Solar System
The universe is everything that has matter, energy, and _______________.
space
Objects in space move and interact as _________.
Systems
Can you ever be standing still?
No
The spinning of Earth is called its ___________.
Rotation
The path that Earth follows around the Sun is called its _________.
Orbit
The universe is approximately 13.77 ______ years.
a. million
b. billion
c. trillion
b. billion
When we say, "solar system", we are referring to all the objects that orbit around the _________.
sun
Earth revolves around the _________.
sun
How many hours does it take Earth to make a full rotation?
24
Is the sun a star?
yes
What is the group of celestial objects that move together throughout the universe?
Galaxies
A solar system typically consists of at least one _______.
star
It takes a little more than ______ days for Earth to make a complete trip around the sun.
365
If one person is experiencing night on one side of the Earth, what is another person experiencing on the other side of the Earth?
day
Life on _____________ depends on the sun.
What is our home galaxy?
The Milky Way
How many planets are within our solar system? (not including dwarf planets)
8
How many days does it take Mercury to orbit the sun?
a. 100
b. 50
c. 87
c. 87
The Earth moves in two main ways:
1. Rotation
2. ____________
Revolution
The sun if formed by a cloud of _______ and dust.
gas
Our ______ _________ is situated on one of the outer arms of the Milky Way.
Solar System
all objects orbit the sun due to the powerful __________ pull of the sun.
gravitational
Earth rotates on its _________.
axis
Earth's revolution, combined with the tilt of its axis, causes ____________
seasons
The Sun blows a steady stream of particles out from its outer layers, called the _________ __________.
Solar Wind