Question

marvin places a wooden block into a beaker of water. this is what he observes.
complete the sentence to explain marvin’s observation.
the wooden block ____________ the water because the wooden block is __ dense than the water.

sinks in... more

sinks in... less

floats on the surface of... more

floats on the surface of... less

Explanation:

An object floats in a fluid if its density is lower than the fluid's density. The image shows the wooden block sitting on top of the water's surface, so it floats, and this happens because wood has a lower density than water.

Answer:

floats on the surface of . . . less