Definitions
Define: Revolution
One full orbit of an object around another object. The Earth revolves around the sun.
What is the shape of the earth?
Define: Constellation
A cluster or group of stars connected by imaginary lines.
The sun rises in the ________________ and sets in the __________________.
East;West
True or False: The sun appears larger and brighter than other stars because it is closer to the Earth.
Define: Rotation
One whole spin of an object on its axis.
In which two ways does the Earth move in space?
The sky is divided into ________ constellations.
88
Where does Sunlight hit all year long because the Earth is tilted on its axis?
Equator
Does the Sun's movement or Earth's movement cause a shadow to move throughout the day?
The Earth's movement
Define: Navigate
To find direction
How would you describe the direction that gravity on Earth pulls objects?
Gravity pulls all objects on Earth towards the center or core of the Earth.
True or False: The stars we see in constellations are very close to us.
False
How much of the Earth is illuminated by the Sun at any time?
Half
What would a shadow would look like at noon and give one reason why.
The length of a shadow changes throughout the day because the Earth rotates in its axis. The length of shadow is the shortest when the sun is directly overhead. This occurs in the middle of the day, or around noon.
What is the name for the imaginary line around which Earth spins?
What causes day and night on Earth?
Earth's rotation around its axis
How many stars can be seen in Orion's belt?
3
We have different patterns of daylight throughout the year. Why does this happen?
It is caused by the tilt of the Earth on its axis as it revolves around the sun. The greatest number of daylight hours occurs during June in New York when the Northern Hemisphere is tilted toward the sun.
True or False: The Northern Hemisphere has summer when the South Pole is tilted toward the Sun.
False
What is the closest bright star to the north celestial pole?
Polaris; the North Star
What causes seasons on Earth?
Earth's revolution around the sun.
True or False: We have multiple stars in our Solar System.
False. We only have one star in our solar system-the Sun
The daily motion of the stars provides evidence that ________________.
Earth rotates on an axis
What happens in a leap year?
Every four years, we add a day to our calendar in February