Properties that can be measured only by chemically
changing an object

Matter cannot be created or destroyed.

Anything that has mass and occupies space

When matter has a change in its physical properties but not its chemical properties

Liquid to a solid

Properties that are measurable and can be observed, can be determined without changing the chemical properties of an object

( Examples: color, hardness, area, length, strength, temperature, state of matter)

Process where two or more substances combine
chemically in some way to form one or more other substances.

Pure chemical substances that are made up of one type of atom

A reversible change

Gas to a solid

Physical property that is the amount of space that an object or substance occupies

The substances, elements, or compounds on the LEFT side of the arrow in a chemical equation

What begins or enters a chemical reaction

Smallest unit of matter that defines the chemical

Iron rusting and wood burning are examples of this.

Liquid to a gas

Physical property that describes how tightly matter is put together

Thomas burns 35 (kg) kilograms of leaves. The by-products are smoke and ashes. The by-products have a mass of ____ kg.

Negatively charged subatomic particles found in the electron cloud of an atom

When matter breaks down into two or more substances or when more than one substance is combined to form a new substance

Gas to a liquid

The four different forms or states that matter can be found in (states of matter)

The substances, elements, or compounds on the RIGHT side of the arrow in a chemical equation

What is formed or produced in a chemical reaction

The sub-atomic particles in the nucleus of an atom and their charges.

A new substance is formed when this happens

Solid to a gas