Definitions
Exo means
outside
Cooking an egg is an example of what type of reaction?
endothermic
exothermic ___________ energy.
releases
Compound
What is any substance composed of identical molecules consisting of atoms of two or more chemical elements.
As heat leaves an area, the temperature will ________
drop
inside
A candle flame is an example of which type of reaction?
exothermic
An endothermic reactions will ______ their surroundings because the reactions draw _______ energy into themselves.
cool
heat/energy
Photosynthesis is this kind of reaction
What is an endothermic reaction.
There must be heat ______ from the system to cook an egg.
Thermic relates to
heat
A campfire is an example of what type of reaction?
exothermic
a reaction occurs when two or more _________ interact with each other.
molecules
product
a substance produced by a chemical reaction
Those sitting around a campfire will become warm as a result of _______ heat.
released
Endothermic means
when heat is absorbed into a system from its surroundings
Evaporation is an example of what type of reaction?
endothermic
Exothermic reactions make the surrounding environment __________ since energy is ________.
hotter
released
reactant
a substance present at the start of a chemical reaction
Exothermic reactions contain _______ energy because they are removed from the _______ bonds in the reactions.
less
chemical
Exothermic means
when heat is being released from the system to its surroundings.
Photosynthesis is an example of what type of reaction?
endothermic
The Law of Conservation of Energy
What is energy cannot be created or destroyed. Can change forms, but the total energy remains the same.
Independent Variable
What is the variable that is manipulated or changed in an experiment.
product
reactants