Set: Science 2

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All 30 Terms

Term Definition
electromagnetic spectrum arrangment of electromagnetic wavew according to their wavelengths
refracting telescope optical telescope that uses a double convex lens to bend light and form an image at the focal point
reflecting telescope optical telescope that uses a concave mirror to focus light and form an image at the focal point
observatory building that can house an optical telescope; often has a dome-shaped roof that can be opened for viewing
radio telescope collects and records radio waves traveling through space; can be used day ro night under most weather conditions
rocket special engine that can work in space and burns liquid or solid fuel
satellite any natural or artificial object that revolves around another object
orbit curved path followed by a satellite as it revolves around an object
space probe instrument that travels far into the solar system and gathers data to send back to Earth
Project Mercury first step in the U.S. program to reach the Moon; orbited a piloted spacecraft around Earth and broght it back safely
Project Gemini second stage in the U.S. program to reach the Moon, in which an astronaut team connected with another spacecraft in orbit
Project Apollo final stage in the U.S. program to reach the Moon, in which Neil Armstrong was the first human to step onto the Moon's surface
space shuttle reusable spacecraft that can carry cargo, astronauts, and satellites to and from space
space station large facility with living quarters, work and exercise areas, and equipment and support systems for humans to live and work in space and conduct research
sphere a round, three-dimensional object whose surface is thesame distance from its center at all points; Earth is a sphere that bulges somewhat at the equator and is slightly flattened at the poles
axis imaginary vertical line that cuts throught the center of Earth and around which Earth spins
rotation spinning of Earth on its imaginary axis, which takes about 24 hours to complete and causes day and night to occur
revolution Earth's yearlong elliptical orbit around the Sun
ellipse elongated, closed curve that describes Earth's yearlong orbit around the Sun
solstice twice-yearly point at which the Sun reaches its greatest distance north or south of the equator
equinox twice-yearly time-each spring and fall-when the Sun is directly over the equator and the number of daylight and nighttime hours are equal worldwide
moon phase change in appearance of the Moon as viewed from the Earth, due to the relative positions of the Moon, Earth, and Sun
new moon moon phase that occurs when the Moon is between Earth and the Sun, at which point the Moon cannot be seen because its lighted half is facing the Sun and its dark side faces Earth
waxing describes phases that occur after a new moon, as more of the Moon's lighted side becomes visible
full moon phase that occurs when all of the Moon's surface facing Earth reflects light
waning describes phases that occur after a full moon, as the visible lighted side of the Moon grows smaller
solar eclipse occurs when the Moon passes directly between the Sun and Earth and casts a shadow over part of Earth
lunar eclipse occurs when Earth's shadow falls on the Moon
maria dark-colored, relatively flat regions of the Moon formed when ancient lava reached the surface and filled craters on the Moon's surface
impact basin a hollow left on the surface of the Moon caused by and object striking its surface

Set Information

Terms 30
Creator bugatti123
Created May 18, 2008
Group Wesleyan 8th Grade
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Most Missed Words

  1. ellipse → elongated, closed curve that describes Earth's yearlong orbit around the Sun - 3 misses
  2. moon phase → change in appearance of the Moon as viewed from the Earth, due to the relative positions of the Moon, Earth, and Sun - 3 misses
  3. refracting telescope → optical telescope that uses a double convex lens to bend light and form an image at the focal point - 2 misses
  4. orbit → curved path followed by a satellite as it revolves around an object - 2 misses
  5. Project Gemini → second stage in the U.S. program to reach the Moon, in which an astronaut team connected with another spacecraft in orbit - 2 misses
  6. sphere → a round, three-dimensional object whose surface is thesame distance from its center at all points; Earth is a sphere that bulges somewhat at the equator and is slightly flattened at the poles - 2 misses
  7. waning → describes phases that occur after a full moon, as the visible lighted side of the Moon grows smaller - 2 misses