what is matter

How many states of matter do we talk about on the site?

Five.

Which choice is the densest state of matter?

Solids.

what is mass?

a measure of the amount of matter that makes up an object.

This is when molecules of two different substances cling together?

adhesion

what is matter?

anything that has mass and takes up space.

As the pressure of a system changes, boiling points can change in what direction?

both

This is when molecules of the same substance cling together?

cohesion

when a gas changes into a liquid it is called what?

condensation.

Because electrons have been stripped away from nuclei in plasma, plasmas have a negative charge?

false.

True or false? Gases are hard to compress.

false.

true or false? The particles of a gas are packed tightly together?

false.

true or false? liquids are easy to compress?

false.

The state of matter that has no definite size or shape is?

gas.

The state of matter that has a definite size but no definite shape is?

liquid.

When a gas reaches its condensation point it becomes a what?

liquid.

when solids reach their melting points they become what?

liquids

Anything that takes up space and has mass or weight is?

matter.

The changing of a solid to a liquid is called?

melting

when a solid changes to a liquid it is called what?

melting.

The smallest part of a substance that still is that substance is?

molecule.

Molecules are closest together in a?

solid.

The state of matter that has a definite size and shape is?

solid.

What is it called when a solid changes directly into a gas?

sublimination.

what is inertia?

the ability of an object to resist a change in its motion.

what is volume?

the amount of space that an object takes up.

The freezing point will always be a lower temperature than the boiling point (with constant pressure)?

true

true or false? plasma is a state of matter?

true

A system requires energy to change from a solid state to a liquid state?

true.

True or false? Solids do not take the shape of the container they are in.

true.

Matter changes its state when heat is added or removed.

true?