Read the text and choose the correct sentences.

We live on Earth. Earth is a planet that travels in an orbit around the Sun. The Sun is a star. A star is a vast ball of blazing gas. The Sun is much bigger and hotter than a planet. Earth is not the only planet that orbits the Sun. There are seven other planets. The Sun and its eight planets make up the Solar System. The four planets closest to the Sun are called the inner planets. They are hard rocky balls.
Mercury is the closest planet to the Sun. It is the smallest planet. The side of Mercury facing the Sun is hot enough to melt lead.
Venus is about the same size as Earth. It is covered with a thick atmosphere of hot poisonous gas.
Earth is the third planet from the Sun. It is the only planet on which we know there is life.
Mars is smaller and colder than Earth. It has a thin atmosphere and is covered with red rock and dust. It is sometimes called the red planet.

• The Sun is a planet.
• There are eight planets in our Solar System.
• The nearest planet to the Sun is Mercury.
• Each planet is the same.
• The planets closest to the Sun are the hottest.
• Earth is our home planet.
• Venus is covered with red rock and dust.
• The four planets closest to the Sun are called the gas giants.