Changes in Matter

What is exothermic energy?

• a change in which energy is given off

• a change in which energy is taken in

• the total energy of all the particles of an object

• a measure of the average energy of motion of motion of the particles of a substance

What is endothermic change?

• The ability to do work or cause change

• A change in a substance that doe not change its identity

• A change in which energy is given off

• A change in which energy is taken in

What is energy?

• The principal that the total matter is neither created nor destroyed during any chemical or physical change

• A change in a substance that does not change its identity

• The ability to do work or cause change

• A change in which energy is taken

What is physical change?

• A change in which energy is take in

• A change in a substance that does not change its identity

• The total energy of all particles of a object

• The ability to do work or cause change

What is thermal change?

• A change in which energy is taken off

• The ability to do work or cause change

• A change in a substance that does not change its identity

• The total energy of all the particles on an object.

What is temperature?

• A measure of the average energy of motion of the particles of a substance

• The ability to work or cause change

• A change in which energy is given off

• A change in which energy is taken in

What is the law of conservation?

• The principal that the total matter is neither created nor destroyed during any chemical or physical change

• A change in which energy is taken in

• The total energy pf all the particles of an object

• The ability to do work or cause change

What is chemical change?

• The ability to do work or cause change

• A change in a substance that does not change its identity

• A change in which one or more substances combine or break apart to form new substances

• The total energy of all the particles of an object

Liquid water changing into water vapor (gas) is a physical or chemical change?

Check all the examples of physical change.

• bending

• breaking

• chopping

• dissolving

• crushing