The four small, dense, rocky planets that orbit closest to the sun.
What are terrestrial planets?
The smallest planet in the solar system.
What is Mercury?
Earth's twin.
What is Venus?
The only planet the can support life.
What is Earth?
The main composition of Mars.
What is dark volcanic rock?
The names of the four terrestrial planets in order by distance from the sun.
What are Mercury, Venus, Earth, and Mars?
The main composition of Mercury.
What is volcanic rock?
The planet with acid rain.
What is Venus?
The only terrestrial planet that is divided into tectonic plates.
What is Earth?
Three physical features of Mars.
What is volcanoes, deep valleys, and canyons?
The average distance between the Sun and Earth.
What is a astronomical unit?
The amount of Earth days that is equal to a day on Mercury.
What is 59 Earth days?
2 physical features of Venus.
What are volcanoes, and craters
The three main things Earth has to support life.
What is water, energy, and oxygen?
What is the main composition of Mars's atmosphere.
What carbon dioxide?
The thing Mercury's atmosphere does not contain.
What is carbon dioxide?
The cause of carbon dioxide in Venus' atmosphere.
What are high temperatures?
Three physical features of the Moon.
What is solidified lava, highlands, and craters.
The cause of wind on Mars.
What are dust storms?
Most of Mercury's volume.
What is Mercury's core?
The average temperature on Venus.
What is 465oC?
The estimated amount of species on Earth.
What is 5 million to 30 million?
The product of chemical breakdown of rocks rich in iron minerals.
What is orange-red dust?