Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 247 · 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? True or false: the shape of the clay is what we measure. (a) False (b) True
2. 2.⚖️ 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) whether it floats (c) the kind of clay
3. 3.🔍 Which is the odd one out? (a) an ice cube (b) a steel spoon (c) a coin (d) a metal key
4. 4.🛟 Does an ice-cream stick float or sink in water? (a) floats (b) sinks
5. 5.🛟 Which of these sinks in water? (a) an empty capped bottle (b) an ice cube (c) a pebble (d) a dry leaf
6. 6.🧺 Which of these is not needed for the float-or-sink test? (a) a tub of water (b) a results table (c) small test objects (d) a magnet
7. 7.🔍 You drop a coin into a tub of water. What do you see? (a) it bounces up (b) it sinks (c) it dissolves (d) it floats
8. 8.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a battery cell (b) small test objects (c) a towel for spills (d) a tub of water
9. 9.🛟 Which of these sinks in water? (a) an empty capped bottle (b) a feather (c) a dry leaf (d) a coin
10. 10.🧺 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
11. 11.⚖️ 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
12. 12.🛟 Which is the safe way to do the float-or-sink test? (a) run around the tub (b) play near a deep pond (c) wipe up spills at once (d) leave water on the floor
13. 13.True or false: a mirror is needed for the float-or-sink test. (a) False (b) True
14. 14.True or false: a tub of water is not needed for the float-or-sink test. (a) False (b) True
15. 15.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a results table (c) a towel for spills (d) a magnet
16. 16.🧺 Do we need turmeric powder for the float-or-sink test? (a) not needed (b) needed
17. 17.🌊 What pushes a floating cork upward? (a) the tub (b) the air above (c) the cork itself (d) the water
18. 18.True or false: a towel for spills is needed for the float-or-sink test. (a) False (b) True
19. 19.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) turmeric powder (c) a magnet (d) a towel for spills
20. 20.🧺 Which of these is not needed for the float-or-sink test? (a) a balloon (b) a results table (c) a towel for spills (d) small test objects
21. 21.🛟 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
22. 22.⚖️ 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
23. 23.True or false: a glass marble floats on water. (a) True (b) False
24. 24.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
25. 25.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a towel for spills (c) a mirror (d) small test objects
26. 26.🧺 Do we need a mirror for the float-or-sink test? (a) not needed (b) needed
27. 27.⚖️ 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 keep it the same (c) we change it
28. 28.🛟 Does a feather float or sink in water? (a) floats (b) sinks
29. 29.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it still floats (c) it dissolves (d) it turns white
30. 30.🚢 Why can a heavy steel ship float on the sea? (a) sea water is warm (b) it has a magnet (c) its hollow shape (d) steel is very light
31. 31.🔮 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 can float (d) it sinks faster
32. 32.🔍 Which is the odd one out? (a) a metal key (b) a ball of clay (c) a piece of thermocol (d) a pebble
33. 33.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the tub of water is the one thing we change. (a) False (b) True
34. 34.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a results table (c) a battery cell (d) a mirror
35. 35.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) a tub of water (c) small test objects (d) a balloon
36. 36.🛟 Which of these floats on water? (a) a ball of clay (b) a glass marble (c) a pebble (d) a dry leaf
37. 37.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it floats higher (c) it sinks (d) it turns blue
38. 38.🧺 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 tub of water (d) turmeric powder
39. 39.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a magnet (c) a mirror (d) a tub of water
40. 40.🧊 Why does an ice cube float on water? (a) water is sticky (b) ice is magnetic (c) ice is less dense (d) ice is very cold

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