ES Background and Essentials Review

Front

What is the most common state of matter in the universe?

Back

Plasma

Front

Why is Earth Science important?

Back

It helps forecast disasters and manage resources.

Front

What is the charge of electrons?

Back

Electrons have no mass.

Front

How is plasma best described?

Back

A gas of ionized particles.

Front

What environmental problem occurs when harmful substances are introduced into the environment?

Back

Pollution.

Front

What is the definition of matter?

Back

Anything that has mass and takes up space.

Front

What are the four main states of matter?

Back

Solid, liquid, gas, and plasma.

Front

What is the difference between a solid and a liquid?

Back

Solids have a fixed shape, while liquids take the shape of their container.

Front

What is an ion?

Back

An atom or molecule with a net electric charge due to the loss or gain of one or more electrons.

Front

What is the role of protons in an atom?

Back

Protons determine the atomic number and identity of an element.