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Weather & Water 1
Investigation 1 Vocab for FOSS Science 6th-grade
Question | Answer |
---|---|
Star | a large, hot ball of gas radiating huge amounts of energy |
Carbon Dioxide | a greenhouse gas in Earth's atmosphere. Carbon dioxide is created by natural and human-made processes. |
Nitrogen | a colorless, odorless gas that makes up about 78 percent of Earth's atmosphere |
Water Vapor | the gaseous state of water; a variable gas that is found in Earth's atmosphere |
Oxygen | a gas that makes up about 21 percent of the Earth's atmosphere |
Ozone | a thin form of oxygen that forms a thin layer in the stratosphere |
Mass | the amount of matter in an object or sample |
Permanent Gases | a gas in the atmosphere for which the relative amount stay constant. Oxygen and nitrogen are permanent gases. |
Variable Gases | an atmospheric gas whose amount changes based on the environment. Carbon dioxide, methane, water, and ozone are variable gases. |
Greenhouse Gas | a gas that absorbs and radiates energy in the atmosphere, trapping thermal energy |
Thermal Energy | radiant energy that heats |
Photosynthesis | a process used by plants and algae to make sugar (food) out of light, carbon dioxide, and water |
Stratosphere | the layer of the atmosphere above the troposphere. The ozone layer is in the stratosphere. |
Absorbs | to soak up or take in |
Methane | a variable gas in the atmosphere; a greenhouse gas |
Troposphere | the layer of the atmosphere that begins at Earth's surface and extends upward for an average of 15 kilometers. |
Season | a period of the year identified by changes in hours of daylight and weather |
Air Pressure | the force exerted on a surface by the mass of air above it; also called atmospheric pressure |
Weather Factors | a variable property of weather, such as temperature, humidity, air pressure, or wind |
Jet Stream | a narrow band of fast-moving high-altitude wind flowing west to east that affects weather conditions on Earth |
Mesosphere | the layer of the atmosphere above the stratosphere |
Thermosphere | the layer of the atmosphere above the mesosphere |
Solar Energy | radiant energy from the Sun |
Exosphere | the layer of the atmosphere above the thermosphere. The exosphere marks the transition from the atmosphere to space. |