Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 167 · 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.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a towel for spills (c) a balloon (d) small test objects
2. 2.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) small test objects (c) a balloon (d) a battery cell
3. 3.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) neither of them (c) the big log (d) both of them
4. 4.🔍 Which is the odd one out? (a) an ice cube (b) a cork (c) a dry leaf (d) a steel spoon
5. 5.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to keep children safe (c) to hide the corks (d) to win a prize
6. 6.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it melts (c) it sinks (d) it floats higher
7. 7.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
8. 8.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
9. 9.True or false: a cork sinks in water. (a) False (b) True
10. 10.⚖️ 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
11. 11.🔍 Which is the odd one out? (a) a ping-pong ball (b) a glass marble (c) an ice cube (d) a feather
12. 12.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a results table (c) a towel for spills (d) a battery cell
13. 13.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we measure it (b) we keep it the same (c) we change it
14. 14.⚖️ 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
15. 15.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
16. 16.🛟 Which of these floats on water? (a) a coin (b) a steel spoon (c) a ball of clay (d) an ice cube
17. 17.🔍 Which is the odd one out? (a) a pebble (b) an empty capped bottle (c) a steel spoon (d) a coin
18. 18.⚖️ 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) the amount of clay (c) whether it floats
19. 19.🔍 Which is the odd one out? (a) a metal key (b) a coin (c) a pebble (d) an ice-cream stick
20. 20.⚖️ 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
21. 21.True or false: a battery cell is needed for the float-or-sink test. (a) True (b) False
22. 22.True or false: a magnet is not needed for the float-or-sink test. (a) True (b) False
23. 23.🛟 Does a piece of thermocol float or sink in water? (a) sinks (b) floats
24. 24.🧺 Which of these is needed for the float-or-sink test? (a) a results table (b) a magnet (c) a balloon (d) a mirror
25. 25.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
26. 26.🧺 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) small test objects (d) a magnet
27. 27.⚖️ 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 change it (b) we keep it the same (c) we measure it
28. 28.🧊 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
29. 29.True or false: yeast is not needed for the float-or-sink test. (a) False (b) True
30. 30.True or false: a balloon is needed for the float-or-sink test. (a) False (b) True
31. 31.True or false: an ice cube floats on water. (a) False (b) True
32. 32.🔍 Which is the odd one out? (a) a coin (b) a feather (c) a dry leaf (d) an empty capped bottle
33. 33.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it sinks (c) it turns white (d) it dissolves
34. 34.⚖️ 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 kind of clay
35. 35.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) wipe up spills at once (c) leave water on the floor (d) run around the tub
36. 36.🔍 Which is the odd one out? (a) a cork (b) a feather (c) a dry leaf (d) an iron nail
37. 37.True or false: a coin sinks in water. (a) False (b) True
38. 38.True or false: a results table is needed for the float-or-sink test. (a) False (b) True
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 turns to stone (d) it can float
40. 40.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True

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