What is the smallest unit of a chemical element that can still retain the properties of that element
Atom
100
What is unit of energy; the amount of heat needed to raise one gram of water one degree Celsius at standard atmospheric pressure
Calorie
100
What is concentration of matter of an object; number of individuals in the same species that live in a given area; the mass per unit volume of a substance in a given area
Density
100
What is factor being measured or observed in an experiment
Dependent Variable
200
What is the peak or highest point on a wave
Crest
200
What is a stable elementary particle that is negatively charged and orbits the nucleus of an atom
Electron
200
What is the process in which a liquid is converted to its vapor
phase by heating the liquid
Evaporation
200
What is one of the fundamental states of matter in which molecules do not have fixed volume or shape
Gas
200
What is the event, condition, or factor that can be changed or
controlled in order to study or test a hypothesis in a
scientific experiment
Variable
300
What is a quality that tends to produce movement or acceleration of a body in the direction of its application; a push or a pull
Force
300
What is a substance that cannot be reduced to a simpler substance by chemical means
Element
300
What is a form of energy resulting from the temperature difference between a system and its surroundings
Heat
300
What is electromagnetic radiation that lies within the visible range
Light
300
What is the factor that is changed in an experiment in order to study changes in the dependent variable
Independent Variable
400
What is the number of cycles or waves per unit time
Frequency
400
What is a subatomic particle having zero charge, found in the
nucleus of an atom
Neutron
400
What is the energy possessed by a body because of its motion
Kinetic Energy
400
What one of the fundamental states of matter with a definite
volume but no definite shape
Liquid
400
What is a procedure that is carried out in order to observe a response caused by a stimulus; not a complete experiment
Investigate
500
What is a force of attraction between two masses
Friction
500
What is a particle, object, or system that lacks a net charge
Neutral
500
What is emission of energy in the form of rays or waves
Radiation
500
What is having the property of attracting iron and certain other materials by virtue of a surrounding field of force
Magnetism
500
What is a set of objects, organisms, or different parts acting to form a whole