EARTH AND LIFE SCIENCE.pptxxxxxxxxxxxxxxxxxxxxxx

earth and life

1. EARTH AND LIFE SCIENCE

2. LESSON 1 MODULE 1 ORIGIN AND STRUCTURE OF THE EARTH (THE PLANET EARTH)

3. EARTH AND LIFE SCIENCE It presents the history of the Earth through geologic time. It discusses the Earth’s structure, composition, and processes. Issues, concerns, and problems pertaining to natural hazards are also included. It also deals with the basic principles and processes in the study of biology.

4. HOW WELL YOU KNOW OUR PLANET EARTH?

5. WHAT MAKES OUR PLANET DIFFERENT FROM OTHER PLANETS?

6. EARTH: A HABITABLE PLANET

7. FACTORS THAT MAKES A PLANET HABITABLE TEMPERATURE WATER ATMOSPHERE ENERGY NUTRIENTS

8. TEMPERATURE Ideal temperature to support life is between 15°C to 115 °C

9. water Water is essential to all life forms.

10. ATMOSPHERE It should have a thick atmosphere to protect life from harmful rays and foreign objects from space.

11. ENERGY Sun or any chemical energy is used to run chemical reactions necessary for life.

12. Nutrients Chemicals necessary to make proteins and carbohydrates, organisms cannot grow.

13. Lesson 2 MODULE 2 ORIGIN AND STRUCTURE OF THE EARTH (The Subsystem)

14. EARTH’S SUBSYSTEMS There are four (4) subsystems: Atmosphere (air) Geosphere (earth/land) Hydrosphere (water) Biosphere (life)

15. ATMOSPHERE It is the gaseous layer above the Earth’s surface, primarily composed of 78% nitrogen and 21% oxygen. Other gases like argon, carbon dioxide, carbon monoxide, ozone, and other inert gases made the remaining 1% It supports life by providing OXYGEN for animals and CARBON DIOXIDE for plants. It also supports life indirectly by regulating climate. It serves as a blanket for harmful radiation during the day and keeps the Earth warm during the night.

16. geosphere The geosphere includes all the rocks that make up Earth, from the partially melted rock under the crust, to ancient, towering mountains, to grains of sand on a beach. It includes the core, mantle, and the crust of the Earth. It also provides a habitat for different life forms.

17. hydrosphere The hydrosphere includes water that is on the surface of the planet, underground, and in the air. A planet’s hydrosphere can be liquid, vapor, or ice. Just like the geosphere, it also provides a habitat for different life forms.

18. biosphere The biosphere is made up of the parts of Earth where life exists. The biosphere extends from the deepest root systems of trees, to the dark environment of ocean trenches, to lush rain forests and high mountaintops. Since life exists on the ground, in the air, and in the water, the biosphere overlaps all these spheres.

19. ACTIVITIES Activity 1: “Terraforming Mars” Can man change or adjust Mars’ environment to make it more suitable for human habitation? How? List down your answers on the table. 1 2 3 4 5

20. Activity 2: Creating a Planet Fill up the data needed in your created planet. My planet is called _______________. It is located in the __________________. The weather is _____________________. It would have ____________kinds of organisms. The individual who live there are called ________________________. The individual look like this. The planet looks like this.

21. Activity 3: The human population has increased rapidly since the 1700’s. For most of human history, there were fewer than half- billion people on Earth. In mid- 2009, 6.7 billion people inhabited our planet. Because of these, extensive pollution is everywhere. As a student, what can you do to save not only a particular system, but the Earth itself? Tabulate your answer on a sheet of paper, Copy the template below. MY ENVIRONMENTAL “TO DO” LIST 1 2 3 4 5