The Sun
How many Earths fit in the Sun
1,297,126
Is it hot or cold on Mercury?
BOTH! day is over 800 degrees and night is -300
What would it feel like on Venus?
Burning hot!
Why does Earth have different seasons?
Is our moon a satellite?
Yes
Difference between revolving and rotating
revolve: to go all the way around
rotate: to spin (turns night into day)
What does the sky look like from the surface of Mercury?
Black
What is the atmosphere like on Venus?
Thick with lots of poisonous clouds
What is 1 of the 4 layers of the Earth
Crust, mantle, outer core, inner core
What is is atmosphere on the moon?
Does the sun have any satellites?
Yes, everything orbiting the sun
How long is a day (1 rotation) on Mercury?
59 Earth days
What is special about the rotation of Venus?
It's opposite that of most planets
1 of the 7 things that make Earth the only planet that can support life
1. distance from sun
2. size (mass)
3. rotation
4. atmosphere
5.tilt
6. land
7.magnetosphere
What color is the Moon's sky during the daytime?
Black (no atmosphere to reflect different color)
What are sunspots?
Places on the sun that are cooler than the rest of the sun
How long is a year (1 revolution around the sun)?
88 Earth days
Why did astronomers think Venus was Earth's twin?
It's close to the Earth and about the same size
What would happen to all water on Earth if it were further from the sun?
Freeze
How does the Moon affect Earth's oceans?
It pulls on the ocean causing the tides
Explain a solar eclipse
When the Moon gets between the sun and Earth, the Moon can block the sun's light, making it dark even during the day
What kind of planet is Mercury; terrestrial or gaseous?
Terrestrial
Why does Venus go through phases?
Because of its orbit around the sun
What is the most important gas in our atmosphere
Oxygen
Why are there footprints likely visible on the Moon?
There's no wind or rain to wipe them away