Types of Energy and Types of Energy and Chemical ReactionsChemical Reactions

Heat energy: Energy that is transferred Heat energy: Energy that is transferred from one substance to another due to a from one substance to another due to a difference in temperature.difference in temperature.

Light Energy: energy that comes from the Light Energy: energy that comes from the sun. Chemical reactions give off light.sun. Chemical reactions give off light.

Sound: Noise that is given off during a Sound: Noise that is given off during a chemical reaction.chemical reaction.

Chemical ReactionsChemical Reactions

Photosynthesis: Light energy is converted Photosynthesis: Light energy is converted into chemical energy. Light energy is into chemical energy. Light energy is used to convert water and COused to convert water and CO22 into O into O22 and and sugar.sugar.

Respiration: The opposite of Respiration: The opposite of photosynthesis. Sugar and Ophotosynthesis. Sugar and O22 is is converted into Hconverted into H22O and COO and CO22

Rusting: when air reacts with water and Rusting: when air reacts with water and iron.iron.

Combustion: a compound reacts with an Combustion: a compound reacts with an oxidizing element, such as oxygen.oxidizing element, such as oxygen.

Products: the substances formed from a Products: the substances formed from a chemical reaction.chemical reaction.

Reactant: the starting materials in a Reactant: the starting materials in a chemical reaction.chemical reaction.

^ ^^ ^

Reactant ProductReactant Product

6H2O + 6CO2 ----------> C6H12O6+ 6O2

Products: the substances formed from a Products: the substances formed from a chemical reaction.chemical reaction.

Reactant: the starting materials in a Reactant: the starting materials in a chemical reaction.chemical reaction.

^ ^^ ^

Reactant ProductReactant Product

6H2O + 6CO2 ----------> C6H12O6+ 6O2