2 1. What are the three main ideas that Earth scientists use to guide their work? The structure of the Earth systemThe Earth’s historyThe Earth in the solar system2. What is a System?A group of parts that work together as a whole
3 3.What are the four parts scientists divide the Earth into? 4. Lithosphere-Earth’s solid rocky outer layer5. Biosphere-All living things
4 6. Hydrosphere- 7. Atmosphere- All water bodies Earth’s oceans, lakes, rivers, ice7. Atmosphere-Outer most sphere, mixture of gasses surrounding the Earth
5 8. What is the mains source of energy for the systems on Earth? The SUN!How does the sun provide energy?Radiation (heat), the water cycle9. How old do scientists believe the Earth to be?4.6 BILLION Years old!!!
6 Constructive and Destructive Forces 10. What are constructive and destructive forces?Constructive: shape the Earth’s surfaceDestructive: wear away Earth’s surfaceGive examples:Plate tectonics building up mountains, volcanoesErosion of mountains by wind, water
7 11. What makes up the solar system? Sun, planets, their moons, rocks, ice particlesPlanets and moons move around the sun
8 The Branches of Earth Science 12. Name the five branches of Earth science:Geology-The study of the solid EarthOceanography-The study of Earth’s oceansMeteorology-The study of Earth’s atmosphereAstronomy-The study of the universe beyond EarthEnvironmental Science-The study of Earth’s environment and resources
9 Scientific Model:Helps scientists study and understand things that can not be observed directlyModels are used to represent complex objects or processes.Used in Earth Science by meteorologists using models to study weather, computer simulations to test hypothesis.