The hydrosphere includes all liquid water on Earth, such as oceans, seas, lakes, rivers, groundwater, surface water and water vapor in the air. It covers 70% of the Earth's surface. The hydrosphere is home to many plants and animals and includes water in its three main forms: groundwater beneath the Earth's surface, surface water on land and in oceans, seas and lakes, and water vapor in the air.

1. What is hydrosphere?
The hydrosphere is the liquid water component of the
Earth. It includes the oceans, seas, lakes, ponds, rivers,
streams….. It includes ground water, surface water and
water in the air. The hydrosphere covers about 70% of
the surface of the Earth and is the home for many plants
and animals.
(Hydro=water in Greek)

2. Ground waterGroundwater is all the water found
underneath theEarths surface. This
water comes mostly from rain,
melted snow, and other water
that seeps through soil,sand, or the
cracks in the sidewalk.
Thanks to gravity, the water just keeps
moving downward, underneath the
Earths surface, until it cant go any
farther. When the water hits a layer
of rock or earth it cant get through, it
just sits there and builds up. This tub of
water underneath the surface is called
an aquifer.
Groundwater can eventually seep back
up to the surface. You’ll find it peeking
out of the Earth in things like springs
and wetlands.

3. Surface water
• Surface water is water on the surface of the
planet such as in a stream, river, lake,
wetland, or ocean.

4. Oceanic Waters
• Oceans and seas contain about 97% of the
water on the Planet Earth.
• There are five oceans: Pacific Ocean, Atlantic
Ocean, Indian Ocean, Arctic Ocean and the
Antarctic Ocean.
• They are big masses of salt water.

5. Label the oceans on your worksheet.