Lesson 1 Factors that makes Earth Habitable

Factors that makes Earth Habitable.

1. PHYSICAL SCIENCE Marvelyn Jessica T. Jabeguero

2. EARTH & LIFE SCIENCE Marvelyn Jessica T. Jabeguero

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4. EARTH SCIENCE GEOLOGY METEOROLOGY OCEANOGRAPHY ASTRONOMY

5. UNIVERSE everything SPACE MATTER ENERGY TIME YOU

6. GALAXY stars, planets, and vast clouds of gas and dust, all bound together by gravity

7. SPIRAL GALAXY

8. ELLIPTICAL GALAXY

9. IRREGULAR GALAXY

10. QUASAR GALAXY

11. MILKY WAY GALAXY It’s a spiral galaxy with a disk of stars spanning more than 100,000 light-years.

12. SOLAR SYSTEM

13. SOLAR SYSTEM

14. EARTH Caters LIFE

15. FACTORS Temperature Water Atmosphere Energy Nutrients

16. TEMPERATURE Influences how quickly atoms, molecules or organisms move. Low temperature slows down chemical reaction High temperature can cause break down of important biological processes.

17. WATER Absence of this will interfere reactions necessary for life Solid form of this will also hinder living organisms to use it.

18. ATMOSPHERE It provides significant insulation or shielding from the sun and impact of small to medium size meteorites. is composed of a layer of gas mixture that surrounds the Earth's planetary surface (both lands and oceans)

19. ATMOSPHERE Greenhouse gases like carbon dioxide (CO 2 ) and methane (CH 4 ) traps heat and avoid our planet from freezing. Ozone (O 3 ) layer shields the Earth’s surface from harmful UV radiation. provides chemicals needed for life, such as nitrogen and carbon dioxide.

20. ENERGY Earth is at the right position from the sun that enables to harness enough amount of light. Sun is the primary source of energy.

21. NUTRIENTS chemical substances found in every living thing on Earth. Nutrients help break down food to give organisms energy. They are used in every process of an organism's body.

22. FACTORS Temperature Water Atmosphere Energy Nutrients

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24. REFLEC TION

25. QUIZ

26. How does temperature affect the ability of Earth to support life? a. temperature intensifies gravity b. temperature produces nutrients c. temperature protects Earth from radiation d. temperature affects biological and chemical processes 1.

27. Which of the following factors is essential for life to exist? a. Nutrients b. Temperature c. Liquid water d. All of the above 2 .

28. Which of the following are not the functions of the Earth’s ozone layer? 1. It produces enough amount of rain. 2. It filters harmful UV radiation that reaches Earth. 3. It regulates the weather on Earth. 4. It protects Earth from meteors and asteroids impact. a . 1,2 and 3 b . 1, 2 and 4 c. 1, 3 and 4 d. 2, 3 and 4 3.

29. What is the most important factor that determines Earth’s temperature? a. size of the orbit b. distance from the sun c. gas in the atmosphere d. amount of water on the planet 4.

30. If greenhouse gases will increase in Earth’s atmosphere, what will happen to its temperature? a. Earth’s temperature will increase. b. Earth’s temperature will decrease. c. Earth’s temperature will become stable. d. Earth’s temperature will not be affected. 5 .