What is Our Blue Earth?
Many scientists call the earth
the Blue Earth. Why is this?
Look at a globe
or map of the world. See all the blue. The blue shows what part of the earth
is water.The green shows what part of the earth
Think about it. Is the earth
more greenish for land or blue for water?
is made up mostly of water.
Water can be found in the oceans, rivers, streams, lakes, creeks, and ponds. It can be in other places, too.
Why can it be in both forms?
Climate is not the same everywhere on the earth
. Weather changes it. That is why some water is a solid
and some is liquid
. Water can be found as a solid
in ice glaciers where it is always cold and below freezing.In warmer areas, water exists as a liquid
About 72% of the earth
is covered in water. Most of this water is found in the oceans. Animal and plant life can live in it. You cannot drink salt water from the oceans.
Fresh water can be found in rivers, streams, lakes, creeks and pond. You cannot drink all water because it may not be clean. Aquifers are clean water streams found underground.
Water is found in the air, ground, and in animals. It is even in you. You need
water to live.
Our Blue Earth is made up of mainly water that can be found in many places and in the form of liquid or solid.