? (a) sinks (b) floats
  35. 35.True or false: a tub of water is needed for the float-or-sink test. (a) True (b) False
  36. 36.True or false: a mirror is needed for the float-or-sink test. (a) True (b) False
  37. 37.⚖️ 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 kind of clay (d) the shape of the clay
  38. 38.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
  39. 39.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
  40. 40.🛟 Does a feather float or sink in water? (a) sinks (b) floats

Answer key

  1. not needed
  2. turmeric powder
  3. True
  4. we keep it the same
  5. False
  6. the water
  7. the tub of water
  8. False
  9. needed
  10. needed
  11. a coin
  12. it still floats
  13. it sinks
  14. True
  15. it sinks
  16. it can float
  17. a coin
  18. needed
  19. not needed
  20. False
  21. a results table
  22. True
  23. wipe up spills at once
  24. to keep children safe
  25. sinks
  26. a battery cell
  27. a pebble
  28. a battery cell
  29. floats
  30. a dry leaf
  31. False
  32. floats
  33. small test objects
  34. sinks
  35. True
  36. False
  37. the shape of the clay
  38. not needed
  39. needed
  40. floats

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