Earth,Sun and the Moon

Created by

Ali Walsh

Cards (25)

Earth 
Orbits the Sun every 365.25 days
Year 
The length of time it takes for a planet to orbit the sun
Leap year
A year that has an extra day (366 days), 29th February
Intercalary day 
The name of the day in a leap year
Earth 
Rotates clockwise on its axis
Day 
The length of time it takes a planet to complete one full rotation on its axis
Daytime 
Daylight happens on the half of Earth that is facing towards the sun
Nighttime 
Happens on the half of Earth facing away from the sun
Seasons 
Changes in weather because of the position of Earth in its orbit around the sun/tilt of Earth's axis
Sun path 
The path the Sun appears to take across the sky during the day
Seasons 
One hemisphere is tilted towards the sun while the other leans away
The hemisphere tilted towards the sun receives more direct sun rays, causing an increase in temperature/day length
The varying amount of direct sunlight creates seasons
Summer solstice 
Longest day, 21st June
Winter solstice 
Shortest day, 21st December
Equinox 
When there are equal hours of daytime and nighttime, 21st March and 21st September
Lunar phase 
The 8 different appearances of the moon as it orbits Earth
Waxing 
The appearance of the moon getting larger
Waning 
The appearance of the moon getting smaller
Moon 
Orbits Earth only, clockwise in 27 days
Lunar phases 
New moon
Waxing crescent
First quarter
Waxing gibbous
Full moon
Waning gibbous
Third quarter
Waning crescent
Blue moon 
The rare occurrence of having 2 full moons in the same calendar month
Supermoon 
Occurs when a full moon coincides with the time in the moon's orbit that is closest to Earth
Eclipse 
When the light of the sun is blocked
Solar eclipse 
When the moon passes between Earth and the sun, blocking the light from the sun
Lunar eclipse 
When the Earth passes between the moon and the sun, blocking the light from the sun
Blood moon 
When the moon appears red during a total lunar eclipse