Hays DPM1 Review

Front

What is a mixture?

Back

A mixture is a combination of two or more substances where each substance retains its own properties.

Front

What is thermal energy?

Back

Thermal energy is the energy that comes from the temperature of matter. It is the energy that makes things hot.

Front

What happens during condensation?

Back

Condensation is the process where water vapor cools down and changes back into liquid water.

Front

What is matter?

Back

Matter is anything that has mass and takes up space. It can be solid, liquid, or gas.

Front

What is gravity?

Back

Gravity is a force that pulls objects toward each other. It keeps us on the ground and causes things to fall.

Front

What is an example of a thermal energy device?

Back

A clothes iron is an example of a device that uses thermal energy to heat and press clothes.

Front

What is the difference between boiling and melting?

Back

Boiling is when a liquid turns into vapor, while melting is when a solid turns into a liquid.

Front

What does it mean to remove heat energy?

Back

Removing heat energy means cooling something down, which can change its state, like from vapor to liquid.

Front

What is an example of a mixture?

Back

An example of a mixture is salad, where different ingredients are combined but can still be separated.

Front

What is the role of air in gravity?

Back

Air does not push objects down; gravity is the force that pulls objects toward the Earth.