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OA2.1 Understand energy and its conservation OA2.1.1: Identify forms of energy: Light energy, heat energy, chemical energy, nuclear energy, wind energy What is energy? The ability to do work. Energy causes things around us to happen. Yesterday, we talked about some different forms of energy: potential, kinetic, mechanical and electrical. Remember??? Potential energy (stored) Kinetic energy (movement) Mechanical energy (engines) Electrical energy (electrons) Word 1. Light energy Definition Energy in the form of moving waves of light (also know as solar energy) The sun has lots of light energy Word 2. Heat energy Definition Energy in the form of moving molecules Hot objects = more heat energy = molecules moving faster The fire has lots of heat energy Word Definition 3. Chemical Energy stored in molecules energy It is stored in food, fuels and batteries, and is released as other forms of energy during chemical reactions. The gasoline has lots of chemical energy, so does food! Fossil fuels are a type of chemical energy Word 4. Nuclear energy Definition Energy stored in the nucleus of an atom Energy is released when nucleus is broken apart = nuclear fission Nuclear fission takes place in nuclear power plants to make electricity. Nuclear Fission • Fission means “to divide” • Remember that fission has 2 s’s, therefore it splits into TWO parts. States with nuclear power plant(s) Word 5. Wind energy Definition Energy created by the movement of the wind Wind is moving air due to temperature differences on Earth Turbine use wind energy used to create electricity How Uneven Heating of Water and Land Causes Wind Types of Energy!! Light Energy Heat Energy Chemical Energy Nuclear Energy What is it? What is it? What is it? What is it? Energy in the form of moving waves of light Draw a picture: Energy in the form of moving molecules Draw a picture: Energy stored in molecules Draw a picture: Wind Energy What is it? Energy Energy stored in the created by the nucleus of movement an atom of the wind Draw a picture: Draw a picture: