15.4 - Earth Brochure

By Kyle Ulrich

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Earth - Our Planet

Earth is diverse in species, climates, and land forms alike. We have so many unique features that set us apart from other planets. For example, seasons, days and nights, oceans and continents, wildlife, evolution, and the perfect spot in our solar system for life to exist.
Earth is approximately 4.543 billion years old, and formed when gravity pulled the gas and dust from the collisions in the giant disc shaped cloud of material together, forming asteroids and small planets that would eventually form the earth.

What Will You Notice Upon Arrival?

Area: 169.9 million miles squared.

Mass: 5.972 x 10^24 kg.

Moons: Just one moon

Unique features: From a distance, you will see storms, oceans, and continents. Upon entering, you can see incredible sights such as the Grand Canyon, Yellowstone, and Stonehenge.

How Does the Planet's Orbital Motions Work?

  • Seasons are caused by the earth's 23.5 degree tilt.
  • Rotation is the earth spinning, which occurs every 24 hours.
  • Revolution is the earth's motion of revolving around the sun, which occurs every 365 days.
  • Our energy comes from the process of nuclear fusion occurring in the sun.
  • Earth and all other objects in the solar system are spherical because all of an object's atoms pull toward's a common center in gravity.
  • A light year is the amount of time it takes light to travel in one year.
  • The force that is responsible for the formation of the solar system is gravity.

What Should You Bring to Earth? Why Should I Travel There?

Depending on where you go, you will want to bring different amounts of clothing. If you are going to cold regions, obviously you're going to want to wear heavier clothing, such as jackets and hats. If you're going to a warm region, then you don't need to wear as much clothing. Short sleeve shirts and shorts are commonly worn in warm weather. Why should you travel to earth? Take a look at these interesting facts:

  • Earth has a powerful magnetic field
  • Earth is the densest planet in the solar system
  • Earth's rotation is gradually slowing
  • It is the largest terrestrial planet in the Milky Way galaxy
  • Earth's atmosphere is 78% nitrogen, 21% oxygen, and trace amounts of other gases.

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