Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 646 · 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) needed (b) not needed
2. 2.True or false: a ball of clay sinks in water. (a) False (b) True
3. 3.🔮 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
4. 4.True or false: an iron nail floats on water. (a) False (b) True
5. 5.True or false: a piece of thermocol floats on water. (a) True (b) False
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 measure it (b) we keep it the same (c) we change it
7. 7.🛟 Which of these sinks in water? (a) a feather (b) a glass marble (c) a cork (d) an ice cube
8. 8.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it dissolves (c) it floats (d) it sinks
9. 9.🧺 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 tub of water (d) a magnet
10. 10.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
11. 11.🛟 Does an empty capped bottle float or sink in water? (a) sinks (b) floats
12. 12.🛟 Which of these floats on water? (a) a metal key (b) a glass marble (c) a pebble (d) a ping-pong ball
13. 13.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to splash everyone (c) to win a prize (d) to keep children safe
14. 14.True or false: a battery cell is not needed for the float-or-sink test. (a) False (b) True
15. 15.🛟 Which of these floats on water? (a) a glass marble (b) a feather (c) a metal key (d) a pebble
16. 16.⚖️ 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 keep it the same (b) we measure it (c) we change it
17. 17.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is the one thing we change? (a) whether it floats (b) the kind of clay (c) the shape of the clay (d) the amount of clay
18. 18.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
19. 19.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a magnet (c) a results table (d) small test objects
20. 20.🛟 Does a steel spoon float or sink in water? (a) floats (b) sinks
21. 21.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
22. 22.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) yeast (c) a tub of water (d) a towel for spills
23. 23.🔍 Which is the odd one out? (a) a piece of thermocol (b) an iron nail (c) an empty capped bottle (d) a ping-pong ball
24. 24.🛟 Does a coin float or sink in water? (a) floats (b) sinks
25. 25.True or false: a piece of thermocol sinks in water. (a) True (b) False
26. 26.⚖️ 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 keep it the same (b) we measure it (c) we change it
27. 27.⚖️ 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) False (b) True
28. 28.🛟 Does a pebble float or sink in water? (a) floats (b) sinks
29. 29.🧺 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 towel for spills (d) yeast
30. 30.True or false: a towel for spills is not needed for the float-or-sink test. (a) True (b) False
31. 31.🧺 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) turmeric powder (d) a tub of water
32. 32.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a mirror (c) small test objects (d) a tub of water
33. 33.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it turns white (c) it dissolves (d) it still floats
34. 34.🛟 Which of these floats on water? (a) a glass marble (b) a ball of clay (c) a dry leaf (d) a steel spoon
35. 35.🛟 Does a cork float or sink in water? (a) sinks (b) floats
36. 36.True or false: a ping-pong ball floats on water. (a) True (b) False
37. 37.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we change it (b) we keep it the same (c) we measure it
38. 38.True or false: a mirror is not needed for the float-or-sink test. (a) True (b) False
39. 39.⚖️ 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
40. 40.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a battery cell (c) small test objects (d) a tub of water

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