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Unit F Vocabulary

Unit F Vocabulary. Howard Middle School Earth Science 6 th grade. Phenomenon – An event related to how the world and universe work. Reproducible – An investigation that can be repeated to give the same or similar results.

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Unit F Vocabulary

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  1. Unit F Vocabulary Howard Middle School Earth Science 6th grade

  2. Phenomenon – An event related to how the world and universe work. • Reproducible – An investigation that can be repeated to give the same or similar results. • Axis – The imaginary line around which an object spins, or rotates.

  3. Plausible – Consistent with evidence. • Rotate/Rotation – To turn or spin around an axis. • Time Zone – Regions that share the same standard time.

  4. Angle – The space between two lines that begin at a common point, measured in degrees. • Equator – An imaginary circle that divides Earth into two halves called the Northern Hemisphere and Southern Hemisphere. • Hemisphere – One half of a sphere.

  5. Orbit – The path an object follows as it revolves around another object. • Revolution – A complete circle made by a planet around a sun or by a moon around a planet. • Revolve – To travel around another object in a circular or elliptical path.

  6. 13. Crescent Moon – The phase of the Moon in which the lit portion of the Moon visible from Earth’s surface is less than a half-circle. 14. Full Moon – The phase of the Moon that occurs about fourteen days after the new Moon in which the complete lighted portion of the Moon is visible from Earth’s surface and appears as a full circle.

  7. First quarter Moon – The phase of the Moon, occurring about seven days after the new Moon, in which the lighted portion of the moon that is visible from Earth’s surface is a half-circle. • Gibbous Moon – A phase of the Moon before or after it is full, when more than half of its disk is illuminated.

  8. Last quarter Moon – The phase of the Moon that occurs about seven days after the full Moon in which the lighted portion of the Moon that is visible from Earth’s surface is a half-circle. • Lunar cycle – The revolution of the Moon around Earth that produces the changing phases of the Moon.

  9. New Moon – The phase of the Moon, occurring about 14 days after the full Moon, in which none of the lighted portion of the Moon is visible from Earth’s surface. • Waning – The phases of the Moon when the illuminated portion visible from Earth is decreasing (between the full and new Moon).

  10. Waxing – The phases of the Moon when the illuminated portion visible from Earth is increasing (between the new and full Moon). • Extreme tide – A tide that is unusually high or low. • High tide – The time when the tide reaches its highest level.

  11. Low tide – The time when the tide reaches its lowest level. • Tides – A periodic change in sea level that is caused by the rotation of Earth and the gravitational attraction between Earth and the Moon and Sun. • Leap year – A year on Earth that has one extra day (February 29). Every fourth year is a leap year.

  12. Solar – Having to do with the Sun.

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