Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Unit6EMS6thgr
Unit 6 Earth, Moon, Sun 6th grade
| Term | Definition |
|---|---|
| crescent moon | a moon phase that looks like less than half a circle from Earth |
| exomoon | a moon outside our solar system |
| exoplanet | a planet outside our solar system |
| full moon | a moon phase that looks like a full circle from Earth |
| gibbous moon | a moon phase that looks like more than half a circle from Earth |
| illuminate | to shine light on an object and make it visible |
| lunar eclipse | when the Moon is completely dark |
| model | an object, diagram, or computer program that helps us understand something by making it simpler or easier to see |
| moon | a rocky sphere that travels around a planet |
| moon phase | the shape of the illuminated part of the Moon as it appears from Earth |
| new moon | a moon phase in which the Moon is not visible from Earth |
| orbit | the nearly circular path a smaller object (like the Moon) travels around a larger object (like Earth) |
| pattern | something we observe to be similar over and over again |
| quarter moon | a moon phase that looks like a half-circle from Earth |
| scale | the relative size of things |
| solar system | the sun, the planets that orbit the sun, and other objects that orbit the sun |
| sun | the star that is the main source of light at the center of our solar system |
| terminator | the border between light and dark on the Moon |
| year | the amount of time it takes for a planet to complete one orbit around a star or stars (Earth = 365.24 days) |
| solar eclipse | Earth-Moon-Sun in syzygy; the Sun is blocked by the moon |
| spring tide | greatest difference between high and low tide when Earth-Sun-Moon are aligned for New Moon and Full Moon |
| neap tide | least amount of difference between high and low tide when Earth-Sun-Moon are at 90º for quarter moons |
| constellation | a group of stars that form a recognizable pattern and appear in the sky at the same time each year |
| equinox | close to 12 hours daylight/12 hours nighttime (start of autumn or spring) |
| solstice | unequal amounts of day/night (most hours of daylight start of summer, most hours of darkness start of winter) |
| galaxy | a group of solar systems |
| asteroid | irregularly shaped rocks that revolve around the Sun |
| gravity | the force that attracts a body toward the center of Earth, or toward any other physical body having mass |
| ray | straight line in which all light travels |
| day | the amount of time it takes for a planet to complete one rotation on its axis (Earth = about 24 hours) |
| syzygy | 3 celestial objects(objects in space) perfectly aligned |
Created by:
akguidry
Popular Science sets