OCEANS: THIS PLANET’S LAST FRONTIER

QW- WHAT ARE WAVES?

WAVES

Waves can be made several different ways: the wind, earthquakes, volcanic eruptions, even the moon can cause them!

What are they? They are energy that has been released into the water. Some are larger than others.

What type of wave can cause destruction?

WHAT ARE THEY?

Our oceans have been here for about 4.5 billion years. The earth was a different place beyond that. Volcanoes covered the surface. Eventually the earth cooled enough so that water vapor could turn into liquid water. The salt in the volcanic ash mixed in and formed the oceans.

They make up 71% of the earth’s surface. They are made up of salt water. They separate our continents.

WHERE ARE THEY?

There are 4 major oceans. Pacific, Atlantic, Arctic and Indian.

WHY THE SALT?

The sea salt comes from rivers and streams that pick it up along the way.

The ocean water evaporates leaving the salt behind for more water.

WHAT IS SALINITY?

HOW DOES TEMPERATURE AFFECT THE OCEANS?

3-2-1 3 things that you have learned. 2 things that you knew before but needed

help remembering. 1 question that you still have.