Science olympiad "it matters"
Smallest unit of matter that retains the properties of an element
A substance that forms when two or more elements combine chemically
A cloud of Electrons that surrounds the Nucleus.
A substance that cannot be broken down into simpler substances
A negatively charged particle outside the nucleus of an atom.
To cgange from a liquid or solid to a gas.
A process that separates a solid from the liquid in a heterogeneous mixture
A mixture that is un-evenly mixed.
A mixture that is evenly mixed. also called a solution.
Anything that has mass and takes up space
A combination of two or more substances that are not chemically combined.
smallest unit of a substance that retains that compound's properties
Electrically neutral partical that has the same mass as a proton and is found in an atom's nucleus.
positively charged mass within an atom that contains protons and neutrons.
A positively charged particle in the nucleus of an atom
Any single type of material that is free from containment and has not been mixed with any other substance.
A substance that is dissolved in a solution.
A homogeneous mixture of two or more substances
A substance in which solutes dissolve
Electrons in the outermost shell which can combine with other atoms to form molecules.
Ability to float
Definite shape and volume
A state of matter that has a definite volume but no definite shape.
A state of matter with no definite shape or volume
A system of weights and measures that is based on multiples of 10
Amount of space occupied by a fluid
A change in matter that produces one or more new substances
Energy that is being transferred.
A material that does not allow heat or electrons to move through it easily.
A change in a substance that does not involve a change in the identity of the substance