Science

Photons are the positive charge of an atom

Electrons are the negative charge of an atom

Metals can conduct heat and electricity well

Non metals are great insulators they protect us from heat

Forces that are equal are known as balanced forces

Forces that are not equal with each other are called unbalanced forces.

A force is a push or pull.

Friction slows down the motion of an object.

When you describe the location of an object you describe its position.

The change of the position of an object is called motion.

Velocity is the measurement of an objects speed and direction.

Simple machines have one or no moving parts.

Compound machines have two or more simple machines together.

A Chemical change is when you change the chemical in an object and it's irreversible.

A physical change is when you change how the look of a material.