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Chapter 17 - Moons and Small Solar System Bodies
Terms in this set (22)
Large, dark, flat areas on the Moon believed to be craters formed by large impacts from space that then filled with volcanic lava.
A circular depression on the surface of the Moon caused by the impact of a meteoroid.
The phase of the Moon that occurs when the Moon is on the same meridian as the Sun at 12 noon local solar time.
The Moon viewed when less than one-half of its observed surface is illuminated.
The Moon viewed when more than one-half of its illuminated surface is observed from the Earth.
The Moon when it is 90 degrees east of the Sun and appears as a quarter moon on an observer's meridian at 6PM local solar time.
The phase of the Moon that occurs when the Moon is 180 degrees east of the sun and appears on the observer's meridian at 12 midnight local solar time.
The phase that occurs when the Moon is 270 degrees east of the Sun and appears on the observer's meridian at 6AM local time.
The blocking of light of one celestial body by another.
A region of total darkness in a shadow. During an eclipse, an observer sees a total eclipse.
total solar eclipse
Complete blocking of the Sun, seen by an observer in the umbra.
A semi-dark region of the Moon's shadow. During an eclipse, an observer in sees only a partial eclipse.
total lunar eclipse
The Earth's umbral shadow completely covers the Moon.
The periodic rise and fall of the water level along the shores of large bodies of water.
Large and small chunks of matter that orbit the Sun (usually between Mars and Jupiter), sometimes called minor planets.
Small, interplanetary metallic and stony objects in space before they encounter the Earth.
A metallic or stony object that burns up as it passes through the Earth's atmosphere and appears to be a "shooting star"
A metallic or stony object from the solar system that strikes Earth's surface.
A relatively small object that is composed of rock, dust, and ices and that revolves about the Sun in a highly elliptical orbit.
The cloud of cometary objects believed to be orbiting the Sun far beyond the orbit of Neptune at about 50,000 astronomical units and from which the majority of comets originate.
A doughnut shaped ring of space around the Sun beyond the orbit of Neptune and that extends to well beyond the orbit of Pluto and Eris, containing many short-period comets.
Very small solid particles known as micro-meteroids that exist in the space between planets.
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Chapter 17 Terms
Solar System Test
earth moon and sun
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