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Solids are the
thickest forms of matter. All the molecules in a solid are tightly
fitted together, so the molecules can’t move around very much.
Solids are made up of different parts or compounds. Unlike
liquids or gases, solids stay the same shape.
Examples of solids: wood, rock, and metal
The wood block is solid. A solid
has a certain size and shape.
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. How might you change the
shape of a piece of gum?
Matter is everywhere. Matter is anything that has mass and takes up
space. Matter can be as big as an elephant or as tiny as a grain of
sand. No one can tell what forms of matter make up planet earth. |
