ELEMENTARY SCIENCE FACTS & REVIEWERS

 CHANGES ON THE EARTH'S SURFACE DUE TO EARTHQUAKES AND VULCANIC ERUPTIONS Describe the changes on the Earth’s surface as a result of earthquakes and volcanic eruptions S6ES - IVa - 1 _________________________________ Lecture Notes: Changes on the Earth's Surface due to Earthquakes and Volcanic Eruptions Introduction: - Earthquakes and volcanic eruptions are natural phenomena that can cause significant changes on the Earth's surface. - They are both related to the movement and activity of tectonic plates, which make up the Earth's crust. - In this lecture, we will explore the effects of earthquakes and volcanic eruptions on the Earth's surface. I. Earthquakes: A. Definition and Causes: - An earthquake is a sudden shaking or trembling of the Earth's surface caused by the release of energy in the Earth's crust. - Most earthquakes occur along plate boundaries where tectonic plates interact. - The main cause of earthquakes is the movement and collision of tect...

  GEOLOGY: COORDINATE SYSTEM S7ESIVa-1 | Demonstrate how places on Earth may be located using a coordinate system A coordinate system is a system of lines or grids used to determine the position of a point on a map or a globe. The Earth is divided into imaginary lines called latitude and longitude . Latitude lines run horizontally, while longitude lines run vertically. Latitude lines are measured in degrees north or south of the equator, which is the imaginary line that circles the Earth at 0 degrees latitude. Longitude lines are measured in degrees east or west of the Prime Meridian, which is the imaginary line that runs from the North Pole to the South Pole at 0 degrees longitude. The intersection of a latitude line and a longitude line is called a coordinate or a grid reference . Coordinates are written in pairs , with latitude first, followed by longitude. For example, the coordinates for New York City are 40.7128° N, 74.0060° W. GPS (Global Positioning System) ...

NOTES ON EARTH'S SURFACE, VOLCANIC ERUPTIONS, EARTHQUAKE MECL CODE: S6ESIVa-1 QUARTER 4, WEEK 1 Changes on Earth's surface caused by earthquakes: Earthquakes are caused by the movement of tectonic plates beneath the Earth's surface. When tectonic plates move, they can create seismic waves that can cause the ground to shake and buildings to collapse. Earthquakes can cause landslides, tsunamis, and the formation of new cracks or fissures in the ground. Earthquakes can also cause the ground to sink or rise, which can change the landscape of an area. Changes on Earth's surface caused by volcanic eruptions: Volcanic eruptions are caused by the movement of magma or molten rock beneath the Earth's surface. When magma rises to the surface, it can cause a volcanic eruption, which can release ash, gases, and molten lava. Volcanic eruptions can cause landslides, mudflows, and the destruction of buildings and homes. Volcanic eruptions can also create new landforms, such as mou...

 SCIENCE Q3 PERIODIC EXAM REVIEWER Test I. Direction: Encircle the letter of the correct answer. 1) What is the force that resists the motion of an object when it is in contact with a surface? A) Gravity B) Friction C) Velocity D) Acceleration   2) What happens to the weight of an object when it is taken to a location with a stronger gravitational pull? A) It decreases B) It increases C) It remains the same D) It becomes zero   3) Which type of friction occurs when an object is moving through a fluid, like air or water? A) Static friction B) Rolling friction C) Sliding friction D) Fluid friction   4) When an object is on a flat surface and at rest, what is the direction of the force of friction acting on it? A) Upwards B) Downwards C) Towards the surface D) Perpendicular to the surface   5) What is the relationship between friction and the motion of an object? A) Friction always causes an object to slow down ...