Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 859 · 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.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a battery cell (c) a towel for spills (d) a results table
2. 2.🧺 Which of these is needed for the float-or-sink test? (a) a towel for spills (b) a mirror (c) a magnet (d) turmeric powder
3. 3.🥚 A fresh egg sinks in plain water. What makes it float? (a) a little shaking (b) lots of salt stirred in (c) more plain water (d) a few ice cubes
4. 4.True or false: an iron nail sinks in water. (a) True (b) False
5. 5.🛟 Does a glass marble float or sink in water? (a) floats (b) sinks
6. 6.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it turns blue (c) it sinks (d) it floats higher
7. 7.⚖️ 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) whether it floats (c) the tub of water (d) the kind of clay
8. 8.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it can float (c) it sinks faster (d) it dissolves
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 amount of clay (b) the shape of the clay (c) the tub of water (d) whether it floats
10. 10.🛟 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 keep children safe (d) to win a prize
11. 11.🛟 Which of these sinks in water? (a) a dry leaf (b) an ice-cream stick (c) a cork (d) an iron nail
12. 12.True or false: a steel spoon floats on water. (a) False (b) True
13. 13.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) leave water on the floor (c) play near a deep pond (d) run around the tub
14. 14.True or false: a ball of clay floats on 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.⚖️ 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.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) both of them (c) neither of them (d) the big log
18. 18.True or false: small test objects is not needed for the float-or-sink test. (a) True (b) False
19. 19.🔍 You drop a coin into a tub of water. What do you see? (a) it dissolves (b) it bounces up (c) it sinks (d) it floats
20. 20.🛟 Which of these floats on water? (a) a feather (b) a pebble (c) a steel spoon (d) a ball of clay
21. 21.⚖️ 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) True (b) False
22. 22.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it turns white (c) it sinks (d) it dissolves
23. 23.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
24. 24.🔍 Which is the odd one out? (a) a steel spoon (b) a ping-pong ball (c) a metal key (d) a pebble
25. 25.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
26. 26.🛟 Does a feather float or sink in water? (a) floats (b) sinks
27. 27.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a results table (c) a tub of water (d) a magnet
28. 28.🛟 Does a metal key float or sink in water? (a) sinks (b) floats
29. 29.⚖️ 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 kind of clay
30. 30.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we change it (b) we keep it the same (c) we measure it
31. 31.True or false: a results table is needed for the float-or-sink test. (a) True (b) False
32. 32.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is what we measure. (a) False (b) True
33. 33.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a magnet (c) a results table (d) a balloon
34. 34.🛟 Which of these sinks in water? (a) a piece of thermocol (b) an ice cube (c) a metal key (d) a ping-pong ball
35. 35.🛟 Which of these floats on water? (a) a pebble (b) a coin (c) an iron nail (d) an empty capped bottle
36. 36.True or false: a magnet is needed for the float-or-sink test. (a) True (b) False
37. 37.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) small test objects (c) a tub of water (d) a balloon
38. 38.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats
39. 39.⚖️ 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
40. 40.True or false: a towel for spills is not needed for the float-or-sink test. (a) True (b) False

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