Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 253 · 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.🛟 Which of these floats on water? (a) a pebble (b) an iron nail (c) a coin (d) a feather
2. 2.True or false: a battery cell is needed for the float-or-sink test. (a) False (b) True
3. 3.🛟 Which is the safe way to do the float-or-sink test? (a) leave water on the floor (b) play near a deep pond (c) wipe up spills at once (d) run around the tub
4. 4.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it sinks faster (c) it turns to stone (d) it dissolves
5. 5.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
6. 6.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
7. 7.🛟 Which of these sinks in water? (a) a piece of thermocol (b) an ice cube (c) a dry leaf (d) an iron nail
8. 8.🧺 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 balloon (d) a towel for spills
9. 9.🛟 Which of these floats on water? (a) a steel spoon (b) a metal key (c) a ping-pong ball (d) a coin
10. 10.⚖️ 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
11. 11.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is the one thing we change. (a) True (b) False
12. 12.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a balloon (c) a battery cell (d) a results table
13. 13.⚖️ 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 measure it (b) we change it (c) we keep it the same
14. 14.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) turmeric powder (c) a results table (d) a tub of water
15. 15.⚖️ 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
16. 16.True or false: a tub of water is not needed for the float-or-sink test. (a) False (b) True
17. 17.True or false: an ice cube sinks in water. (a) True (b) False
18. 18.⚖️ 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 change it (b) we measure it (c) we keep it the same
19. 19.🌊 What pushes a floating cork upward? (a) the cork itself (b) the air above (c) the water (d) the tub
20. 20.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a tub of water (c) yeast (d) a balloon
21. 21.🧺 Which of these is needed for the float-or-sink test? (a) small test objects (b) turmeric powder (c) a mirror (d) a balloon
22. 22.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a towel for spills (c) a results table (d) a mirror
23. 23.⚖️ 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
24. 24.🛟 Does an empty capped bottle float or sink in water? (a) sinks (b) floats
25. 25.⚖️ 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 shape of the clay
26. 26.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a dry leaf (c) an ice cube (d) a ball of clay
27. 27.🛟 Does a steel spoon float or sink in water? (a) sinks (b) floats
28. 28.True or false: small test objects is needed for the float-or-sink test. (a) False (b) True
29. 29.🔍 Which is the odd one out? (a) a feather (b) a cork (c) a ping-pong ball (d) a pebble
30. 30.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
31. 31.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) lots of salt stirred in (c) more plain water (d) a little shaking
32. 32.🔍 Which is the odd one out? (a) a metal key (b) a pebble (c) a steel spoon (d) a feather
33. 33.🧺 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) a tub of water (d) yeast
34. 34.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it melts (c) it floats higher (d) it turns blue
35. 35.🔍 Which is the odd one out? (a) an ice cube (b) a coin (c) a steel spoon (d) an iron nail
36. 36.🧺 Do we need small test objects for the float-or-sink test? (a) needed (b) not needed
37. 37.True or false: an ice-cream stick sinks in water. (a) False (b) True
38. 38.⚖️ 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 tub of water (d) the amount of clay
39. 39.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to keep children safe (c) to hide the corks (d) to splash everyone
40. 40.🔍 Which is the odd one out? (a) a piece of thermocol (b) a pebble (c) a metal key (d) a coin

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