Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 273 · 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.⚖️ 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 kind of clay (b) the tub of water (c) the amount of clay (d) the shape of the clay
2. 2.🛟 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) run around the tub (d) play near a deep pond
3. 3.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) turmeric powder (b) small test objects (c) a tub of water (d) a towel for spills
4. 4.🛟 Does an empty capped bottle float or sink in water? (a) sinks (b) floats
5. 5.🔮 A big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) both of them (c) the small pebble (d) the big log
6. 6.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it turns to stone (b) it dissolves (c) it sinks faster (d) it can float
7. 7.True or false: a piece of thermocol sinks in water. (a) False (b) True
8. 8.⚖️ 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) True (b) False
9. 9.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) sea water is warm (c) its hollow shape (d) steel is very light
10. 10.🔍 Which is the odd one out? (a) a ball of clay (b) a ping-pong ball (c) a coin (d) a glass marble
11. 11.🧺 Which of these is not needed for the float-or-sink test? (a) a balloon (b) small test objects (c) a tub of water (d) a towel for spills
12. 12.🧊 Why does an ice cube float on water? (a) ice is very cold (b) water is sticky (c) ice is magnetic (d) ice is less dense
13. 13.🛟 Which of these floats on water? (a) a cork (b) a coin (c) a ball of clay (d) a pebble
14. 14.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a results table (c) a mirror (d) small test objects
15. 15.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) yeast (c) small test objects (d) a mirror
16. 16.🥚 A fresh egg sinks in plain water. What makes it float? (a) a little shaking (b) a few ice cubes (c) lots of salt stirred in (d) more plain water
17. 17.🌊 What pushes a floating cork upward? (a) the air above (b) the water (c) the tub (d) the cork itself
18. 18.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a balloon (c) a towel for spills (d) a battery cell
19. 19.🧺 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 results table (d) a balloon
20. 20.⚖️ 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
21. 21.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it still floats (c) it turns white (d) it dissolves
22. 22.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) whether it floats (b) the tub of water (c) the shape of the clay (d) the kind of clay
23. 23.⚖️ 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
24. 24.🛟 Which of these sinks in water? (a) a cork (b) an ice-cream stick (c) a feather (d) a pebble
25. 25.🛟 Does a glass marble float or sink in water? (a) floats (b) sinks
26. 26.🛟 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
27. 27.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a results table (c) a battery cell (d) a magnet
28. 28.True or false: a mirror is needed for the float-or-sink test. (a) True (b) False
29. 29.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is the one thing we change. (a) True (b) False
30. 30.True or false: a balloon is not needed for the float-or-sink test. (a) False (b) True
31. 31.🛟 Does an ice-cream stick float or sink in water? (a) floats (b) sinks
32. 32.🧺 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) a battery cell (d) a towel for spills
33. 33.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
34. 34.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
35. 35.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
36. 36.⚖️ 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
37. 37.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a tub of water (c) a results table (d) turmeric powder
38. 38.🧺 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 results table
39. 39.True or false: small test objects is not needed for the float-or-sink test. (a) False (b) True
40. 40.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it sinks (b) it floats higher (c) it turns blue (d) it melts

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