Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 908 · 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.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) more plain water (c) lots of salt stirred in (d) a little shaking
2. 2.🔍 Which is the odd one out? (a) a ping-pong ball (b) a pebble (c) a piece of thermocol (d) a dry leaf
3. 3.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) small test objects (c) a towel for spills (d) a balloon
4. 4.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True
5. 5.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
6. 6.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the shape of the clay (b) the kind of clay (c) whether it floats (d) the tub of water
7. 7.🛟 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
8. 8.🔍 Which is the odd one out? (a) an iron nail (b) a dry leaf (c) a ball of clay (d) a metal key
9. 9.⚖️ 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 kind of clay (c) the shape of the clay (d) whether it floats
10. 10.🧺 Do we need a battery cell for the float-or-sink test? (a) needed (b) not needed
11. 11.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
12. 12.⚖️ 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
13. 13.🛟 Does a dry leaf float or sink in water? (a) floats (b) sinks
14. 14.True or false: yeast is not needed for the float-or-sink test. (a) False (b) True
15. 15.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) small test objects (c) a mirror (d) a tub of water
16. 16.⚖️ 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 tub of water (c) the shape of the clay
17. 17.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a dry leaf (c) a glass marble (d) an empty capped bottle
18. 18.⚖️ 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 kind of clay (c) the shape of the clay
19. 19.🛟 Which of these floats on water? (a) a steel spoon (b) an empty capped bottle (c) a ball of clay (d) an iron nail
20. 20.🧊 Why does an ice cube float on water? (a) ice is very cold (b) water is sticky (c) ice is magnetic (d) ice is less dense
21. 21.⚖️ 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 keep it the same (b) we change it (c) we measure it
22. 22.True or false: a pebble floats on water. (a) True (b) False
23. 23.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is the one thing we change. (a) True (b) False
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 results table (d) small test objects
25. 25.🛟 Does a feather float or sink in water? (a) sinks (b) floats
26. 26.🔍 Which is the odd one out? (a) a coin (b) a ball of clay (c) a cork (d) a glass marble
27. 27.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
28. 28.🛟 Does an empty capped bottle float or sink in water? (a) floats (b) sinks
29. 29.🔍 Which is the odd one out? (a) a dry leaf (b) an ice cube (c) a ball of clay (d) a cork
30. 30.🔍 Which is the odd one out? (a) a ball of clay (b) a coin (c) a metal key (d) an ice cube
31. 31.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
32. 32.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) turmeric powder (c) small test objects (d) a towel for spills
33. 33.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it bounces up (c) it sinks (d) it dissolves
34. 34.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a magnet (b) a tub of water (c) a results table (d) a towel for spills
35. 35.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a magnet (c) a battery cell (d) a results table
36. 36.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it floats higher (c) it melts (d) it sinks
37. 37.🛟 Does a ping-pong ball float or sink in water? (a) floats (b) sinks
38. 38.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is what we measure. (a) False (b) True
39. 39.🔍 Which is the odd one out? (a) a ball of clay (b) an iron nail (c) a glass marble (d) a feather
40. 40.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed

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