Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 491 · 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.True or false: a tub of water is not needed for the float-or-sink test. (a) True (b) False
2. 2.🛟 Which of these sinks in water? (a) a ball of clay (b) an ice cube (c) a feather (d) a piece of thermocol
3. 3.🛟 Does an empty capped bottle float or sink in water? (a) floats (b) sinks
4. 4.🛟 Which of these sinks in water? (a) an ice cube (b) a cork (c) a metal key (d) a dry leaf
5. 5.🧺 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) yeast (d) a tub of water
6. 6.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) wipe up spills at once (c) leave water on the floor (d) play near a deep pond
7. 7.True or false: a ping-pong ball sinks in water. (a) True (b) False
8. 8.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
9. 9.True or false: small test objects is needed for the float-or-sink test. (a) True (b) False
10. 10.⚖️ 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) the kind of clay (c) whether it floats (d) the amount of clay
11. 11.🛟 Which of these sinks in water? (a) a coin (b) a piece of thermocol (c) a ping-pong ball (d) an empty capped bottle
12. 12.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it bounces up (c) it dissolves (d) it sinks
13. 13.🥚 A fresh egg sinks in plain water. What makes it float? (a) lots of salt stirred in (b) a few ice cubes (c) a little shaking (d) more plain water
14. 14.⚖️ 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
15. 15.⚖️ 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
16. 16.🧺 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) small test objects (d) a mirror
17. 17.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a tub of water (c) a towel for spills (d) a balloon
18. 18.🛟 Does a feather float or sink in water? (a) floats (b) sinks
19. 19.🔮 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
20. 20.⚖️ 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
21. 21.🛟 Does an ice-cream stick float or sink in water? (a) sinks (b) floats
22. 22.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) small test objects (c) a balloon (d) a tub of water
23. 23.🔍 Which is the odd one out? (a) a cork (b) a ping-pong ball (c) a metal key (d) an empty capped bottle
24. 24.True or false: a dry leaf floats on water. (a) False (b) True
25. 25.🧺 Which of these is needed for the float-or-sink test? (a) a towel for spills (b) a battery cell (c) yeast (d) a magnet
26. 26.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
27. 27.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to splash everyone (b) to win a prize (c) to hide the corks (d) to keep children safe
28. 28.True or false: a balloon is not needed for the float-or-sink test. (a) False (b) True
29. 29.🛟 Does an iron nail float or sink in water? (a) sinks (b) floats
30. 30.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
31. 31.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the tub of water (b) whether it floats (c) the shape of the clay
32. 32.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it melts (c) it turns blue (d) it sinks
33. 33.⚖️ 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
34. 34.🧺 Do we need yeast for the float-or-sink test? (a) not needed (b) needed
35. 35.🔍 Which is the odd one out? (a) a feather (b) a ping-pong ball (c) a piece of thermocol (d) a coin
36. 36.🔮 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
37. 37.True or false: an ice-cream stick floats on water. (a) True (b) False
38. 38.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
39. 39.🔍 Which is the odd one out? (a) a glass marble (b) a pebble (c) a ball of clay (d) a dry leaf
40. 40.🔍 Which is the odd one out? (a) a ping-pong ball (b) an iron nail (c) a cork (d) an ice cube

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