Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 929 · 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 is needed for the float-or-sink test? (a) turmeric powder (b) a mirror (c) a balloon (d) small test objects
2. 2.True or false: a mirror is needed for the float-or-sink test. (a) False (b) True
3. 3.True or false: a pebble floats on water. (a) False (b) True
4. 4.🧊 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
5. 5.🛟 Which of these floats on water? (a) a steel spoon (b) a cork (c) a ball of clay (d) an iron nail
6. 6.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
7. 7.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to win a prize (c) to keep children safe (d) to splash everyone
8. 8.True or false: a results table is not needed for the float-or-sink test. (a) False (b) True
9. 9.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
10. 10.🧺 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 balloon
11. 11.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it dissolves (b) it sinks faster (c) it turns to stone (d) it can float
12. 12.⚖️ 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
13. 13.🚢 Why can a heavy steel ship float on the sea? (a) its hollow shape (b) it has a magnet (c) steel is very light (d) sea water is warm
14. 14.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) a few ice cubes (c) a little shaking (d) lots of salt stirred in
15. 15.⚖️ 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 tub of water (b) the shape of the clay (c) the amount of clay (d) the kind of clay
16. 16.🧺 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) yeast (d) a results table
17. 17.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a tub of water (c) a battery cell (d) a towel for spills
18. 18.🧺 Do we need a mirror for the float-or-sink test? (a) needed (b) not needed
19. 19.🌊 What pushes a floating cork upward? (a) the water (b) the cork itself (c) the tub (d) the air above
20. 20.🧺 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 mirror (d) a results table
21. 21.⚖️ 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
22. 22.⚖️ 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
23. 23.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) leave water on the floor (c) play near a deep pond (d) wipe up spills at once
24. 24.🧺 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) a mirror
25. 25.True or false: a balloon is needed for the float-or-sink test. (a) False (b) True
26. 26.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a feather (c) a ball of clay (d) an ice cube
27. 27.⚖️ 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 measure it (b) we keep it the same (c) we change it
28. 28.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it sinks (c) it melts (d) it turns blue
29. 29.⚖️ 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 measure it (b) we change it (c) we keep it the same
30. 30.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) neither of them (c) the big log (d) both of them
31. 31.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
32. 32.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a magnet (b) a results table (c) a towel for spills (d) small test objects
33. 33.🔍 Which is the odd one out? (a) an ice cube (b) a steel spoon (c) a ping-pong ball (d) a feather
34. 34.🧺 Do we need a towel for spills for the float-or-sink test? (a) needed (b) not needed
35. 35.🛟 Does a feather float or sink in water? (a) sinks (b) floats
36. 36.🧺 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 results table (d) turmeric powder
37. 37.🛟 Does an empty capped bottle float or sink in water? (a) floats (b) sinks
38. 38.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it dissolves (c) it turns white (d) it still floats
39. 39.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is what we measure. (a) True (b) False
40. 40.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is the one thing we change. (a) False (b) True

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