Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 509 · 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.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
2. 2.⚖️ 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
3. 3.🛟 Which of these floats on water? (a) an iron nail (b) a coin (c) an ice-cream stick (d) a pebble
4. 4.🧊 Why does an ice cube float on water? (a) ice is very cold (b) water is sticky (c) ice is less dense (d) ice is magnetic
5. 5.🔍 Which is the odd one out? (a) a ping-pong ball (b) a coin (c) a cork (d) an ice cube
6. 6.🧺 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) small test objects (d) a battery cell
7. 7.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) its hollow shape (c) sea water is warm (d) steel is very light
8. 8.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
9. 9.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) the big log (c) neither of them (d) the small pebble
10. 10.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
11. 11.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats
12. 12.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the kind of clay (b) the shape of the clay (c) whether it floats (d) the tub of water
13. 13.🔍 Which is the odd one out? (a) a cork (b) an ice cube (c) an iron nail (d) a piece of thermocol
14. 14.⚖️ 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) False (b) True
15. 15.⚖️ 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 shape of the clay (b) the tub of water (c) the kind of clay (d) whether it floats
16. 16.🛟 Which of these floats on water? (a) a glass marble (b) a pebble (c) a coin (d) a cork
17. 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. 18.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
19. 19.True or false: a magnet is needed for the float-or-sink test. (a) True (b) False
20. 20.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) yeast (b) a towel for spills (c) small test objects (d) a tub of water
21. 21.🛟 Does a feather float or sink in water? (a) sinks (b) floats
22. 22.True or false: a pebble sinks in water. (a) True (b) False
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 kept the same. (a) False (b) True
24. 24.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) run around the tub (c) leave water on the floor (d) play near a deep pond
25. 25.True or false: a tub of water is not needed for the float-or-sink test. (a) False (b) True
26. 26.True or false: a mirror is needed for the float-or-sink test. (a) True (b) False
27. 27.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it turns blue (c) it melts (d) it sinks
28. 28.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a results table (c) small test objects (d) a mirror
29. 29.True or false: a results table is not needed for the float-or-sink test. (a) True (b) False
30. 30.⚖️ 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
31. 31.🔍 Which is the odd one out? (a) a glass marble (b) an empty capped bottle (c) a cork (d) a ping-pong ball
32. 32.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is the one thing we change. (a) True (b) False
33. 33.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it turns to stone (c) it can float (d) it dissolves
34. 34.🔍 Which is the odd one out? (a) a dry leaf (b) an empty capped bottle (c) a steel spoon (d) an ice-cream stick
35. 35.True or false: a ping-pong ball sinks in water. (a) False (b) True
36. 36.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the amount of clay (b) whether it floats (c) the shape of the clay
37. 37.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a tub of water (c) a battery cell (d) a results table
38. 38.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the shape of the clay (b) whether it floats (c) the tub of water
39. 39.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a battery cell (c) small test objects (d) turmeric powder
40. 40.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed

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