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Weather
Science class
| Term | Definition |
|---|---|
| weather | the condition of Earth's atmosphere at a particular time and place |
| meteroogists | scientists who study the causes of weatherand try to predict it |
| forecast | a prediction of what the weather will be in the future |
| temperature | the average amount of energy of motion in the molecules of a substance |
| convection | the transfer of heat by movement of fluid |
| humidity | a measure of the amount of water vapor in the air |
| wind | the horizontal movement of air from an area of high pressure to an area of low pressure |
| cumulus | clouds that form less than 2 kilometers above the ground and look like fluffy rounded piles of cotton (c = c) |
| stratus | clouds that form in flat layer (straight) |
| cirrus | wispy feathery clouds made mostly of ice crystals (cirrus=crystals) that form at high levels above about 6 kilometers |
| themometer | an instrument used to measure temperature consisting of a thin, glass tube with a bulb on one end that contains a liquid |
| anemometer | an instrument used to measure wind speed (AAAA big wind!!!) |
| air mass | a huge body of air that has similar temperature , pressure and humidity |
| front | the area where air masses meet and do not mix |
| cold front | when cold air mass pushes against warm air mass (cold air is a bully) |
| warm front | when warm air mass pushes against the cold (warm air is a bully) |
| tornado | a rapidly whirling, funnel-shaped cloud that reaches down from a storm cloud to touch earth surface and leaving a destruction path |
| hurricane | a tropical storm that has winds of one hundred and nineteen km (119 km)per hour or higher typically about 600km acorss |