Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 516 · 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.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it dissolves (c) it bounces up (d) it sinks
2. 2.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
3. 3.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a results table (c) a battery cell (d) small test objects
4. 4.⚖️ 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
5. 5.⚖️ 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
6. 6.⚖️ 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) True (b) False
7. 7.🔍 Which is the odd one out? (a) a metal key (b) an ice cube (c) a feather (d) an empty capped bottle
8. 8.⚖️ 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
9. 9.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it turns blue (b) it melts (c) it floats higher (d) it sinks
10. 10.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
11. 11.🌊 What pushes a floating cork upward? (a) the tub (b) the cork itself (c) the air above (d) the water
12. 12.🛟 Does an ice cube float or sink in water? (a) sinks (b) floats
13. 13.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is what we measure. (a) False (b) True
14. 14.🧊 Why does an ice cube float on water? (a) ice is less dense (b) water is sticky (c) ice is magnetic (d) ice is very cold
15. 15.True or false: a ball of clay floats on water. (a) False (b) True
16. 16.🛟 Does a cork float or sink in water? (a) sinks (b) floats
17. 17.🛟 Does a dry leaf float or sink in water? (a) floats (b) sinks
18. 18.🛟 Does an iron nail float or sink in water? (a) sinks (b) floats
19. 19.True or false: an ice-cream stick sinks in water. (a) False (b) True
20. 20.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we measure it (b) we keep it the same (c) we change it
21. 21.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
22. 22.🧺 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) turmeric powder (d) small test objects
23. 23.🛟 Does a coin float or sink in water? (a) floats (b) sinks
24. 24.🛟 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
25. 25.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the big log (b) neither of them (c) the small pebble (d) both of them
26. 26.🧺 Which of these is not needed for the float-or-sink test? (a) a magnet (b) a results table (c) small test objects (d) a tub of water
27. 27.True or false: turmeric powder is not needed for the float-or-sink test. (a) True (b) False
28. 28.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) the kind of clay (b) whether it floats (c) the shape of the clay
29. 29.🛟 Which of these sinks in water? (a) an iron nail (b) an ice-cream stick (c) a cork (d) a feather
30. 30.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) yeast (c) a results table (d) a tub of water
31. 31.🚢 Why can a heavy steel ship float on the sea? (a) steel is very light (b) sea water is warm (c) it has a magnet (d) its hollow shape
32. 32.True or false: a steel spoon sinks in water. (a) False (b) True
33. 33.⚖️ 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 kind of clay (c) the amount of clay (d) the shape of the clay
34. 34.🛟 Does a piece of thermocol float or sink in water? (a) floats (b) sinks
35. 35.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the kind of clay is what we measure. (a) False (b) True
36. 36.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
37. 37.⚖️ 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 amount of clay (c) whether it floats
38. 38.True or false: a pebble floats on water. (a) True (b) False
39. 39.🔮 A cork floats in tap water. What happens in very salty water? (a) it dissolves (b) it sinks (c) it still floats (d) it turns white
40. 40.🔍 Which is the odd one out? (a) a cork (b) an empty capped bottle (c) a ping-pong ball (d) a ball of clay

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