Characteristics of a substance that describe its tendency to combine with other substances and forms new ones.

Amount of mass (g) in a given volume (cm3) of a substance or object; found by dividing mass of the object by its volume.

Can be pulled into thin wire.

Can be flattened or hammered into thin sheets.

Can break or shatter easily.

How the surface of a mineral appears when it reflects light (amount of shine).

A change in the identity of a substance that does not create or destroy atoms.

Facts which serves to either support or counter a scientific theory or hypothesis.

A solid substance that forms when two liquids are mixed together.

A thin layer of corrosion that forms over copper, brass, silver & other metals as the outer layer undergoes a chemical reaction. Causes a color change in the substance.

An arrangement of the elements in order of their atomic numbers such that elements with similar properties fall in the same column or group.

Vertical column of elements that share chemical properties in the periodic table.

Horizontal row of elements in the periodic table.

An element that is shiny and that conducts heat and electricity well.

An element that conducts heat and electricity poorly.

An element that has properties of both metals and nonmetals.

The smallest particle into which an element can be divided and still have the properties of that element.

The center of an atom that contains protons and neutrons.

Region around the nucleus where an electron may be found .

Positively charged particle found in the nucleus of an atom.

Neutrally charged particle found in the nucleus of an atom.

Negatively charged particle found outside of the nucleus of an atom.

Electrons in the outermost energy level (or shell) of an atom.

Outermost shell of an atom that determines its reactivity

Region of space around the nucleus where the electrons circle.

Also called electron shells; the distance from the nucleus where electrons may be found.

Rate at which a chemical substance undergoes a chemical reaction.

The sum of negative and positive charges.

a representation of a substance or compound using symbols for its elements

the number of molecules involved in the reaction; numbers in front of the element symbol

number of atoms of the element in the compound; the little number behind the element

represented by counting the total number of all of the elements in the compound (multiply by coefficients and/or subscripts when shown)

represented by the number of different symbols in the compound

elements or compounds that start a chemical reaction and undergo a change.

substance that is produced in a chemical reaction

the amount of product obtained from a chemical reaction represented by an arrow sign

states that mass is neither created nor destroyed by chemical reactions.

a process in which one or more substances (reactants) are converted to one or more different substances (products).

a push or pull on an object due to its interaction with another object.

two forces acting in opposite directions on an object, and do not cause a change in motion; equal in size

two forces acting on an object and causes a change in motion; not equal in size.

force caused when one object rubs against another; works in the opposite direction of the main force.

the sum of all forces acting on an object.

The tendency of an object to resist a change in motion

To oppose or go against the direction of motion

To operate in a particular action or in a similar way

Force caused by an external agent outside of the system

English physicist and creator of Newton's Three Laws of Motion

Arriving at a conclusion by reasoning from evidence

Become or make greater in size, amount, intensity, or degree

Make or become smaller or fewer in size, amount, intensity, or degree

Recognize or treat (someone or something) as different

Make or show a connection between

Be composed or made up of

For every action, there is an equal and opposite reaction

Force acting in one direction

Force acting in the opposite direction

To put forth vigorous action or effort, such as force

A set of two objects used together or connected as a unit

The acceleration of an object depends on the object's force and mass

An object's change in speed and direction

Speed in a given direction

To determine mathematically

To clearly show by reason or evidence

The distance traveled in a certain amount of time

Sharply angled, such as a steep hill

A measure of the steepness of a line

Units for speed; miles per hour or kilometers per hour

A diagram showing the relationship between two or more measurements

The total distance an object travels divided by the total amount of time that object traveled

Graph that describes an increasing speed of an object

Graph that describes a consistent speed over time

Graph that describes a decreasing speed of an object

Graph that shows an object that is not moving or at rest

Energy that is stored in an object due to its position

Energy of an object that is in motion

Change of energy from one form to another

Energy stored in chemical compounds and released during a chemical reaction (often in the form of heat)

Energy released by reactions with atomic nuclei from nuclear fission or fusion