G10 Science Day 2.pptx bundaries of earth

NAT SCI

1. THE DISTRIBUTION OF EARTHQUAKE EPICENTERS, ACTIVE VOLCANOES AND MOUNTAIN RANGES

2. Most Essential Learning Competencies Describe and relate the distribution of active volcanoes, earthquake epicenters, and major mountain belts to Plate Tectonic Theory

3. BASIC CONCEPTS

4. VOLCANO A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface.

5. CONTINENT A big body of land on the globe

6. EARTHQUAKE A vibration of Earth due to the rapid release of energy

7. EPICENTER The location on the Earth's surface directly above the focus of an earthquake .

8. MOUNTAIN A land mass that projects well above its surroundings; higher than a hill

9. MOUNTAIN RANGE A chain of mountains

10. A seismic wave is a mechanical wave of acoustic energy that travels through the Earth or another planetary body. It can result from an earthquake, volcanic eruption, magma movement, a large landslide, and a large man-made explosion that produces low-frequency acoustic energy.

11. PRIMARY WAVES The first type of seismic wave to be recorded in a seismic station, these compression waves are the fastest and travel through solids, liquids, and gases

12. SECONDARY WAVE The second type of earthquake wave to be recorded in a seismic station; these shearing waves are stronger than P-waves, but only move through solids

13. SEISMOGRAM The graphical record of an earthquake

14. SEISMOGRAPH A measuring instrument for detecting and measuring the intensity and direction and duration of movements of an earthquake

15. TSUNAMI A Japanese term for “big wave in the port;” generated during undersea quakes

16. BRING THE FOLLOWING NEXT MEETING: MATERIALS 2 pieces plastic sheet 2 marking pens(different Colors)

17. homework Answer the following questions in ½ sheet of paper. 1. How do volcanoes and mountains formed? 2. What are the possible cause/s of earthquake?