WHAT IS ENERGY? ENERGY is the ability to do work.
Let’s look at some examples to help better understand the forms of ENERGY and their relation to work. Plants use the sun’s energy to grow and produce oxygen. A radio uses energy to produce sound. A mill uses energy to grind grain.
HUMANS use energy in everything they do. Can you say things in which we use energy? Humans obtain resources from the Earth to do these activities. ENERGY can be made from energy RESOURCES.
WHAT IS A NATURAL RESOURCE? CLASSIFICATION A natural resource is a material that comes from the Earth. RENEWABLE RESOURCES ALTERNATIVE RESOURCES NON-RENEWABLE RESOURCES
RENEWABLE RESOURCES What do you think a renewable resource is? Renewable resources regenerate or can be replaced in a short time period.
WOODANIMALS LIVING THINGS WATERSOIL NON-LIVING THINGS FOOD GARBAGE
ALTERNATIVE RESOURCES What do you think an alternative resource is? Alternative resources are all renewable but they do not need regeneration. SUNWINDWAVES
NON-RENEWABLE RESOURCES What do you think is a non-renewable resource? Non-renewable energy resources cannot be replaced once they are used.
URANIUM OIL: Petroleum and Diesel COAL NATURAL GAS FOSSIL FUELS
GAME: “THINK LINK” EXAMPLES: The Sun and Wind are alternative resources. Natural gas and coal are non-alternative resources. THAT’S RIGHT THAT’S WRONG