Earth
An imaginary line that Earth turns on.
Axis
What is the hottest star in the sky?
blue star
A system made up of the Sun, eight bodies, and other smaller bodies that orbit the Sun.
Solar system
The path an object takes as it moves around the Sun
Orbit
Earth takes approximately 24 hours to complete a ____________.
Rotation
A huge system or group of stars held together by gravity.
galaxy
A large body of rock or gas that moves around a star.
planet
The force that pulls objects or bodies toward other objects or bodies.
gravity
When Earth completes one trip around the Sun.
Revolution
A group of stars that form a pattern in the night sky.
Constellation
Earth's spin on its axis
rotation
When the moon passes into Earth's shadow
Lunar eclipse
Why are Summer days so long and warm?
Because sunlight hits Earth's surface more directly
The Sun is not the biggest and brightest star in the sky, why does it appear to be the biggest and brightest?
It is the closest star to Earth
Earth's orbit around the Sun
Revolution
The system made up of all matter and energy, including galaxies, stars, planets, and their moons.
Universe
How many seasons does Earth have? Name them. What causes Earth's seasons?
4 seasons: Spring, Summer, Fall, Winter
The tilt of Earth on its axis and its orbit around the Sun causes Earth's seasons.
A friend finds the Big Dipper at 7:00pm and takes you out at 10:00pm tp show it to you. It is not in the same place, and your friend says the sky must have moved. Do you agree or disagree, why or why not.
Disagree, The sky does not move. It appears to move because Earth is rotating.
List the 8 planets in our solar system in order, starting with the closest to the Sun.
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
What is the difference between one of Earth's rotations and one of Earth's revolution? What does each cause? How long does each take?
A rotation is when Earth turns on its axis. It takes 24 hours and causes day and night.
A revolution is when Earth makes one trip around the Sun. It takes 365 days and causes a year.