Chemistry Basics
Anything that takes up space
Matter
Solid
The smallest particle of an element that still keeps the properties of that element
Atom
A solid that has a regular, repeating arrangement of atoms
Crystal
Two or more substances that have been combined- each substance keeps its own chemical identity
Mixture
The amount of space something takes up
Volume
A state of matter that has a definite volume, but not a definite shape. It flows freely and takes the shape of its container
Liquid
Positively charged particles in an atom
Protons
Tastes sour and comes from the Latin word acetum, which means vinegar
Acid
A mixture where larger particles are mixed into smaller particles, with the larger particles suspended throughout the mixture
Suspension
The amount of stuff (mass) packed in to a certain amount of space (volume)
Density
A state of matter that does not have a definite volume or shape
Gas
Negatively charged particles in an atom
Electrons
The chemical opposite of an acid
Base
A mixture in which the individual parts can be easily seen
Heterogeneous
The ability of an object to float
Buoyancy
The thickness or resistance to flow in a liquid
Viscosity
Contains at least two different elements combined
Compound
Scientists use this scale to determine whether a substance is an acid or base
pH scale
One substance that's dissolved into another substance
Solution
Bendable and can change shape without breaking
Malleable
Water striders and other insects can walk on water without sinking because molecules on the surface of the water stick together forming an invisible "skin" called
Surface Tension
Together, protons and neutrons are called
Nucleons
This reaction occurs when two or more chemical substances interact with each other and change into different chemical substances
Chemical Reaction
This type of molecule is lopsided. Just like a magnet, it has two different poles, one negative and the other positive.
Polar