Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 670 · 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 results table for the float-or-sink test? (a) not needed (b) needed
2. 2.🔍 Which is the odd one out? (a) an ice cube (b) a glass marble (c) a feather (d) a ping-pong ball
3. 3.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
4. 4.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
5. 5.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it turns blue (c) it floats higher (d) it sinks
6. 6.⚖️ 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
7. 7.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it can float (c) it sinks faster (d) it dissolves
8. 8.⚖️ 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) True (b) False
9. 9.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a results table (c) a mirror (d) a tub of water
10. 10.⚖️ 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
11. 11.⚖️ 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 amount of clay (c) the kind of clay (d) the shape of the clay
12. 12.🧺 Do we need a balloon for the float-or-sink test? (a) not needed (b) needed
13. 13.🛟 Does a piece of thermocol float or sink in water? (a) floats (b) sinks
14. 14.🔍 You drop a coin into a tub of water. What do you see? (a) it dissolves (b) it floats (c) it sinks (d) it bounces up
15. 15.True or false: a coin sinks in water. (a) False (b) True
16. 16.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to hide the corks (c) to keep children safe (d) to splash everyone
17. 17.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
18. 18.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) wipe up spills at once (c) leave water on the floor (d) play near a deep pond
19. 19.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a balloon (c) a results table (d) a tub of water
20. 20.🛟 Does a cork float or sink in water? (a) floats (b) sinks
21. 21.True or false: an iron nail floats on water. (a) False (b) True
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 what we measure. (a) False (b) True
23. 23.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the kind of clay (b) the shape of the clay (c) whether it floats
24. 24.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) yeast (b) a tub of water (c) a towel for spills (d) a results table
25. 25.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
26. 26.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
27. 27.🛟 Which of these sinks in water? (a) a piece of thermocol (b) a ball of clay (c) an empty capped bottle (d) a ping-pong ball
28. 28.True or false: yeast is needed for the float-or-sink test. (a) True (b) False
29. 29.⚖️ 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
30. 30.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
31. 31.🛟 Which of these sinks in water? (a) a feather (b) an ice cube (c) a cork (d) a coin
32. 32.🔍 Which is the odd one out? (a) a coin (b) a steel spoon (c) a pebble (d) a piece of thermocol
33. 33.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is the one thing we change. (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 shape of the clay”? (a) we change it (b) we measure it (c) we keep it the same
35. 35.🛟 Which of these floats on water? (a) a ball of clay (b) a steel spoon (c) a cork (d) an iron nail
36. 36.🛟 Which of these sinks in water? (a) a metal key (b) a piece of thermocol (c) a feather (d) an ice cube
37. 37.True or false: a dry leaf sinks in water. (a) True (b) False
38. 38.⚖️ 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 keep it the same (c) we change it
39. 39.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) steel is very light (c) it has a magnet (d) sea water is warm
40. 40.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is kept the same. (a) False (b) True

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