The runaway greenhouse effect of its atmosphere.
What is the Oort Cloud made up of?
Trillions of comets
What type of orbit do comets have?
An elliptical orbit.
What is the word for a meteoroid once it starts burning from Earth's atmosphere?
A meteor.
Which planet is pictured at 1?
Mercury
This planet has a huge storm called the Great Red Spot
Jupiter
What is the Kuiper Belt made of?
Left over materials from the formation of the solar system.
Where do comets originate from?
The Oort Cloud and Kuiper Belt.
What do you call a shooting star?
Which planet is pictured at 4?
Mars.
This planet has the largest temperature range from day to night.
Mercury
Which region has many minor planet-sized or smaller objects orbiting beyond Neptune?
Kuiper Belt
Comets have two tails, which one follows the comets orbit?
The dust tail.
If you were out for a walk and a rock fell from the sky, landing at your feet, what sequence describes how the rock changed as it fell?
meteoroid, meteor, meteorite.
Which planet is pictured at 8?
Neptune.
Which planets have at least 60 moons?
Jupiter and Saturn.
What is the shape of the Oort Cloud?
It is a sphere.
What is the middle, icy and rocky part of a comet called?
The nucleus.
What is the difference between a meteoroid and an asteroid?
Their size.
Which planet is pictured at 6?
Saturn.
Landforms that look like dry riverbeds.
Where is the Oort Cloud located?
It surrounds our solar system.
The ion tail blows away from the comet due to...
Solar Winds
What is a meteorite?
A meteoroid that made it to Earth's surface.
Which two planets spin retrograde?
Venus and Uranus.