Earth is about 4.5 billion years old.
It's the only planet known to support life.
There are approximately 195 countries in the world.
The highest point on Earth is Mount Everest.
The lowest point is the Mariana Trench.
The Earth's atmosphere is composed mainly of nitrogen and oxygen.
The planet is 71% water and 29% land.
The Amazon Rainforest produces 20% of the world's oxygen.
The Great Barrier Reef is the largest living structure visible from space.
Antarctica is the driest, windiest, and coldest continent.
The Earth's circumference is roughly 24,901 miles (40,075 kilometers).
The planet experiences four seasons due to its axial tilt.
The deepest freshwater lake is Lake Baikal in Siberia.
Lightning strikes Earth about 100 times every second.
The Earth's magnetic field protects it from solar winds.
The longest river is the Nile in Africa.
The Pacific Ocean is the largest and deepest ocean on Earth.
The Sahara Desert is the world's largest hot desert.
The Earth's core is as hot as the sun's surface.
Over 7,000 languages are spoken worldwide.
The Dead Sea is the lowest point on land.
Earth's rotation is gradually slowing.
The Himalayas are still growing taller.
The Moon is gradually moving away from Earth.
The world's largest desert is Antarctica.
The coldest temperature recorded on Earth was -128.6°F (-89.2°C) in Antarctica.
The hottest temperature recorded was 134°F (56.7°C) in Death Valley, USA.
The Great Wall of China is the longest man-made structure on Earth.
The Earth's oldest known rock dates back around 4 billion years.
There are over 1.5 million known species of fungi.
Lightning can strike the same place twice.
The Earth's water is in a constant cycle through evaporation and precipitation.
The Sahara Desert was once lush and green.
Oceans contain about 96.5% of the Earth's water.
The world's tallest tree is the coast redwood.
The Gulf Stream regulates Europe's climate.
The Earth's atmosphere has five main layers.
Antarctica is the only continent without a time zone.
Around 71% of Earth's surface is covered by water.
The Earth's rotation causes the Coriolis effect.
Over 80% of Earth's animals have yet to be discovered.
Earth's oldest living organism is thought to be a bristlecone pine tree.
The Pacific Ring of Fire is home to 75% of the world's active volcanoes.
The Earth's population is around 7.9 billion people.
Jupiter is so massive it helps protect Earth from some comets and asteroids.
The Dead Sea has such high salt concentration that people can easily float on its surface.
Earth's continents move about the width of a playing card each year.
The atmosphere filters out some harmful solar radiation.
The Earth's ozone layer protects it from ultraviolet radiation.
The planet's rotation isn't perfectly smooth due to tidal forces.