Untitled Haiku Deck
No Description
MORE DECKS TO EXPLORE
PRESENTATION OUTLINE
EARTH’S MAGNETIC FIELD
BY: YASHICA KASTIYA
What it means?
Earth's magnetic field acts like an invisible shield around Earth that protects it from dangerous things, like radiation from the sun
. It's also called a magnetosphere, the most remote part of a planet's atmosphere. Earth's magnetic field's power begins at Earth's core.
Our planet’s magnetic field is believed to be generated deep down in the Earth’s core.
What Does It Do?
The magnetosphere protects Earth from solar radiation, which is energy given off from the sun. When dangerous radiation from the sun comes toward Earth, the magnetic field bounces that energy back into space. If we didn't have a strong magnetic field, our planet would overheat, the oceans would evaporate, and life on Earth would be destroyed. Other places like the moon and Mars don't have strong magnetic fields, and this is one reason they don't have oceans.
Photo by Jeremy Thomas
Reversals of Earth's magnetic field
Earth does change its magnetic poles every million years (plus or minus 250,000 years). Before a change of magnetic field, the Earth's magnetic field becomes weaker and moves around, like a spinning top would before it falls.
Photo by Kevin M. Gill
Untitled Slide
The magnetosphere is created by the magnetic field. It is the area around the Earth that acts as a shield against the harmful particles in solar wind. The magnetosphere has many different layers and structures, and solar wind shapes each of these layers.
Photo by NASA
