Today, I went to the Museum of  Natural  History.

The universe is about 15 billion years old and was created during the big bang. And the earth is about 4.6 billion years old.

We can find in the solar system a fixed star, planets, moons, and comets. The planets are earth, Mercury, Venus, Mars, Jupiter, Saturn, Uranus and Neptune. Pluto is no longer a planet. The universe is beautiful.

The earth consists of an inner core, outer core, mantle, and crust.

Teacher said that Beck-du Mountain may disappear 4 years later because it may explode.

Dinosaurs are divided into tyrannosauruses and herbivorous dinosaurs.

When tyrannosaururses eat herbivore dinosaurs,

they defend themselves by using their horns.

Elephants used their trunk like human's hand.

Today was a nice day. The end.

Be careful with your grammar please.