Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 267 · 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 is not needed for the float-or-sink test? (a) a results table (b) small test objects (c) a mirror (d) a tub of water
2. 2.🧺 Do we need yeast for the float-or-sink test? (a) needed (b) not needed
3. 3.🔍 Which is the odd one out? (a) a ball of clay (b) a coin (c) an iron nail (d) a dry leaf
4. 4.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a results table (c) a battery cell (d) a towel for spills
5. 5.True or false: a piece of thermocol floats on water. (a) False (b) True
6. 6.🥚 A fresh egg sinks in plain water. What makes it float? (a) lots of salt stirred in (b) a little shaking (c) more plain water (d) a few ice cubes
7. 7.True or false: a mirror is needed for the float-or-sink test. (a) True (b) False
8. 8.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it melts (b) it floats higher (c) it turns blue (d) it sinks
9. 9.🚢 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
10. 10.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to keep children safe (b) to win a prize (c) to splash everyone (d) to hide the corks
11. 11.True or false: a magnet is not needed for the float-or-sink test. (a) True (b) False
12. 12.⚖️ 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
13. 13.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: the amount of clay is kept the same. (a) True (b) False
14. 14.🔍 Which is the odd one out? (a) an ice cube (b) a cork (c) a coin (d) a dry leaf
15. 15.🛟 Which of these sinks in water? (a) a ball of clay (b) an empty capped bottle (c) a cork (d) an ice cube
16. 16.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the small pebble (b) neither of them (c) both of them (d) the big log
17. 17.🔍 Which is the odd one out? (a) a pebble (b) a coin (c) a metal key (d) a feather
18. 18.True or false: a coin floats on water. (a) False (b) True
19. 19.🔍 You drop a coin into a tub of water. What do you see? (a) it sinks (b) it floats (c) it bounces up (d) it dissolves
20. 20.⚖️ 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) True (b) False
21. 21.🛟 Does a dry leaf float or sink in water? (a) floats (b) sinks
22. 22.🛟 Which of these floats on water? (a) a pebble (b) a cork (c) a glass marble (d) a metal key
23. 23.⚖️ 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
24. 24.🌊 What pushes a floating cork upward? (a) the air above (b) the cork itself (c) the tub (d) the water
25. 25.🧺 Do we need a magnet for the float-or-sink test? (a) needed (b) not needed
26. 26.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) small test objects (b) a tub of water (c) a results table (d) a magnet
27. 27.🛟 Does a steel spoon float or sink in water? (a) floats (b) sinks
28. 28.🧺 Which of these is not needed for the float-or-sink test? (a) a towel for spills (b) a results table (c) a battery cell (d) a tub of water
29. 29.🧺 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
30. 30.🧺 Do we need turmeric powder for the float-or-sink test? (a) needed (b) not needed
31. 31.⚖️ 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
32. 32.⚖️ Fair test — does the shape of a lump of clay change whether it floats? What do we do with “whether it floats”? (a) we change it (b) we measure it (c) we keep it the same
33. 33.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a tub of water (c) a results table (d) a balloon
34. 34.🧺 Which of these is needed for the float-or-sink test? (a) turmeric powder (b) a balloon (c) a towel for spills (d) a magnet
35. 35.🔮 A cork floats in tap water. What happens in very salty water? (a) it sinks (b) it still floats (c) it turns white (d) it dissolves
36. 36.⚖️ Fair test — does the shape of a lump of clay change whether it floats? True or false: whether it floats is the one thing we change. (a) True (b) False
37. 37.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) turmeric powder (b) a tub of water (c) small test objects (d) a results table
38. 38.🧺 Do we need a tub of water for the float-or-sink test? (a) not needed (b) needed
39. 39.🧺 Which of these is not needed for the float-or-sink test? (a) small test objects (b) a results table (c) a towel for spills (d) yeast
40. 40.🧺 Do we need a balloon for the float-or-sink test? (a) needed (b) not needed

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