Earth Systems.pptx grade 6 integrated science

Earth Systems.pptx grade 6 integrated science

1. Earth Systems Chapter 3 lesson 1

2. Earth as a system Earth is a system . A system is a group of parts that work together as a whole. This system is made of many parts called spheres . All these spheres interact because parts of them move into each other.

3. Earth Spheres Air Water Land Living things

4. Watch this video: https://www.youtube.com/watch?v=VMxjzWHbyFM Now answer this question: What are the spheres of Earth?

5. Geosphere Most of Earth’s mass in the form of rocks and metals. It includes: Solid metal inner core. Liquid metal outer core. Rocky mantle and crust.

6. Geosphere It includes continents , islands, ocean floors. Its surface varies from flat plains to hills and mountain tops.

7. Biosphere Biosphere: is the part of the Earth that contain all living organisms.

8. Biosphere What spheres of Earth allow organisms to live? Water in the hydrosphere, air in the atmosphere, soil and shelter in the geosphere.

9. Watch this video: https://www.youtube.com/watch?v=UXh_7wbnS3A

10. Atmosphere Mixture of water vapor and other gases as nitrogen, oxygen and carbon dioxide gas. Also contains particles of matter as dust. It surrounds the Earth’s surface.

11. Atmosphere It is essential for life on Earth. No other planet has this mixture of gases essential for life. It also holds heat from the sun keeping the Earth warm and protecting living things from being damaged by too much sunlight.

12. Hydrosphere It makes all the water of the Earth. It covers a little less than ¾ of the Earth’s surface. Most of the hydrosphere is ocean water ( salty water).

13. Cryosphere The frozen component of the hydrosphere. It is made up of all the ice and snow on land plus sea and lake ice.

14. P. 181

15. It also holds heat from the sun, keeping the Earth warm.