Intro to Thermal Energy MS-PS1-6

Grade 7 - NGSS - CA

The process where substances change into different substances through the breaking of chemical bonds

Chemical reaction

The process where substances change into different substances through the breaking of chemical bonds is called a chemical reaction. A chemical reaction is when substances mix and change to form new materials.

The ability of a material to let heat or electricity pass through

Conductivity

The ability of a material to let heat or electricity pass through is called conductivity. Conductivity is how well a material allows energy like heat or electricity to flow through it.

A heat-absorbing chemical reaction, like ice melting

Endothermic reaction

A heat-absorbing chemical reaction, like ice melting. Endothermic reaction. An endothermic reaction is when a process takes in heat from its surroundings, causing the area around it to get cooler.

A heat-releasing chemical reaction, like burning or combustion

Exothermic reaction

A heat-releasing chemical reaction, like burning or combustion, is called an exothermic reaction. An exothermic reaction is one that gives off heat to its surroundings.

A material that slows the transfer of heat energy

Insulation

A material that slows the transfer of heat energy. Insulation. Insulation is a material that helps keep heat in or out, like a blanket for warmth.

How hot or cold something is, it is determined by the kinetic energy of its particles

Temperature

How hot or cold something is, it is determined by the kinetic energy of its particles. Temperature. Temperature is a measure of how fast the particles in an object are moving.

The energy of the moving particles in an object

Thermal energy

The energy of the moving particles in an object. Thermal energy. Thermal energy is the energy that comes from the movement of particles in an object, making it feel warm.