Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 813 · 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.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it can float (b) it sinks faster (c) it dissolves (d) it turns to stone
2. 2.🚢 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
3. 3.🛟 Which of these floats on water? (a) a pebble (b) a coin (c) an iron nail (d) a feather
4. 4.🌊 What pushes a floating cork upward? (a) the air above (b) the cork itself (c) the water (d) the tub
5. 5.True or false: a magnet is not needed for the float-or-sink test. (a) False (b) True
6. 6.🛟 Which of these sinks in water? (a) a feather (b) a cork (c) a ping-pong ball (d) a ball of clay
7. 7.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “the tub of water”? (a) we keep it the same (b) we change it (c) we measure it
8. 8.⚖️ 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
9. 9.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it bounces up (c) it dissolves (d) it floats
10. 10.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) water is sticky (c) ice is very cold (d) ice is less dense
11. 11.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True
12. 12.🔍 Which is the odd one out? (a) a feather (b) a dry leaf (c) a cork (d) a coin
13. 13.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it dissolves (c) it sinks (d) it turns white
14. 14.⚖️ 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 kind of clay (c) whether it floats (d) the shape of the clay
15. 15.🧺 Do we need a tub of water for the float-or-sink test? (a) needed (b) not needed
16. 16.True or false: a coin sinks in water. (a) False (b) True
17. 17.True or false: a coin floats on water. (a) True (b) False
18. 18.🔮 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
19. 19.⚖️ 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) False (b) True
20. 20.🧺 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) small test objects (d) a balloon
21. 21.True or false: a cork floats on water. (a) False (b) True
22. 22.True or false: a battery cell is needed for the float-or-sink test. (a) True (b) False
23. 23.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a magnet (c) a tub of water (d) a towel for spills
24. 24.🛟 Which of these floats on water? (a) a ball of clay (b) an ice-cream stick (c) a coin (d) a glass marble
25. 25.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is kept the same. (a) False (b) True
26. 26.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) small test objects (c) a battery cell (d) a towel for spills
27. 27.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
28. 28.True or false: a balloon is needed for the float-or-sink test. (a) False (b) True
29. 29.True or false: a dry leaf floats on water. (a) False (b) True
30. 30.🛟 Which of these floats on water? (a) a piece of thermocol (b) a coin (c) a steel spoon (d) a glass marble
31. 31.⚖️ 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
32. 32.🛟 Does a steel spoon float or sink in water? (a) floats (b) sinks
33. 33.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) turmeric powder (b) a tub of water (c) a results table (d) a towel for spills
34. 34.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we keep it the same (b) we measure it (c) we change it
35. 35.🛟 Which of these sinks in water? (a) a dry leaf (b) a ping-pong ball (c) an ice-cream stick (d) a glass marble
36. 36.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) small test objects (c) yeast (d) a balloon
37. 37.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) small test objects (c) a tub of water (d) a mirror
38. 38.⚖️ 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 measure it (c) we change it
39. 39.⚖️ 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
40. 40.🔍 Which is the odd one out? (a) a cork (b) a pebble (c) a ball of clay (d) an iron nail

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