Term
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Definition
| The Sun and the objects that move about it, including planets, moons, and asteroids. P17 |
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Term
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Definition
| The path an object makes around a central object, such as a planet around the Sun. P17 |
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Term
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Definition
| A body that orbits a larger object. P18 |
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Term
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Definition
| An imaginary line that runs from the North Pole through Earth’s center to the South Pole. P19 |
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Term
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Definition
| One complete spin of Earth on its axis. P19 |
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Term
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Definition
| One complete orbit around the sun. P19 |
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Term
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Definition
| The line of attitude located at 66.5 degrees north of the equator. P20 |
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Term
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Definition
| The line of attitude located at 66.5 degrees south of the equator. P20 |
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Term
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Definition
| The days when the Sun’s vertical rays are farthest from the equator. P21 |
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Term
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Definition
| The line of latitude that is 23.5 degrees north of the equator. P21 |
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Term
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Definition
| The line of latitude that is 23.5 degrees south of the equator. P21 |
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Term
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Definition
| The two days of the year when the Sun’s rays strike the equator directly. P21 |
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Term
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Definition
| The layers of gases that surrounds Earth. P22 |
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Term
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Definition
| A form of oxygen in the atmosphere that helps protect Earth from harmful solar radiation. P22 |
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Term
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Definition
| The gaseous form of water. P23 |
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Term
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Definition
| The circulation of water from Earth’s surface to the atmosphere and back. P23 |
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Term
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Definition
| The process by which heated water becomes water vapor and rises in to the air. P24 |
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Term
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Definition
| The process by which water changes from a gas into tiny liquid droplets. P24 |
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Term
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Definition
| The process by which water falls back to Earth. P24 |
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Term
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Definition
| Any smaller stream or river that flows into a larger stream or river. P25 |
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Term
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Definition
| The water from rainfall, rivers, lakes and melting snow that seeps into the ground. P25 |
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Term
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Definition
| The gently sloping underwater land surrounding each continent. P25 |
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Term
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Definition
| The shapes on the Earth’s surface. P28 |
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Term
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Definition
| A nearly flat area on the Earth’s surface. P28 |
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Term
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Definition
| An elevated flatland on Earth’s surface. P28 |
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Term
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Definition
| A neck of land connecting two larger land areas. P28 |
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Term
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Definition
| Land bordered by water on three sides. P28 |
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Term
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Definition
| The theory that Earth’s surface is dived into several major, slowly moving plates of pieces. P28 |
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Term
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Definition
| The inner, solid part of Earth. P28 |
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Term
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Definition
| The liquid layer that surrounds Earth’s core. P28 |
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Term
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Definition
| The outer, solid layer of Earth. P28 |
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Term
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Definition
| Melted rock in the upper mantle of Earth. P28 |
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Term
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Definition
| Magma that has broken through the crust to Earth’s surface. P29 |
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Term
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Definition
| Earth’s large landmasses. P29 |
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Term
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Definition
| The movement of one of Earth’s heavier tectonic plates underneath a lighter tectonic plate. P29 |
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Term
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Definition
| Sudden, violent movement along a fracture within Earth’s crust. P29 |
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Term
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Definition
| A fractured surface in Earth’s crust where a mass of rock is in motion. P31 |
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Term
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Definition
| Earth’s single, original super-continent from which today’s continents were separated. P31 |
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Term
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Definition
| The process of breaking rocks into smaller pieces through heat, water, or other means. P31 |
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Term
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Definition
| The movement by water, ice, or wind of rocky materials to another location. P32 |
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Term
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Definition
| A fan-shaped landform created by deposits of sediment at the base of a mountain. P32 |
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Term
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Definition
| A landform of level ground built by sediment deposited by a river or stream. P32 |
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Term
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Definition
| Landforms created by the deposits of sediment at the mouths of rivers. P32 |
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Term
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Definition
| Large, slow-moving sheets or rivers of ice. P33 |
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