Presentation on theme: "Warm-Up Direction: Copy down the questions and provide answers."— Presentation transcript:
1Warm-UpDirection: Copy down the questions and provide answers.How many layers are there in the Earth’s interior?Who discovered the concept of gravity?Label the Earth layers inthis pictureAgendaNotes Chp 2-2 Sphere PosterHomeworkEarth’s Interior WS?
2Chapter 2-2 Earth’s Four Spheres Atmosphere = airBiosphere = lifeHydrosphere = waterGeosphere (Lithosphere) = rockIntroductory unit learned about the interior of the earth and now the exterior
3Atmosphere Blanket of gases that surrounds Earth 78% nitrogen and 21% oxygenProvides the air we breathe and shields us from the Sun’s harmful radiation
4BiosphereIncludes 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 surfaceCoconut Crab (terrestrial hermit crab), blobfish (deep under water ft Australia coast), Dust mite (microscopic allergen source)
5Hydrosphere Contains all of Earth’s water Covers 71% of Earth’s surface97% of Earth’s water is in the salty oceans3% of water is fresh water found in lakes, rivers, frozen glaciers, and underground in the soil.
6GeosphereIncludes all the rock and soil on the surface of the continents and on the ocean floorAlso includes the interior of the EarthVolcanoes bring matter from the interior to the surface while other processes move surface matter to the interior Play spheres video
7Sphere 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 argumentWrite 3 facts about your sphereA beautiful poster with at least 4 colored pictures!Class Presentation Today (all group members must speak)