SME
Grade 6 Science · Problem type
Sink or float?
Use this to sort materials by whether they sink or float in water.
Sort
Will it sink or float in fresh water?
Tap a card, then tap its group.
Assumptions
•
Compare each density with water’s: 1 g/cm³.
•
A steel ship floats because the hull and the air inside it together are less dense than water.
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Sea water is about 1.03 g/cm³, so things float a little higher in the ocean.
Topic check
See what you know: 5 questions on this topic
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