| A | B |
|---|
| air pressure | weight of the air pressing down on Earth |
| atmosphere | all the gases that make up our air |
| atom | smallest part of everything in the world |
| climate | the normal weather for an area over a long period of time |
| condensation | the ability to turn a gas into a liquid by removing heat |
| conduction | the transfer of heat between two objects that are touching |
| convection currents | areas of warm air rising from the surface of the Earth |
| convection | the transfer of heat through a gas or liquid that is in motion |
| Coriolis effect | the curving motion of our wind around the Earth as it rotates on its axis |
| energy | the ability to do work |
| evaporation | the complete separation of molecules from each other from a liquid to a gas |
| freezing | ability of molecules to stick to each other to turn a liquid into a solid by removing heat |
| H2O | the chemical formula for water |
| high air pressure | areas where there is much more air crammed into a small part of the atmosphere |
| low air pressure | area where there is very little air crammed into a small part of the atmosphere |
| melting | the ability to make molecules slide around each other to make a fluid from a solid by adding heat |
| meteorologists | scientists who study how the sun warms the Earth which causes our weather |
| molecule | two or more atoms joined together |
| radiation | the main transfer of heat from the sun to the Earth |
| season | one of four parts of the year that have (roughly) the same temperature and amount of daylight and nighttime |
| states of matter | different forms of matter; a solid, liquid, or gas |
| summer solstice | the day in the Northern Hemisphere where we receive the most light in one day |
| water vapor/steam | the gaseous state of matter for water |
| weather | our day-to-day patterns of temperature, wind, precipitation, etc. |
| wind | air in motion |
| winter solstice | the day of the year in the Northern Hemisphere where we receive the least amount of light in one day |
| work | pushing or pulling something to make it move |
| When water freezes | The water will change from liquid to solid |
| When ice melts | The water will change from solid to liquid |
| When water evaporates (evaporation) | The water will change from liquid to gas |
| When water condenses (condensation) | The water will change from gas to liquid |
