Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 271 · 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.🛟 Does a steel spoon float or sink in water? (a) sinks (b) floats
2. 2.⚖️ 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 tub of water (c) the kind of clay (d) the amount of clay
3. 3.🧺 Which of these is not needed for the float-or-sink test? (a) a balloon (b) small test objects (c) a towel for spills (d) a tub of water
4. 4.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
5. 5.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
6. 6.🔍 Which is the odd one out? (a) an ice-cream stick (b) a piece of thermocol (c) a ping-pong ball (d) a ball of clay
7. 7.⚖️ 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) whether it floats (c) the shape of the clay
8. 8.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
9. 9.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) a tub of water (c) a battery cell (d) a mirror
10. 10.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a towel for spills (c) a balloon (d) a battery cell
11. 11.🧺 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) a towel for spills
12. 12.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
13. 13.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it sinks faster (b) it can float (c) it turns to stone (d) it dissolves
14. 14.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to win a prize (c) to splash everyone (d) to keep children safe
15. 15.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) small test objects (c) a results table (d) a balloon
16. 16.🧺 Which of these is needed for the float-or-sink test? (a) a balloon (b) yeast (c) turmeric powder (d) small test objects
17. 17.⚖️ 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) whether it floats (c) the amount of clay
18. 18.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we keep it the same (b) we measure it (c) we change it
19. 19.True or false: small test objects is not needed for the float-or-sink test. (a) False (b) True
20. 20.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is very cold (c) ice is less dense (d) ice is magnetic
21. 21.🔮 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
22. 22.🛟 Which of these sinks in water? (a) a ping-pong ball (b) a coin (c) an empty capped bottle (d) a feather
23. 23.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it floats (c) it dissolves (d) it bounces up
24. 24.⚖️ 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
25. 25.True or false: a battery cell is needed for the float-or-sink test. (a) True (b) False
26. 26.🛟 Which of these sinks in water? (a) a cork (b) a steel spoon (c) a dry leaf (d) an empty capped bottle
27. 27.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a magnet (b) small test objects (c) a results table (d) a towel for spills
28. 28.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) play near a deep pond (c) leave water on the floor (d) wipe up spills at once
29. 29.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True
30. 30.🛟 Does a pebble float or sink in water? (a) sinks (b) floats
31. 31.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) yeast (c) small test objects (d) a results table
32. 32.🛟 Which of these floats on water? (a) an iron nail (b) an ice-cream stick (c) a pebble (d) a steel spoon
33. 33.🛟 Which of these floats on water? (a) a ball of clay (b) a coin (c) an ice cube (d) a metal key
34. 34.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the kind of clay (b) the tub of water (c) whether it floats (d) the amount of clay
35. 35.True or false: a mirror is not needed for the float-or-sink test. (a) True (b) False
36. 36.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) lots of salt stirred in (c) a little shaking (d) a few ice cubes
37. 37.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
38. 38.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it dissolves (c) it turns white (d) it still floats
39. 39.⚖️ 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) False (b) True
40. 40.⚖️ 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 change it (b) we measure it (c) we keep it the same

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