States of Matter

Front

What is the definition of a liquid?

Back

A liquid has a definite volume but an indefinite shape.

Front

How do particle movements change at higher temperatures?

Back

At higher temperatures, particles in an object move faster.

Front

What is a physical change?

Back

A physical change is a change that does not alter the identity of a substance.

Front

Which state of matter has particles with the most energy?

Back

Gas has particles (molecules) that have more energy than the other states of matter.

Front

What is thermal energy?

Back

Thermal energy is the energy that comes from heat.

Front

What are the three main states of matter?

Back

The three main states of matter are solid, liquid, and gas.

Front

How does the shape of a solid differ from that of a liquid?

Back

A solid has a definite shape, while a liquid takes the shape of its container.

Front

What happens to the energy of particles when a substance changes from solid to liquid?

Back

The energy of the particles increases as the substance melts.

Front

What is the process called when a liquid turns into a gas?

Back

The process is called evaporation.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change does not change the identity of a substance, while a chemical change does.