Mercury
Is Mercury smaller or bigger than Earth?
Smaller-
Mercury is smaller than half the size of Earth!
What number planet is Venus in the solar system?
2nd
What number planet is earth in the solar system?
3rd
What number planet is Mars in the solar system?
4th!
information collected that can be used to support explanations
Data
How long is year on Mercury in earth days?
88
How long is year on Venus in earth days?
225
How long is year on earth is earth days?
365
How long is year on Mars is earth days?
687
a planet that has a hard rocky surface
terrestrial planet
What is Mercury's surface covered with?
Craters
What is most prominent on Venus' surface?
Volcanos
What on earth allows for living organisms?
Liquid Water
What did scientists discover in 2015 happens on the surface of Mars intermittently?
Liquid water flows
Double Points
Telescope on earths surface; telescope in outer space
Ground-based telescope; space telescope
How long is a day on mercury in earth days?
59
How long is a day on Venus in earth days?
243
How long is day on earth in earth days?
24 hours
How long is day on Mars in earth days?
24 hours and 39 minutes
the average distance at which the earth revolves around the sun
orbital radius
Why is Mercury not the hottest planet?
Mercury doesn't have any atmosphere, so the heat from the sun goes right back into space
Why can you not see the surface of Venus with an ordinary telescope?
It is covered with thick clouds of water vapor and sulphuric acid.
How does the size of earth compare to the rest of the terrestrial planets?
It's the largest
Double Points
What is located beyond Mars? What is the largest object in this area?
The asteroid belt; Ceres
the distance from a planets core to the outer edge of its atmosphere
planetary radius