Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 877 · 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.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it melts (c) it turns blue (d) it floats higher
2. 2.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
3. 3.🔍 Which is the odd one out? (a) an ice-cream stick (b) a feather (c) an ice cube (d) a steel spoon
4. 4.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a battery cell (c) small test objects (d) a mirror
5. 5.🛟 Which of these sinks in water? (a) a coin (b) a feather (c) an ice-cream stick (d) an ice cube
6. 6.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a battery cell (b) a tub of water (c) small test objects (d) a towel for spills
7. 7.⚖️ 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
8. 8.⚖️ 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 amount of clay (c) the kind of clay (d) the tub of water
9. 9.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is what we measure. (a) True (b) False
10. 10.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
11. 11.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to hide the corks (c) to win a prize (d) to keep children safe
12. 12.⚖️ 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
13. 13.🔍 Which is the odd one out? (a) a metal key (b) an iron nail (c) a coin (d) a ping-pong ball
14. 14.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the big log (b) the small pebble (c) neither of them (d) both of them
15. 15.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
16. 16.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) run around the tub (c) wipe up spills at once (d) leave water on the floor
17. 17.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it still floats (c) it turns white (d) it sinks
18. 18.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) whether it floats (b) the tub of water (c) the amount of clay (d) the shape of the clay
19. 19.True or false: a ping-pong ball sinks in water. (a) False (b) True
20. 20.🧺 Which of these is not needed for the float-or-sink test? (a) a magnet (b) a tub of water (c) a results table (d) a towel for spills
21. 21.🛟 Which of these sinks in water? (a) an empty capped bottle (b) a dry leaf (c) a steel spoon (d) a piece of thermocol
22. 22.🛟 Does a steel spoon float or sink in water? (a) sinks (b) floats
23. 23.🔍 Which is the odd one out? (a) a glass marble (b) a coin (c) an ice-cream stick (d) a steel spoon
24. 24.True or false: a battery cell is not needed for the float-or-sink test. (a) True (b) False
25. 25.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) a little shaking (c) a few ice cubes (d) lots of salt stirred in
26. 26.🌊 What pushes a floating cork upward? (a) the water (b) the tub (c) the air above (d) the cork itself
27. 27.⚖️ 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 change it (c) we keep it the same
28. 28.True or false: yeast is not needed for the float-or-sink test. (a) True (b) False
29. 29.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a mirror (b) a tub of water (c) small test objects (d) a towel for spills
30. 30.🧊 Why does an ice cube float on water? (a) ice is very cold (b) ice is less dense (c) water is sticky (d) ice is magnetic
31. 31.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
32. 32.⚖️ 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 tub of water (c) whether it floats
33. 33.True or false: yeast is needed for the float-or-sink test. (a) False (b) True
34. 34.⚖️ 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
35. 35.⚖️ 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 amount of clay (c) the shape of the clay
36. 36.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
37. 37.⚖️ 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) True (b) False
38. 38.True or false: a battery cell is needed for the float-or-sink test. (a) True (b) False
39. 39.🛟 Which of these floats on water? (a) an iron nail (b) a coin (c) a glass marble (d) an ice cube
40. 40.True or false: a metal key sinks in water. (a) False (b) True

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