Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 122 · 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 yeast for the float-or-sink test? (a) needed (b) not needed
2. 2.⚖️ 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
3. 3.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it sinks (c) it turns blue (d) it floats higher
4. 4.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
5. 5.🔍 Which is the odd one out? (a) an ice cube (b) a dry leaf (c) a pebble (d) an empty capped bottle
6. 6.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a towel for spills (c) a balloon (d) a results table
7. 7.True or false: a magnet is needed for the float-or-sink test. (a) False (b) True
8. 8.🥚 A fresh egg sinks in plain water. What makes it float? (a) lots of salt stirred in (b) more plain water (c) a little shaking (d) a few ice cubes
9. 9.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a balloon (c) a towel for spills (d) small test objects
10. 10.🧺 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) a tub of water (d) small test objects
11. 11.⚖️ 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
12. 12.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it dissolves (b) it can float (c) it sinks faster (d) it turns to stone
13. 13.True or false: a dry leaf sinks in water. (a) True (b) False
14. 14.True or false: a ping-pong ball sinks in water. (a) False (b) True
15. 15.True or false: a tub of water is not needed for the float-or-sink test. (a) False (b) True
16. 16.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) neither of them (c) the small pebble (d) the big log
17. 17.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the shape of the clay is the one thing we change. (a) True (b) False
18. 18.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) a towel for spills (c) yeast (d) a tub of water
19. 19.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a magnet (c) a tub of water (d) a results table
20. 20.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats
21. 21.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
22. 22.True or false: a coin floats on water. (a) True (b) False
23. 23.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a results table (c) yeast (d) small test objects
24. 24.⚖️ 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
25. 25.🛟 Which of these sinks in water? (a) an ice cube (b) a ball of clay (c) a dry leaf (d) a cork
26. 26.⚖️ 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) whether it floats (c) the amount of clay (d) the tub of water
27. 27.⚖️ 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 change it (b) we measure it (c) we keep it the same
28. 28.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) sea water is warm (c) steel is very light (d) its hollow shape
29. 29.🛟 Which of these floats on water? (a) a metal key (b) a coin (c) an ice-cream stick (d) a ball of clay
30. 30.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is the one thing we change. (a) False (b) True
31. 31.True or false: a ball of clay floats on water. (a) True (b) False
32. 32.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
33. 33.⚖️ 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
34. 34.🧺 Which of these is needed for the float-or-sink test? (a) a towel for spills (b) a mirror (c) turmeric powder (d) a magnet
35. 35.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
36. 36.⚖️ 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
37. 37.🌊 What pushes a floating cork upward? (a) the tub (b) the cork itself (c) the water (d) the air above
38. 38.🔍 Which is the odd one out? (a) a feather (b) an ice-cream stick (c) a cork (d) a metal key
39. 39.⚖️ 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
40. 40.🛟 Which is the safe way to do the float-or-sink test? (a) play near a deep pond (b) leave water on the floor (c) run around the tub (d) wipe up spills at once

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