The study of the structure and behavior of the physical and natural world through observation and experiment.
What is science?
100
Proton, Neutron, Electron
What are the parts of an atom?
100
Endothermic and Exothermic Reactions.
What are the types of chemical reactions?
100
Alpha, Beta, Gamma.
What is the forms of radiation.
100
The constant speed that a freely falling object eventually reaches when the resistance of the medium through which it is falling prevents further acceleration
What is terminal velocity?
200
Period, Groups/Families
What are the parts of the periodic table?
200
Synthesis, Decomposition, Replacement.
What are the 3 classes of chemical reactions?
200
Measurement of the amount of radioactive material (usually carbon 14) that an object contains; can be used to estimate the age of the object.
What is radioactive dating.
200
Any push or pull that results in motion or changes an object's direction or speed. F=ma
What is force?
300
The periodic table.
What is a table of the chemical elements arranged in order of atomic number, usually in rows, so that elements with similar atomic structure (and hence similar chemical properties) appear in vertical columns?
300
The law of conservation of mass.
What is a relation stating that in a chemical reaction, the mass of the products equals the mass of the reactants.
300
The time taken for the radioactivity of a specified isotope to fall to half its original value.
What is a half-life?
400
A process in which substances undergo a chemical change.
What is a chemical reaction?
400
The factors that control the rate of chemical reaction.
What is concentration, temperature, surface area, catalysts (enzymes), inhibitors.
400
Radioactive decay.
What is the spontaneous disintegration of a radioactive substance along with the emission of ionizing radiation?
500
The smallest particle of an element.
What is an atom?
500
Radiation.
What is the emission of energy as electromagnetic waves or as moving subatomic particles, esp. high-energy particles that cause ionization.