Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 941 · 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 floats on water? (a) a metal key (b) an iron nail (c) a cork (d) a glass marble
2. 2.🔍 You drop a coin into a tub of water. What do you see? (a) it dissolves (b) it floats (c) it bounces up (d) it sinks
3. 3.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is the one thing we change. (a) False (b) True
4. 4.🛟 Does a pebble float or sink in water? (a) sinks (b) floats
5. 5.🧺 Which of these is needed for the float-or-sink test? (a) a tub of water (b) a magnet (c) yeast (d) a balloon
6. 6.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is very cold (c) ice is less dense (d) ice is magnetic
7. 7.True or false: a glass marble floats on water. (a) True (b) False
8. 8.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the amount of clay (b) whether it floats (c) the shape of the clay
9. 9.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a results table (c) a tub of water (d) turmeric powder
10. 10.⚖️ 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) True (b) False
11. 11.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the amount of clay (b) the shape of the clay (c) whether it floats (d) the tub of water
12. 12.🛟 Which of these floats on water? (a) an iron nail (b) a coin (c) a steel spoon (d) a feather
13. 13.🔍 Which is the odd one out? (a) a ball of clay (b) an ice cube (c) a pebble (d) an iron nail
14. 14.⚖️ 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
15. 15.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) turmeric powder (c) a towel for spills (d) a balloon
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 battery cell (c) a towel for spills (d) small test objects
17. 17.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it still floats (c) it sinks (d) it turns white
18. 18.⚖️ 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
19. 19.🛟 Which of these sinks in water? (a) a ball of clay (b) a ping-pong ball (c) a cork (d) an ice-cream stick
20. 20.⚖️ 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) the kind of clay (c) whether it floats
21. 21.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
22. 22.True or false: turmeric powder is not needed for the float-or-sink test. (a) False (b) True
23. 23.⚖️ 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 keep it the same (b) we measure it (c) we change it
24. 24.🧺 Which of these is needed for the float-or-sink test? (a) a results table (b) a magnet (c) a battery cell (d) a mirror
25. 25.🔍 Which is the odd one out? (a) a cork (b) a ball of clay (c) a ping-pong ball (d) an empty capped bottle
26. 26.⚖️ 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
27. 27.⚖️ 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 change it (b) we keep it the same (c) we measure it
28. 28.🛟 Which of these sinks in water? (a) a pebble (b) a piece of thermocol (c) a ping-pong ball (d) an empty capped bottle
29. 29.🔍 Which is the odd one out? (a) a pebble (b) a ball of clay (c) a glass marble (d) a feather
30. 30.🔮 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 dissolves (d) it sinks faster
31. 31.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the big log (b) both of them (c) neither of them (d) the small pebble
32. 32.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to splash everyone (c) to hide the corks (d) to keep children safe
33. 33.🧺 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 tub of water (d) small test objects
34. 34.⚖️ 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 keep it the same (c) we measure it
35. 35.True or false: a tub of water is needed for the float-or-sink test. (a) False (b) True
36. 36.🔍 Which is the odd one out? (a) a piece of thermocol (b) an empty capped bottle (c) an ice-cream stick (d) a coin
37. 37.🚢 Why can a heavy steel ship float on the sea? (a) it has a magnet (b) its hollow shape (c) sea water is warm (d) steel is very light
38. 38.True or false: a mirror is not needed for the float-or-sink test. (a) False (b) True
39. 39.True or false: a towel for spills is not needed for the float-or-sink test. (a) False (b) True
40. 40.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) turmeric powder (c) a results table (d) a towel for spills

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