The wood block does not change size or shape. Other examples of solids are the computer, the desk, and the floor. You can change the shape of solids. You change the shape of sheets of lumber by sawing it in half or burning it. Liquids Milk is a liquid.
Milk is liquid matter.
It has a size or volume. Volume means it takes up space. But milk doesn't have a definite shape. It takes the shape of its container. Liquids can flow, be poured, and spilled.