Phases of Matter

In every _____, the atoms are packed tightly together and vibrate in place.

One of the most common ways for a phase change to occur is by a change in __________.

When more heat is added, the particles in a solid move around more. When there is enough heat, the solid will ___ into a liquid

A _________ is the smallest possible part of a compound and often contains atoms of the same element bonded together. (O2 and H2)

Sometimes, a solid can turn into a gas by skipping the liquid phase. Dry Ice is an example of this process, known as __________.

When the air gets cooler, water droplets on grass can turn into frost. This is an example of

A ___________ property describes an element’s ability to change into a new substance.

When the temperature decreases, water vapor (gas) slows down and will turn back into liquid water. What is this phase change?

The point at which a solid becomes a liquid is called the _____ _____.

When the temperature gets really low, gas particles can skip the liquid phase and instantly turn into solid. Snow forms this way in the cloud. This is the phase change called ________.

Heat is a form of _______.

Some ________ properties include: hardness, texture, density, flexibility, color.

In ______, the atoms have SO MUCH ENERGY, that they all travel super fast and are impossible to see.

In order for a liquid to turn into a gas, ______ (less/more) heat is needed.

The point where a liquid becomes a solid is known as its' ______ _____.

The Sun helps to _________ water and turn into from a liquid to a gas.

In science, energy refers to the ability to do ____.

In __________, the atoms have more energy and move around more than they would in a solid object, but less energy than in a gas.

The point where a liquid evaporates into a gas is known as the _____ ______.

A ________ is formed when 2 or more elements are chemically bonded together. (H2O and CO2)