Word Part 1
a huge object in space that gives off heat and light
star
the only star in our solar system
the sun
Why does the pattern of daytime and nighttime repeat each day?
The earth spins on its axis once each day.
Why does the sun appear brighter and bigger than other stars in the galaxy?
The sun is closer to Earth that the other stars.
the length of time it takes for Earth to orbit (revolve around) the sun on time
a year
a period of time that is 24 hours long, including daytime and nighttime
Where are the stars during the daytime?
They are still all around us... They didn't go anywhere!
True or False?
Every December I will see the same constellations in the night sky.
TRUE!
Another word for spin is...
rotate
Another word for revolution is...
orbit
Why can we not see stars in the daytime?
The sun is so bright that it overwhelms thy sky so we can't see the stars.
True or False?
I see the same constellations every night of the year.
FALSE!
something that scientists make to answer questions about the real world
model
an arrangement of stars as seen from Earth
constellation
What causes the yearly pattern of the stars we see in the sky?
How are spin and orbit different?
spin: the earth spins on its axis, causing the pattern of daytime and nighttime (a 24 hour period)
orbit: the earth revolves around the sun, causing the yearly pattern of stars we see (365 days)
the pull between Earth and other objects, which acts without touching
gravity
To move in a regular path around something is known as…
revolving
What effect does gravity have on me throwing a softball to my friend?
Gravity pulls the softball to the ground, or the center of the earth.
Sun; The smallest of these stars; 8 light minutes from Earth
Arcturus; The second largest of these stars; 310 light years from Earth
Betelgeuse; The largest of these stars; 642.5 light years from Earth
When looking at all of the stars above, why does the sun appear the largest and brightest to us on Earth?
The sun is the closest to Earth.