Pg 71 liquids cannot be compressed because of the way its particles are spaced. Just enough room to move around and bump into each other but also cohesive, that want to stick together.

Liquids are virtually incompressible because of the way the particles of liquid are packed. (Water and other liquids cannot be compressed) Page 71 paragraph (last paragraph)

pg 71 last paragraph

liquids are virtually incompressible because the way the particles of a liquid are packed

First of all, water (or other liquids) cannot be compressed, which means that when water is compressed, its volume remains the same, such as the hydraulic press which USES this principle.

How can water be compressed? In fact, water can be compressed objectively, and so is the other liquid, so much so that it can be ignored.

Pressure in liquids. Particles in liquids are close together, making liquids virtually incompressible. As the particles move around, they collide with other particles and with the walls of the container. http://www.bbc.co.uk/schools/gcsebitesize/science/triple_aqa/using_physics_make_things_work/hydraulics/revision/1/