Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 187 · 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.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to win a prize (b) to keep children safe (c) to hide the corks (d) to splash everyone
2. 2.🧊 Why does an ice cube float on water? (a) ice is less dense (b) water is sticky (c) ice is very cold (d) ice is magnetic
3. 3.🚢 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
4. 4.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it sinks (c) it turns blue (d) it melts
5. 5.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it bounces up (c) it sinks (d) it dissolves
6. 6.True or false: yeast is needed for the float-or-sink test. (a) True (b) False
7. 7.True or false: a piece of thermocol floats on water. (a) False (b) True
8. 8.True or false: small test objects is not needed for the float-or-sink test. (a) False (b) True
9. 9.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is kept the same? (a) whether it floats (b) the shape of the clay (c) the amount of clay
10. 10.🧺 Which of these is needed for the float-or-sink test? (a) a results table (b) a battery cell (c) a balloon (d) a magnet
11. 11.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
12. 12.⚖️ 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 change it (b) we keep it the same (c) we measure it
13. 13.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) whether it floats (b) the tub of water (c) the amount of clay (d) the kind of clay
14. 14.🌊 What pushes a floating cork upward? (a) the air above (b) the water (c) the cork itself (d) the tub
15. 15.⚖️ 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) True (b) False
16. 16.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a balloon (c) a tub of water (d) a towel for spills
17. 17.True or false: small test objects is needed for the float-or-sink test. (a) True (b) False
18. 18.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a balloon (c) a tub of water (d) a mirror
19. 19.🛟 Does a pebble float or sink in water? (a) sinks (b) floats
20. 20.🛟 Does a steel spoon float or sink in water? (a) floats (b) sinks
21. 21.🔮 A big log and a small pebble go into a pond. Which one floats? (a) neither of them (b) both of them (c) the big log (d) the small pebble
22. 22.🛟 Does a piece of thermocol float or sink in water? (a) floats (b) sinks
23. 23.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it still floats (c) it dissolves (d) it sinks
24. 24.🧺 Do we need a results table for the float-or-sink test? (a) needed (b) not needed
25. 25.True or false: an empty capped bottle sinks in water. (a) False (b) True
26. 26.🧺 Which of these is needed for the float-or-sink test? (a) yeast (b) a towel for spills (c) a balloon (d) a battery cell
27. 27.🔍 Which is the odd one out? (a) a feather (b) a ball of clay (c) a cork (d) an ice-cream stick
28. 28.True or false: a results table is needed for the float-or-sink test. (a) True (b) False
29. 29.🧺 Which of these is not needed for the float-or-sink test? (a) a results table (b) turmeric powder (c) small test objects (d) a tub of water
30. 30.🧺 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 towel for spills (d) a magnet
31. 31.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a towel for spills (b) small test objects (c) a balloon (d) a tub of water
32. 32.⚖️ 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
33. 33.🛟 Does a ping-pong ball float or sink in water? (a) sinks (b) floats
34. 34.⚖️ 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
35. 35.🔍 Which is the odd one out? (a) a cork (b) an ice cube (c) a coin (d) a ping-pong ball
36. 36.⚖️ 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
37. 37.⚖️ 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) True (b) False
38. 38.🧺 Which of these is not needed for the float-or-sink test? (a) yeast (b) a results table (c) a towel for spills (d) small test objects
39. 39.True or false: a piece of thermocol sinks in water. (a) True (b) False
40. 40.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) turmeric powder (b) small test objects (c) a results table (d) a towel for spills

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