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7I Energy
Key words
Term | Definition |
---|---|
Balanced diet | Eating a variety of foods |
Diet | The food you eat |
Energy | Something that allows movement or change |
Joule | Unit for energy (J) |
Kilojoule | 1000 J |
Nutrient | Substance needed in the diet |
Atomic energy | Energy stored inside of atoms (nuclear energy) |
Chemical energy | Energy stored in bonds between atoms |
Elastic potential energy | Energy stored in stretch or shape (strain energy) |
Gravitational potential energy | Energy stored in height |
Kinetic energy | Energy stored in moving objects |
Law of conservation of energy | Energy cannot be created nor destroyed, but transferred |
Biofuel | Fuel made from animal or plant material |
Coal | Fossil fuel from remains of plants (solid) |
Oil | Fossil fuel from remains of plants and animals (liquid) |
Natural gas | Fossil fuel from remains of plants and animals (gas) |
Electricity | Energy stored in moving electrons |
Fossil | Remains of plants and animals preserved using in sedimentary rock |
Fuel | Storage of energy that is easy to access |
Fuel cell | A machine that combines hydrogen and oxygen gases to produce electricity |
Non-renewable | An energy resource that will run out |
Renewable | An energy resource that will not run out |
Uranium | A radioactive element used as a nuclear fuel |
Geothermal power | Generating electricity from the heat of underground rocks |
Hydroelectric power | Generating electricity from the movement of falling water |
Photosynthesis | Process where plants convert light energy to food |
Solar cell | Panels that convert light energy to electricity directly |
Solar panel | Panel that heats water from the Sun’s heat |
Solar power station | Uses solar panels to create steam to generate electricity |
Wind turbine | Generating electricity from wind |
Climate change | Changes in weather patterns due to global warming |
Efficiency | Description of how much waste is created |