How can we help?
You can also find more resources in our
Select a category
Something is confusing
Something is broken
I have a suggestion
What is your email?
What is 1 + 3?
Earth Science Matter / Atoms Ch. 4 S1
anything that takes up space and has mass
changes that do not effect the composition of the substance
changes to the composition of the substance due to a reaction between substances
examples of physical properties
density, color, hardness, freezing point, boiling point, conduction of electrical currents
a substance that cannot be separated or broken down into simpler substances by chemical means
smallest unit of an element that has the chemical properties of that element; each element is made up of one kind of element
subatomic particle in the nucleus that has a positive charge
subatomic particle in the nucleus that has a neutral charge (no charge positively or negatively)
subatomic particle with a negative charge that moves around the nucleus
one f two or more atoms that have the same number of protons, but different numbers of neutrons.
process of a solid turning directly to a gas without going through a liquid phase
process of a gas turning directly to a solid without going through the liquid phase
process of a gas turning into a liquid
process of solids changing to a liquid
process of a liquid turning into a solid
process of liquid turning into a gas