Floating and Sinking Experiment Worksheet
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.🧺 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) turmeric powder (d) a results table
- 2.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) whether it floats (b) the tub of water (c) the shape of the clay (d) the amount of clay
- 3.🥚 A fresh egg sinks in plain water. What makes it float? (a) a little shaking (b) more plain water (c) a few ice cubes (d) lots of salt stirred in
- 4.🧺 Which of these is needed for the float-or-sink test? (a) small test objects (b) yeast (c) turmeric powder (d) a battery cell
- 5.🔮 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
- 6.🛟 Does a feather float or sink in water? (a) sinks (b) floats
- 7.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
- 8.🧺 Which of these is needed for the float-or-sink test? (a) a towel for spills (b) a magnet (c) a mirror (d) turmeric powder
- 9.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) yeast (b) small test objects (c) a towel for spills (d) a tub of water
- 10.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
- 11.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
- 12.True or false: an ice cube sinks in water. (a) False (b) True
- 13.🛟 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
- 14.True or false: a coin floats on water. (a) True (b) False
- 15.True or false: a towel for spills is needed for the float-or-sink test. (a) True (b) False
- 16.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a tub of water (c) a mirror (d) turmeric powder
- 17.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the kind of clay”? (a) we measure it (b) we change it (c) we keep it the same
- 18.True or false: a battery cell is needed for the float-or-sink test. (a) False (b) True
- 19.🛟 Does a ball of clay float or sink in water? (a) floats (b) sinks
- 20.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it dissolves (c) it sinks faster (d) it can float
- 21.⚖️ 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) True (b) False
- 22.🛟 Does a piece of thermocol float or sink in water? (a) sinks (b) floats
- 23.⚖️ 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
- 24.⚖️ 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
- 25.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a towel for spills (c) a tub of water (d) a magnet
- 26.True or false: a piece of thermocol floats on water. (a) True (b) False
- 27.True or false: a glass marble floats on water. (a) True (b) False
- 28.True or false: turmeric powder is needed for the float-or-sink test. (a) True (b) False
- 29.True or false: a mirror is needed for the float-or-sink test. (a) True (b) False
- 30.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a battery cell (b) a tub of water (c) small test objects (d) a towel for spills
- 31.⚖️ 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) True (b) False
- 32.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is very cold (c) ice is magnetic (d) ice is less dense
- 33.🧺 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
- 34.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
- 35.🧺 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 tub of water (d) a balloon
- 36.⚖️ 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
- 37.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
- 38.⚖️ 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) True (b) False
- 39.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is what we measure. (a) False (b) True
- 40.🛟 Which of these sinks in water? (a) an empty capped bottle (b) a feather (c) a dry leaf (d) a glass marble
Answer key
- turmeric powder
- whether it floats
- lots of salt stirred in
- small test objects
- the big log
- floats
- not needed
- a towel for spills
- yeast
- needed
- needed
- False
- wipe up spills at once
- False
- True
- a tub of water
- we keep it the same
- False
- sinks
- it can float
- False
- floats
- we keep it the same
- False
- a magnet
- True
- False
- False
- False
- a battery cell
- True
- ice is less dense
- a mirror
- not needed
- a balloon
- we keep it the same
- False
- True
- False
- a glass marble
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