A force that opposes the relative motion of two material surfaces in contact with one another.
What is friction?
100
The smallest unit of a chemical element that can still retain the properties of that element.
What is an atom?
100
Unit of energy; the amount of heat needed to raise one gram of water one degree Celsius at standard atmospheric pressure.
What is a calorie?
100
The pivot point of a lever.
What is fulcrum?
100
A plan of inquiry that uses science process skills as a tool to gather, organize, analyze, and communicate information.
What is the scientific method?
200
Rate of change in velocity, usually expressed in meters per second; involves an increase or decrease in speed and/or a change in direction.
What is acceleration?
200
A subatomic particle having a positive charge and which is found in the nucleus of an atom.
What is a proton?
200
A fundamental principle stating that energy cannot be created nor destroyed but only changed from one form to another.
What is Conservation of Energy?
200
One of the fundamental states of matter in which molecules do not have fixed volume or shape.
What is gas?
200
A procedure that is carried out and repeated under controlled conditions in order to discover, demonstrate, or test a hypothesis; includes all components of the scientific method.
What is an experiment?
300
A substance that cannot be reduced to a simpler substance by chemical means.
What is a element?
300
A measure of randomness or disorder of a closed system.
What is entropy?
300
A type of simple machine; consists of a rigid bar that pivots about a fulcrum used to transmit and enhance power or motion.
What is a lever?
300
Factor being measured or observed in an experiment.
What is the dependent variable?
400
The property of an object, due to its mass, that causes it to resist any change in its motion unless overcome by a force.
What is inertia?
400
A particle, object, or system that lacks a net change.
What is neutral?
400
A form of energy resulting from the temperature difference between a system and its surroundings.
What is heat?
400
The amount of matter an object contains.
What is mass?
400
A set of objects, organisms, or different parts acting to form a whole.
What is a system?
500
The distance between the crest and the wave.
What is wavelength?
500
A subatomic particle having zero charge, found in the nucleus of an atom.
What is a neutron?
500
The process in which a liquid is converted to its vapor phase by heating the liquid.
What is evaporation?
500
A solid, liquid, or gas that possesses inertia and is capable of occupying space.
What is matter?
500
The event, condition, or factor that can be changed or controlled in order to study or test a hypothesis in a scientific experiment.