The Sun
The Sun is made up mainly of _______ and ________.
Hydrogen and Helium
What is the name of the star that is closest to Earth?
The Sun!
The moon is Earth's only natural ___________
Satellite
How long does it take Earth to complete one rotation around its axis?
24 hours
The Greenhouse Gas effect works to __________ the Earth
Heat/warm
What planet does this describe?
Axial Tilt: 23.5
Appearance: Blue/Green, with some white clouds
Earth
One revolution of the Earth around the Sun takes ___________ days
365.25 days
Our Sun is a(n) ________________ star
Yellow dwarf, average sized
True or false: one rotation of the Moon takes 27 days, and one revolution of the Moon takes 29.5 days
False.
One rotation = 27 days
One revolution = 27 days
One lunar cycle = 29.5 days
How old is the Earth?
A) 3.69 billion years old
B) 6.87 billion years old
C) 4.54 billion years old
D) 10.43 billion years old
C) 4.54 billion years old
8 minutes
True or false: Solar flares give us the Northern Lights
False-- solar WINDS give us the Northern Lights
Energy produced by the Sun is known as ________ ______________.
Solar radiation
The fate of an average star like our Sun is a ______________ star.
White dwarf (black dwarf)
The gravitational pull of the Moon on Earth's oceans results in...
tides
We have 4 seasons because of the ______________ of the Earth
axis / tilt
Earth absorbs ____________ sunlight, and reflects ___________ sunlight
Absorbs 70% ; Reflects 30%
Compared to the Earth's solar system, the universe is...
A.) Older and Larger
B.) Older and Smaller
C.) Younger and Larger
D.) Younger and Smaller
A
A ______ ____________ occurs when the Moon passes between the Sun and the Earth.
solar eclipse
When stars age, they cool and expand into a _______ __________.
Red giant/ red supergiant
A ______ _________ occurs when the Earth passes between the Sun and the Moon
Lunar eclipse
Earth's axis points directly at __________________.
the North Star (Polaris)
Name 3 greenhouse gases.
CO2, CH4, NO, water vapour, ozone
Why can we only see one side of the moon?
The Sun has ______ inner layers and ________ atmospheric layers
3, 3
Can anyone name the layers?
The fate of a massive star is either a _________________ or a ________________.
Neutron star, black hole
Name 3 of the moon phases: (show picture)
Since it is Winter, the Earth is currently tilted :
A) TOWARDS the Sun
B) AWAY FROM the Sun
B) Away from
The type of energy that is re-emitted from Earth that gets trapped in our atmosphere is:
A) UV
B) IR
C) Visible Light
IR (heat)
What is Mr. Hawman's favourite star?
Betelgeuse