Our Solar System THE INNER PLANETS Mary-Jane Wilkins Consultant Giles Sparrow FRAS BROWN BEAR BOOKS
Where Are the Inner Planets The inner planets are the four planets closest to the Sun in the solar system They are Mercury Venus Earth and Mars Earth’s atmosphere contains air This makes it possible for us to live here 4
All four planets have a layer of gases around them This is called an atmosphere Venus has a very thick one On Mercury and Mars the atmosphere is thin Earth’s is also quite thick These four planets are called the terrestrial planets That means they are like Earth 5
