1. Notebook pgs. 1-5

2. Pg 1 Lithosphere: What’s the Big Idea? – Part III – Part II – Part I

3. Apple Demo Questions – do these without looking at your sheets! What did the skin on the last 1/32 of the apple represent? When I first cut the apple into quarters and set ¾ aside, what did those ¾ represent? What percent of the earth is terrestrial? What percent of the earth is aquatic?

4. Glossary Terms – put under correct letters in your glossary Atmosphere: (“atmos” = vapor or steam + “sphere” = round object) The layers of gas surrounding earth, held in by earth’s gravity Biosphere: (“bio” = life + “sphere” = round object) The zone of life on earth Hydrosphere: (“hydro” = water + “sphere” = round object) All the water on, in, and under Earth’s surface Geosphere: (“geo” = earth+ “sphere” = round object) The solid parts of earth made of rock Lithosphere: (“litho” = rock + “sphere” = round object) the outermost part of the geosphere Organic: characteristic of, pertaining to, or derived from living organisms

5. Pg. 2 Earth’s Systems – Atmosphere: The layer of gases surrounding the earth, held in by earth’s atmosphere. It is composed of 78% nitrogen, 21% oxygen, 0.93% argon, and 0.04% carbon dioxide. – Biosphere: The zone of life or the total area on earth where life can exist. – Hydrosphere: The combined mass of all water found on, over, and under Earth’s surface. – Geosphere: The solid part of the earth, composed of rock. The lithosphere refers to the uppermost layers including the crust and uppermost mantle.

10. Pg. 3 The Water Planet – Earth’s Land Many different land forms, such as mountains, valleys, and plains. 25% of earth is land 12.5 % of earth is suitable for human use 3.125% of earth is suitable for farming – Earth’s Water Many different bodies such as rivers, lakes, oceans, ponds, streams, and groundwater (underground). The ocean alone supports 50% of all species on earth.

11. Pg. 4 Saltwater and Freshwater – Saltwater is found in oceans and seas. – Freshwater is found in rivers, streams, lakes, ponds, and groundwater.

12. Glossary Terms Clay: smallest soil particle Sand: largest soil particle Silt: medium-sized soil particle

13. Pg. 5 Soil and Sand – Soil: Naturally occurring Layers (horizons) with different compositions and characteristics Contains mineral and organic (plant, animal, bacterial) matter – Sand: Naturally occurring Grains Made of small rock and mineral particles – Both: Naturally occurring Components of the lithosphere Come at least partially from broken down rocks and minerals

14. Soil vs. Sand

15. Soil Types SAND SILT CLAY

16. Sand Largest particles Doesn’t hold many nutrients Drains water well and quickly and lets in lots of air

17. Silt Medium size particle Dry, it feels smooth and powdery. Wet, it feels smooth but not sticky. Holds nutrients pretty well Drains water pretty well and lets in air

18. Clay Small particles Smooth when dry and sticky when wet. Soils high in clay content are called heavy soils. Holds a lot of nutrients Doesn't let air and water through it well.