Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 519 · 40 questions

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.

1. 1.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the shape of the clay”? (a) we measure it (b) we keep it the same (c) we change it
2. 2.⚖️ 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) the kind of clay (c) the amount of clay (d) the shape of the clay
3. 3.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a results table (c) a balloon (d) small test objects
4. 4.True or false: a results table is not needed for the float-or-sink test. (a) False (b) True
5. 5.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
6. 6.🛟 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 hide the corks (d) to keep children safe
7. 7.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
8. 8.🛟 Does a pebble float or sink in water? (a) sinks (b) floats
9. 9.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it floats higher (c) it turns blue (d) it sinks
10. 10.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a results table (c) yeast (d) small test objects
11. 11.True or false: yeast is not needed for the float-or-sink test. (a) False (b) True
12. 12.🛟 Does a cork float or sink in water? (a) sinks (b) floats
13. 13.🔮 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
14. 14.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
15. 15.🧊 Why does an ice cube float on water? (a) ice is very cold (b) ice is magnetic (c) water is sticky (d) ice is less dense
16. 16.True or false: a cork floats on water. (a) False (b) True
17. 17.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it still floats (c) it dissolves (d) it turns white
18. 18.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
19. 19.True or false: an iron nail sinks in water. (a) True (b) False
20. 20.True or false: a towel for spills is needed for the float-or-sink test. (a) True (b) False
21. 21.🛟 Which of these floats on water? (a) a ping-pong ball (b) a glass marble (c) a coin (d) a pebble
22. 22.True or false: a ping-pong ball sinks in water. (a) False (b) True
23. 23.⚖️ 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
24. 24.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) small test objects (c) turmeric powder (d) a results table
25. 25.⚖️ 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
26. 26.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
27. 27.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the amount of clay (b) whether it floats (c) the kind of clay (d) the tub of water
28. 28.⚖️ 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 keep it the same (c) we change it
29. 29.True or false: an empty capped bottle sinks in water. (a) False (b) True
30. 30.🔍 Which is the odd one out? (a) a ball of clay (b) a steel spoon (c) a metal key (d) a feather
31. 31.⚖️ 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
32. 32.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) steel is very light (c) its hollow shape (d) it has a magnet
33. 33.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is what we measure. (a) False (b) True
34. 34.⚖️ 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
35. 35.🌊 What pushes a floating cork upward? (a) the water (b) the air above (c) the tub (d) the cork itself
36. 36.🛟 Which of these floats on water? (a) a feather (b) an iron nail (c) a glass marble (d) a coin
37. 37.🔍 Which is the odd one out? (a) an empty capped bottle (b) a dry leaf (c) a feather (d) a metal key
38. 38.🔍 Which is the odd one out? (a) an ice cube (b) a steel spoon (c) a coin (d) a glass marble
39. 39.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a tub of water (c) a results table (d) a magnet
40. 40.True or false: small test objects is needed for the float-or-sink test. (a) False (b) True

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