Properties of Earth

  • 10 Types of Forces

    A force can make things move, stop, or change direction. For example, types of forces include gravity, friction, and magnetism.

  • 10 Types of Natural Disasters

    A natural disaster is a sudden and extreme event caused by nature that can cause damage and harm people. Learn the types of natural disasters.

  • The 17 Spheres of Earth

    How many spheres of Earth exist on Earth? If you count them all, you would get about 17 of them. This is the definitive guide to all 17 spheres of Earth.

  • Where is the North and South Pole?

    If you stick a pencil through Earth at the point of rotation, these 2 points are the north/south poles. Geographically, it’s where longitude lines converge.

  • A Guide to Earth’s Lithosphere

    Earth scientists compare the lithosphere to a thin, solid and brittle eggshell encasing our inner planet or a thick piece of wood that dries and breaks.

  • How To Define the Geosphere

    It’s difficult to pinpoint an exact definition for the “geosphere” because it’s used in several different ways. But here are 2 ways to define the geosphere.

  • How Gravity Sculpted the Earth

    What brings order on Earth is gravity. For all matter, it’s always at work. This is how gravity works for ocean tides, planet formation and escape velocity.

  • Earth Age: How Old Is the Earth?

    By dating meteorites, we find the oldest rocks are 4.5 billion or so years old. Thus, we conclude the same staggering 4,543,000,000 years for Earth’s age.

  • Earth Tilt: 23.5 Degrees Axis

    Imagine sticking a pencil into the Earth’s poles and twisting your wrist 23.5°. This is the Earth tilt essential in seasonal patterns, climate and life on Earth.