Our Galaxy
What galaxy is our solar system located in?
the Milky Way galaxy
About how long does it take Earth to complete one full rotation?
24 hours
Why is the Moon visible despite not producing its own light?
It reflects light from the Sun.
How long does it take Earth to revolve around the Sun once?
365.25 days (1 year)
Which tool is used to help you see stars in the night sky?
telescope
Put these in order from smallest to largest:
Milky Way galaxy, Earth, Solar System
Earth - Solar System - Milky Way Galaxy
In a classroom model using a globe and a flashlight, what does the flashlight represent?
the Sun
What phase occurs when Earth is between the Sun and the Moon?
Full Moon
Where does sunlight hit Earth most directly?
the equator
Why do constellations appear to move across the sky during a single night?
Earth rotates on its axis
What is at the center of our solar system?
the Sun
When are shadows usually the longest?
early morning and late afternoon
What happens when the Moon moves between the Sun and Earth?
solar eclipse
What causes the seasons on Earth?
Earth’s tilt on its axis as it revolves around the Sun
Why are some constellations only visible during certain seasons?
Earth’s revolution around the Sun changes our night sky view
What shape is the Milky Way Galaxy?
spiral
Why does the Sun appear to move across the sky each day?
Earth is rotating on its axis.
What mainly causes ocean tides on Earth?
the Moon's gravity
When the Northern Hemisphere is tilted away from the Sun, what season is it there?
winter
Why do constellations appear in the same place in the sky at the same season each year?
Earth follows the same orbit around the Sun each year
Where is our solar system located inside the Milky Way?
in one of the spiral arms
As the Sun appears to move across the sky, shadows change in ______ and ______.
length and direction
Which tides occur when the Sun, Earth, and Moon line up in a straight line?
spring tides
During winter, daylight hours are ______.
shorter
How many stars are in our solar system?
one (the Sun)