Our World- Space

We learned that there are billions stars that we see at night. But there is one that shines during the day- SUN. The sun is the closest star to Earth. It is so bright that we can't see other stars during the day. Every day Earth turns around. When continent where we live faces sun, it is day. When our side turns away from the sun, it is night. That is when we see other stars which are very very far away for Earth.

Stars are made of gas. They are hot! Stars have colors, too. The sun is a yellow- orange star. Hard to believe, but blue stars are the hotter than the sun. Red starts are not as hot as the sun. 

There are 8 Planets- Earth, Mercury, Venus, Mars, Jupiter, Saturn, Uranus and Neptune. There is song that helps us to learn the names.

(TTTO 'Twinkle, twinkle little star") I know the planets one by one
Starting with the one that's closest to the sun.
Mercury, Venus, Earth and Mars,
Are the first four among the stars.
Jupiter, Saturn, Uranus, Neptune
Are the next planets in my tune.

We live on the planet that has air and water on its surface. If the Earth was closer to the sun, the oceans would boil away. If it was farther away, the oceans would freeze. The Earth has a moon. It revolves around Earth, it doesn't make light but reflects sun light. There is no atmosphere on Moon. American astronauts were the first one to explore it and bring examples of moon rocks to scientists to study. 
Another thing that we learn about Earth is that there is force that pulls all things down, it is GRAVITY! In the class we experimented with different things to see how gravity pulls them down. Then how does a rocket ship fight gravity? Very powerful engines send it into space. In space there is no gravity. Everything that is not tied, strapped or held floats in space. Learning about other planets characteristics, we decided that none of them but Earth has everything that living things need – air, water, land, gravity and Sun light.