Presentation on theme: "Warm-Up8-19-14 Direction: Copy down the questions and provide answers. 1.How many layers are there in the Earth’s interior? 2.Who discovered the concept."— Presentation transcript:
Warm-Up Direction: Copy down the questions and provide answers. 1.How many layers are there in the Earth’s interior? 2.Who discovered the concept of gravity? 3.Label the Earth layers in this picture Agenda Notes Chp 2-2 Sphere Poster Homework Earth’s Interior WS?
Chapter 2-2 Earth’s Four Spheres Atmosphere = air Biosphere = life Hydrosphere = water Geosphere (Lithosphere) = rock
Atmosphere Blanket of gases that surrounds Earth 78% nitrogen and 21% oxygen Provides the air we breathe and shields us from the Sun’s harmful radiation
Biosphere Includes all of the life forms found in the atmosphere, hydrosphere, and geosphere. Extends from the deepest part of the ocean to several miles above Earth’s surface
Hydrosphere Contains all of Earth’s water Covers 71% of Earth’s surface 97% of Earth’s water is in the salty oceans 3% of water is fresh water found in lakes, rivers, frozen glaciers, and underground in the soil.
Geosphere Includes all the rock and soil on the surface of the continents and on the ocean floor Also includes the interior of the Earth
Sphere Poster Select one of the four spheres Defend why is your sphere better than the other three! You need: – 1 poster per group (four members or less) – An opening argument/statement (Our sphere is the best because _________) – Write 3 Evidence to back up your argument – Write 3 facts about your sphere – A beautiful poster with at least 4 colored pictures! – Class Presentation Today (all group members must speak)
Homework Earth’s Interior Worksheet Due Thursday