Day and Night
How long does it take Earth to have one rotation?
24 hours
How long does it take the Earth to REVOLVE around the Sun and go through all seasons?
365 days
What is the lunar cycle?
The sunlit portion of the Moon we can see from Earth
What are the two types of eclipses
Lunar and Solar eclipses
What is light
a type of radiation visible to the human eye
At what degree is Earth's axis tilted at?
23.5
During summer our part of Earth is tilted _____ the sun, during winter our part of Earth is tilted ______ from the sun.
toward, away
How long does the lunar cycle take ,one full cycle,?
27-30 days
During a solar eclipse, the moon passes between what?
Earth and the sun
How many properties of light are there
7
What causes day and night?
Earth rotating on its axis
Do the Northern and Southern Hemispheres experience the same seasons?
No, they are flip flopped so when its Fall in the Northern, it is Spring in the Southern
What causes Moon phases?
The alignment of the Sun, Moon, and Earth
During a lunar eclipse the earth passes between what?
The Sun and the Moon
Where can light come from?
(Property 2) a natural source or artificial source
What way does or Earth rotate?
counter clock wise
What causes seasons?
The seasons are caused by the tilt of the Earth's axis away or toward the sun as it travels on its yearly trip around the sun.
How many moon phases are there?
8
What is an umbra?
The space where the earth blocks the sun’s light from reaching the moon.
How fast does light travel
up to 300,000 km/s
Why do some places on Earth have shorter days or longer days than others?
Direct and indirect light from the sun
Earths axis pointing in the same direction the whole year causes what.....?
This causes seasons to occur at different times and different places of the year
Why does the Moon’s appearance change throughout the month?
The Moon revolves around the Earth and the light from the Sun reflects off of it differently in different positions so it will appear to Earth differently throughout the month.
What is a penumbra?
the space where the moon partially blocks light
Objects that absorb light appear what?
Black