Question

matter is made up of particles and can take the form of a solid, liquid, or gas. a particle is a tiny piece that makes up an object. gas particles behave differently than solid or liquid particles.
gas has no definite shape or volume. it spreads out to take the shape of the container it is in.
gas particles

• are spread far apart from each other
• are spaced randomly
• are free to move around quickly
• have a high energy level

why do gas particles spread out to fill a balloon?
the particles have a definite shape.
the particles are locked in place.
the particles move freely.

Explanation:

Gas particles are spread far apart, spaced randomly, and are free to move around quickly. This allows them to spread out and fill the container (like a balloon) they are in. Solids have particles that are locked in place and have a definite shape, while liquids have more freedom than solids but less than gases. Since gas particles move freely, they can fill the balloon.

Answer:

The particles move freely.