Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 179 · 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 floats higher (c) it melts (d) it turns blue
2. 2.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
3. 3.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a mirror (c) a results table (d) turmeric powder
4. 4.⚖️ 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 keep it the same (b) we change it (c) we measure it
5. 5.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
6. 6.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) sea water is warm (c) its hollow shape (d) it has a magnet
7. 7.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
8. 8.🛟 Which of these sinks in water? (a) a feather (b) an ice-cream stick (c) a piece of thermocol (d) a metal key
9. 9.🔍 Which is the odd one out? (a) a ball of clay (b) an iron nail (c) a pebble (d) a cork
10. 10.⚖️ 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
11. 11.🧺 Which of these is not needed for the float-or-sink test? (a) turmeric powder (b) small test objects (c) a tub of water (d) a results table
12. 12.⚖️ 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 shape of the clay (c) the tub of water
13. 13.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
14. 14.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is very cold (c) ice is magnetic (d) ice is less dense
15. 15.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True
16. 16.⚖️ 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) False (b) True
17. 17.True or false: a ping-pong ball floats on water. (a) True (b) False
18. 18.🛟 Which of these sinks in water? (a) a dry leaf (b) a feather (c) a pebble (d) an ice cube
19. 19.⚖️ 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) True (b) False
20. 20.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it turns white (c) it still floats (d) it dissolves
21. 21.🧺 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 battery cell
22. 22.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to hide the corks (c) to win a prize (d) to splash everyone
23. 23.True or false: an ice cube sinks in water. (a) True (b) False
24. 24.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) small test objects (c) a balloon (d) a towel for spills
25. 25.🥚 A fresh egg sinks in plain water. What makes it float? (a) lots of salt stirred in (b) a little shaking (c) more plain water (d) a few ice cubes
26. 26.🛟 Which of these floats on water? (a) a metal key (b) a ball of clay (c) a dry leaf (d) an iron nail
27. 27.True or false: turmeric powder is needed for the float-or-sink test. (a) True (b) False
28. 28.True or false: a piece of thermocol sinks in water. (a) False (b) True
29. 29.🔍 Which is the odd one out? (a) a ball of clay (b) an iron nail (c) an ice cube (d) a pebble
30. 30.⚖️ 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 amount of clay (b) the shape of the clay (c) whether it floats (d) the kind of clay
31. 31.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) yeast (b) small test objects (c) a tub of water (d) a towel for spills
32. 32.🔍 Which is the odd one out? (a) a piece of thermocol (b) a cork (c) a coin (d) a feather
33. 33.🔍 Which is the odd one out? (a) a ball of clay (b) a coin (c) an empty capped bottle (d) a glass marble
34. 34.⚖️ 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) False (b) True
35. 35.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we measure it (b) we change it (c) we keep it the same
36. 36.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a towel for spills (c) a tub of water (d) a mirror
37. 37.True or false: yeast is needed for the float-or-sink test. (a) False (b) True
38. 38.⚖️ 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
39. 39.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed
40. 40.🛟 Does a metal key float or sink in water? (a) floats (b) sinks

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