BJU Chapter 2

Anything that has mass and takes up space.

• matter
• volume
• pure
• element

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-4

The basic unit of matter--made of protons, neutrons, and electrons.

• atom
• element
• compound
• substance

Tags

NGSS.HS-PS1-7

Pure substances made of only one kind of atom.

• element
• atom
• compound
• substance

Ability to do work or cause change.

• energy
• temperature
• entropy

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-1

NGSS.HS-PS3-2

NGSS.HS-PS3-3

A measure of the speed (average kinetic energy) of the particles in a sample of matter--relative hotness or coldness.

• temperature
• energy
• entropy

A measure of how much the energy of a system is dispersed or spread out.

• entropy
• temperature
• energy

Tags

NGSS.HS-PS3-4

Changes that do not change the identity of the matter--changes affecting the form of a chemical substance, but not its chemical composition.

• physical changes
• chemical changes
• phase changes

Tags

NGSS.MS-PS1-4

Changes that completely transform the identity of matter--process by which a substance becomes a new substance (goes through a chemical reaction, burning, rusting).

• chemical changes
• physical changes
• phase changes

Tags

NGSS.HS-PS1-4

NGSS.HS-PS1-2

An attractive force acting between atoms--stored chemical energy holding the atoms together.

• bond
• adhesion
• cohesion

Tags

NGSS.HS-PS1-4

NGSS.HS-PS1-3

A pure substance made of two or more elements chemically combined.

• compound
• mixture

Tags

NGSS.MS-PS1-1