2. Earth Diameter - 12,756.3 km Mass – 5.972e24 kg
Densest major body in the solar system
1 satellite – the Moon

3. Mass(x10^24 kg) Atmosphere- 0.0000051 Oceans- 0.0014 Crust- 0.026
Mantle
Outer core
Inner core

4. Chemical composition(by mass)
34.6% - iron
29.5% - oxygen
15.2% - silicon
12.7% - magnesium
02.4% - nickel
01.9% - sulfur
0.05% - titanium

5. Earth’s name
Is the only planet whose English name does not derive from Greek/Roman mythology.
From Old English and Germanic.
In Roman mythology, the goddess of the Earth was Tellus.
Greek: Gaia, terra mater-Mother Earth.