Earth 101 National Geographic

When was Earth formed?

• 4.5 Billion Years ago

• 5.4 Billion Years ago

• 4.5 Million Years ago

• 5.4 Million Years ago

The Eart is the _____ planet from the sun

(do not use numbers! write the word down)

The Earth is 93 Million Miles far from the Sun.

1 mile = 1,6 km

How far is the Earth from the Sun in km?

• 500 Million Km

• 125 Million Km

• 150 Million Km

• 400 Million Km

What are the cold gas giant planets?

• Venus, Earth, Jupiter and Mars

• Mars, Pluto, Uranus and Mercury

• Saturn, Uranus, Neptune and Pluto

• Mercury, Mars, Uranus and Venus

Earth is the only place in the universe with ...... ..... on the surface.

Water...

• is not crucial for life on Earth.

• hydrates the land helping create nutrient rich soil.

• is the third layer of Earth's atmosphere.

• collects and pools to form oceans and freshwater systems.

An estimated ....... million species of plants, animals, bacteria, fungi and others have been catalogued to be discovered.

• 1,5

• 1,25

• 1,55

• 1,05