Anything that has mass and takes up space

Which substances have the lowest melting points: ionic covalent, or metallic

Layers of rock containing fossils, like the layers illustrated here, are most likely composed of rocks.

14. many depressants reduce small muscle control, making it harder for a. you to steer b. your mind to consider complex problems c. the eye to scan, focus, or stay still d. the kidneys to filter alcohol out of the bloodstream