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Green city Challenge
| Question | Answer |
|---|---|
| What are the three r's of sustainability? | Reduce, Reuse, Recycle |
| What are three benefits of recycling? | The materials don't go in a landfill, raw materials aren't consumed, and energy and costs are saved from not having to obtain new materials. |
| A ________ is a location that is outfitted with special materials to contain our trash. | landfill |
| A landfill can collect the gases that are a byproduct of decomposing garbage and use these gases as fuel for __________ _________. | generating electricity |
| What are fossil fuels? | Fossil fuels such as coal, oil and natural gas, formed over millions of years from the remains of ancient plants and animals. |
| Name three fossil fuels. | Coal,oil and gas |
| What is the difference between a renewable resource and a non renewable resource? | Renewable resources are sources of energy theater constantly replenished. Non-renewable resources are consumed as they are used. They took millions of years to form teh decaying remains of plants and animals. |
| ______ is the ability to do work. | Energy |
| Work is... | moving an object across a distance. |
| _________ is the movement of heat between objects that touch each other. | Conduction |
| _______ are materials that allow heat energy to pass through them. | Conductors |
| __________ are materials that do not allow heat to move through them easily. | Insulators |
| Convection is... | the movement of heat energy through liquids and gases in currents. |
| Radiation is... | heat energy that moves through space. |
| Temperature is... | the average speed of particles in a substance. |
Created by:
crafter16
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