Earth

1. First slide is the AUE logo, the students’ names with IDs and name of planet.

2. Size of the planet

Earth's Size

As the largest of the terrestrial planets, Earth has an estimated mass of 5.9736 × 1024 kg. Its volume is also the largest of these planets at 108.321 × 1010km3.

3. Location in the solar system and distance from the Sun

The earth is located after Mercury and Venus from the sun. The distance from Earth to the Sun is known as one astronomical unit. One AU is about 150,000,000 km. The astronomical unit is used to measure the distances is the solar system.

4. How does it move around the Sun it its orbit?

5. Elliptical orbit

6. Speed of revolution around the Sun; its year, its velocity around the Sun.

7. How does it move around itself? ; speed of rotation around itself; its day

8. Distance from the Earth, Could we observe it from the Earth?

9. Appearance

10. Density

The density of the Earth is 5.513 g/cm3. This is an average of all of the material on the planet. Water is much less dense than iron, hence an average is needed for ease of use. Earth is the most dense planet in the Solar System; however, if gravitational compression where factored out, the second most dense planet, Mercury, would be more dense. The density of Earth is calculated by dividing the planet’s mass by its volume, then simplifying from kg/km to g/cm cubed.

11. Chemical composition

The mass of the Earth is approximately 5.98×1024 kg. It is composed mostly of iron (32.1%), oxygen (30.1%), silicon (15.1%), magnesium (13.9%), sulfur (2.9%), nickel (1.8%), calcium (1.5%), and aluminium (1.4%); with the remaining 1.2% consisting of trace amounts of other elements. Due to mass segregation, the core region is believed to be primarily composed of iron (88.8%), with smaller amounts of nickel (5.8%), sulfur (4.5%), and less than 1% trace elements.

The more common rock constituents of the Earth's crust are nearly all oxides; chlorine,...