Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 589 · 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.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
2. 2.🥚 A fresh egg sinks in plain water. What makes it float? (a) a few ice cubes (b) lots of salt stirred in (c) a little shaking (d) more plain water
3. 3.True or false: a results table is needed for the float-or-sink test. (a) True (b) False
4. 4.True or false: an ice cube sinks in water. (a) True (b) False
5. 5.🛟 Does a dry leaf float or sink in water? (a) sinks (b) floats
6. 6.🧺 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 results table (d) a towel for spills
7. 7.🔍 Which is the odd one out? (a) an iron nail (b) an empty capped bottle (c) a glass marble (d) a steel spoon
8. 8.🔍 Which is the odd one out? (a) a ball of clay (b) a coin (c) a steel spoon (d) a feather
9. 9.🧺 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 tub of water
10. 10.🛟 Does a metal key float or sink in water? (a) floats (b) sinks
11. 11.🧺 Which of these is needed for the float-or-sink test? (a) a results table (b) a mirror (c) yeast (d) a magnet
12. 12.🔍 Which is the odd one out? (a) an ice-cream stick (b) a ball of clay (c) a dry leaf (d) an empty capped bottle
13. 13.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) small test objects (c) a balloon (d) a results table
14. 14.🧺 Do we need a battery cell for the float-or-sink test? (a) not needed (b) needed
15. 15.🔍 Which is the odd one out? (a) a piece of thermocol (b) a ping-pong ball (c) an ice-cream stick (d) a pebble
16. 16.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is the one thing we change? (a) whether it floats (b) the shape of the clay (c) the tub of water (d) the amount of clay
17. 17.⚖️ 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
18. 18.🌊 What pushes a floating cork upward? (a) the tub (b) the cork itself (c) the water (d) the air above
19. 19.🔮 A cork floats in tap water. What happens in very salty water? (a) it turns white (b) it sinks (c) it still floats (d) it dissolves
20. 20.True or false: a pebble sinks in water. (a) False (b) True
21. 21.⚖️ 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) False (b) True
22. 22.🧺 Do we need small test objects for the float-or-sink test? (a) not needed (b) needed
23. 23.⚖️ 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
24. 24.True or false: a mirror is needed for the float-or-sink test. (a) True (b) False
25. 25.🧊 Why does an ice cube float on water? (a) ice is magnetic (b) ice is very cold (c) ice is less dense (d) water is sticky
26. 26.True or false: a balloon is not needed for the float-or-sink test. (a) False (b) True
27. 27.🔍 Which is the odd one out? (a) an empty capped bottle (b) an ice-cream stick (c) a dry leaf (d) a metal key
28. 28.🛟 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
29. 29.🧺 Which of these is needed for the float-or-sink test? (a) a mirror (b) a towel for spills (c) a balloon (d) a battery cell
30. 30.True or false: a dry leaf sinks in water. (a) True (b) False
31. 31.🧺 Do we need a results table for the float-or-sink test? (a) not needed (b) needed
32. 32.🔮 A big log and a small pebble go into a pond. Which one floats? (a) both of them (b) neither of them (c) the small pebble (d) the big log
33. 33.⚖️ 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
34. 34.🔍 Which is the odd one out? (a) an ice-cream stick (b) a coin (c) a cork (d) a ping-pong ball
35. 35.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a magnet (c) a tub of water (d) small test objects
36. 36.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the tub of water (b) the amount of clay (c) whether it floats (d) the kind of clay
37. 37.🛟 Does a coin float or sink in water? (a) floats (b) sinks
38. 38.🧺 Do we need a magnet for the float-or-sink test? (a) not needed (b) needed
39. 39.🔮 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
40. 40.⚖️ 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

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