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Download What are the inner planets?
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What are the inner planets? The four planets closest to the sun are known as the inner planets. Mercury, Venus, Earth, and Mars Mercury This picture of Mercury was made by joining many smaller photos taken by Mariner 10. No photos were taken of the area that looks smooth. Mercury is the planet closest to the Sun. It is a small planet, a little bigger than Earth’s moon. Mercury is covered with thousands of dents. The dents are shaped like bowls and are called craters. Craters were made when meteorites crashed into Mercury’s surface long ago. Venus Venus is the second planet from the Sun. It is about the same size as Earth, but Venus turns in the opposite direction. Like Mercury, Venus is very hot and dry. Unlike Mercury, Venus has an atmosphere made of thick, swirling clouds. Using the chart, What is one reason people cannot live on Mercury or Venus? Using the chart, how much longer is Venus’ year than Mercury’s year (in Earth days)? Earth Earth, our home, is the third planet from the Sun. It is also the solar system’s largest rocky planet. Earth is the only planet that has liquid water on its surface. In fact, most of Earth’s surface is covered with water. Earth is the only planet in the solar system known to support life. Earth’s Moon Moons are satellites of planets. A satellite is an object that orbits another object in space. Just as planets revolve around the Sun because of gravity, moons revolve around planets. Earth has one large moon. The diameter of the Moon is about one-fourth the diameter of Earth. Mars The fourth planet from the Sun is Mars. The rocks and soil that cover much of Mars contain the mineral iron oxide. This mineral is reddish-brown in color. It is the same material that makes up rust. This has given Mars its nickname, the "Red Planet." How much lighter is a 100 pound person on Mars? Why is the average surface temperature considerably lower on Mars compared to Earth Quiz Time! Let’s see how you do locating the planet! Find the planet This Planet has an atmosphere made of thick, swirling clouds. Earth Venus Mars Oh no! Quick guess again! Great Job Kids! Find the planet This planet is closest to the sun. Earth Mercury Mars Oh no! Quick guess again! Great Job Kids! Find the planet This is the fourth planet from the sun. Earth Venus Mars Oh no! Quick guess again! Great Job Kids! Find the planet This is the largest of the inner planets. Earth Venus Mercury Oh no! Quick guess again! Great Job Kids!
