Floating and Sinking Experiment Worksheet

Science experiments lesson 1: Floating and sinking · Set 172 · 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.True or false: yeast is needed for the float-or-sink test. (a) True (b) False
2. 2.🧺 Which of these is not needed for the float-or-sink test? (a) a mirror (b) a results table (c) a tub of water (d) small test objects
3. 3.🔍 You drop a coin into a tub of water. What do you see? (a) it floats (b) it bounces up (c) it dissolves (d) it sinks
4. 4.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a results table (b) a towel for spills (c) yeast (d) small test objects
5. 5.🥚 A fresh egg sinks in plain water. What makes it float? (a) more plain water (b) a little shaking (c) lots of salt stirred in (d) a few ice cubes
6. 6.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) a magnet (c) a balloon (d) small test objects
7. 7.🧺 Which of these is needed for the float-or-sink test? (a) a battery cell (b) turmeric powder (c) a magnet (d) a towel for spills
8. 8.⚖️ 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 measure it (b) we change it (c) we keep it the same
9. 9.⚖️ Fair test — does the shape of a lump of clay change whether it floats? Which of these is what we measure? (a) the kind of clay (b) whether it floats (c) the shape of the clay (d) the amount of clay
10. 10.True or false: a results table is needed for the float-or-sink test. (a) False (b) True
11. 11.🛟 Does an ice cube float or sink in water? (a) floats (b) sinks
12. 12.🔮 A cork floats in tap water. What happens in very salty water? (a) it still floats (b) it dissolves (c) it turns white (d) it sinks
13. 13.🔍 Which is the odd one out? (a) a ball of clay (b) an ice-cream stick (c) a feather (d) an ice cube
14. 14.🧺 Which of these is needed for the float-or-sink test? (a) a magnet (b) a results table (c) a mirror (d) turmeric powder
15. 15.🛟 Why should a grown-up watch when children play near a big tub of water? (a) to hide the corks (b) to keep children safe (c) to splash everyone (d) to win a prize
16. 16.⚖️ 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 keep it the same (b) we change it (c) we measure it
17. 17.🧊 Why does an ice cube float on water? (a) ice is less dense (b) ice is very cold (c) water is sticky (d) ice is magnetic
18. 18.🔮 Predict: an empty capped bottle floats. What happens if you fill it with sand? (a) it floats higher (b) it melts (c) it turns blue (d) it sinks
19. 19.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a cork (c) an iron nail (d) a ping-pong ball
20. 20.True or false: an iron nail floats on water. (a) True (b) False
21. 21.🔍 Which is the odd one out? (a) a pebble (b) a ping-pong ball (c) a ball of clay (d) a coin
22. 22.🛟 Which of these sinks in water? (a) a ball of clay (b) an ice cube (c) a feather (d) a dry leaf
23. 23.⚖️ 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 measure it (b) we change it (c) we keep it the same
24. 24.⚖️ 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
25. 25.🛟 Which is the safe way to do the float-or-sink test? (a) wipe up spills at once (b) run around the tub (c) play near a deep pond (d) leave water on the floor
26. 26.⚖️ 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 kind of clay
27. 27.🔮 A big log and a small pebble go into a pond. Which one floats? (a) the big log (b) the small pebble (c) neither of them (d) both of them
28. 28.True or false: an ice-cream stick sinks in water. (a) True (b) False
29. 29.🛟 Does a piece of thermocol float or sink in water? (a) sinks (b) floats
30. 30.True or false: a metal key floats on water. (a) True (b) False
31. 31.⚖️ 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 amount of clay (c) the tub of water (d) the shape of the clay
32. 32.True or false: a results table is not needed for the float-or-sink test. (a) False (b) True
33. 33.⚖️ 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
34. 34.⚖️ 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 change it (b) we measure it (c) we keep it the same
35. 35.⚖️ 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
36. 36.⚖️ 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
37. 37.🧺 Do we need a towel for spills for the float-or-sink test? (a) not needed (b) needed
38. 38.True or false: a mirror is needed for the float-or-sink test. (a) True (b) False
39. 39.🛟 Which of these sinks in water? (a) an ice-cream stick (b) a dry leaf (c) a coin (d) a cork
40. 40.🔮 A ball of clay sinks. What happens if you press it into a thin boat shape? (a) it dissolves (b) it sinks faster (c) it can float (d) it turns to stone

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