Slide decks covering the topic on Earth and Life Science Topic 1 (Earth's Unique Features)

Slide decks for Earth & Life Science

1. EARTH & LIFE SCIENCE

2. Competency: Recognize the uniqueness of Earth, being the only planet in the solar system with properties necessary to support life (S11/12ES-Ia-e- 3)

3. Why was the Earth formed closer to the sun

4. ACTIVITY: Make your group comprising of 3 to 4 students. Scavenge the classroom for statements/words posted around the classroom. Discuss the following as you find one: What makes this aspect of Earth unique? How does it contribute to supporting life? Why is it essential for our planet?

5. UNIQUE CHARACTERISTICS OF EARTH

6. LIQUID WATER ON THE SURFACE Earth is the only planet with abundant liquid water on its surface. Approximately 71% of Earth’s surface is covered by water, which plays a crucial role in supporting life and shaping our climate. While other moons and planets (such as Europa, Titan, and Triton) may have subsurface or trapped water, Earth’s oceans, rivers, and lakes are readily accessible.

7. CONTINENTS Earth stands out as the sole planet with continents—large landmasses that “float” on the planet’s mantle due to plate tectonics.

8. CONTINENTS Plate tectonics create geological activity, allowing continents to drift and reconfigure over time. Mercury, Venus, and Mars lack this dynamic process, resulting in more uniform surfaces without distinct continents

9. A SINGLE MOON Earth has just one natural satellite—the Moon. Its gravitational influence affects tides, stabilizes Earth’s rotation, and contributes to our planet’s unique environment.

10. A SINGLE MOON Other planets, like Mars, have moons, but none play such a vital role in shaping their host planet’s conditions.

11. DISTINCT ATMOSPHERE Earth’s atmosphere is rich in nitrogen and oxygen, providing the right mix for life. It shields us from harmful solar radiation and regulates temperature.

12. DISTINCT ATMOSPHERE In contrast, the atmospheres of other planets (such as Venus with its thick, acidic clouds or Mars with its thin, carbon dioxide-dominated atmosphere) differ significantly from Earth’s.

13. DISTINCT ATMOSPHERE Nitrogen (78%) Oxygen (21%) Argon (0.9%) Carbon dioxide (0.04%) Trace gases (such as methane, water vapor, and neon)

14. STABLE TEMPERATURE Earth maintains a relatively stable average temperature, thanks to its distance from the Sun and its greenhouse effect

15. STABLE TEMPERATURE The “Goldilocks zone” (habitable zone) around the Sun allows Earth to maintain liquid water—a crucial factor for life as we know it

16. QUIZ

17. 1. Which of the following statements is true about Earth’s water? A) Earth’s surface is 71% covered by land. B) Earth’s oceans are inaccessible due to thick ice layers. C) Earth’s water plays a crucial role in supporting life and shaping climate. D) Earth’s water is primarily found in underground caves. E) Earth’s water is evenly distributed across all planets. Answer: C

18. 2. What makes Earth unique regarding continents? A) Earth has no continents. B) Earth’s continents float due to plate tectonics. C) Earth’s continents are made entirely of rocks. D) Earth’s continents are evenly distributed across the planet. E) Earth’s continents are stationary. Answer: B

19. 3. How many natural satellites (moons) does Earth have? A) NONE B) TWO C) THREE D) ONE E) FOUR Answer: D

20. 4. What role does Earth’s atmosphere play in supporting life? A) It shields us from harmful solar radiation. B) It creates plate tectonics. C) It regulates ocean currents. D) It causes earthquakes. E) It generates wind patterns. Answer: A

21. 5. What allows Earth to maintain a stable average temperature? A) Its proximity to Mars B) Its thick layer of acidic clouds C) The “Goldilocks zone” around the Sun D) Its lack of greenhouse gases E) Its multiple moons Answer: C

22. ASSIGNMENT DEFINE AND EXPLAIN ONE OF THE EARTH’S FOUR SUBSYSTEMS Answer: C

23. The composition of Earth's atmosphere is1234: Nitrogen (78%) Oxygen (21%) Argon (0.9%) Carbon dioxide (0.04%) Trace gases (such as methane, water vapor, and neon)