The branch of science concerned with the nature and properties of matter and energy
The study of living organisms, divided into many specialized fields.
The science that deals with materials of the universe and the changes that these materials undergo
The intellectual and practical activity encompassing the systematic study of the structure and behavior of the physical and natural phenomenons.
Something that is witnessed and can be recorded.
An interpretation, or a possible explanation of why nature behaves in a particular way.
A statement that summarizes generally observed behavior.
A possible explanation for an observation.
Something that has mass and occupies space.
Fundamental unit of which elements are made.
Substances that contain only one type of atom.
Substances that are made by bonding atoms together in a specific way.
A substance without variable composition
A substance with variable composition
Pure element or pure compound
A mixture of elements
A mixture of atoms
A separation process that depends on the boiling points of the substances
An agent that is used to distillate water
Separation of a solid from a liquid by using filter paper
A given compound always contains elements in exactly the same proportion by mass
The fact that a substance made of two or more different elements joined together in a specific way is called a compound
Elements are made up of tiny particles called atoms
The number of protons in the nucleus of a given atom
The total number of protons and neutrons in the nucleus of a given atom
Atoms with the same number of protons but different number of neutrons
The number of electrons in the nucleus of a given atom
Efficient conduction of heat and electricity
Ability to be eaten (edible)
Malleability (can be hammered into thin sheets)
Ability to change in state of matter
Lacking shininess (luster)
A lustrous appearance
Ductility (can be pulled into thin wires)