SCi4

Module Overview

• Title: Factors Affecting Climate

• Subject: Science, Grade 9

• Delivery Mode: Alternative Delivery Mode (ADM)

• Published by: Department of Education, Philippines, 2020

Purpose of the Module

• Provides a self-learning framework for students to understand various factors affecting climate.

• Designed to facilitate understanding through activities, pre-tests, and post-tests.

Learning Objectives

After completing the module, students will be able to:

1. Differentiate between climate and weather.

2. Describe factors affecting climate.

3. Explain how latitude, altitude, and land topography affect climate.

4. Discuss how ocean surface and circulation influence climate patterns.

Key Concepts

What is Climate?

• Climate: Long-term average of weather patterns in a region over many years.

• Weather: Short-term atmospheric conditions at a specific time.

Factors Affecting Climate

1. Latitude

   • Temperature decreases with distance from the equator due to sunlight concentration.

2. Altitude

   • Temperature decreases by about 6.5°C for every 1000m increase.

   • Higher altitudes typically experience cooler temperatures.

3. Distance from the Sea

   • Land heats and cools faster than water, affecting coastal climates.

   • Coastal areas tend to have milder temperatures.

4. Prevailing Winds

   • Wind patterns dictated by the Earth's rotation and temperature differences influence climate.

5. Ocean Currents

   • Movements of ocean water distribute heat globally, affecting regional climates.

6. Topography

   • Elevation changes and mountain ranges influence precipitation patterns.

   • Rain shadow effects create drier conditions on the leeward sides of mountains.

Summary of Key Topics

• Climate vs. Weather: Distinct definitions, both important to understanding environmental conditions.

• Ocean Currents: Regulate temperatures and weather patterns, moving warm water toward the poles and cold water toward the equator.

• Topography Impact: Differences between windward and leeward sides regarding precipitation and temperature.

Activities and Assessments

• Pre-tests and post-tests to evaluate understanding.

• Exercises addressing specific factors affecting climate.

• Questions and puzzles to reinforce learning through engagement.

Important Notes

• Material should be treated with respect, avoiding unnecessary markings.

• Answers to exercises should be written on separate sheets of paper.

Additional Resources

• Visual aids including diagrams of latitude effects, wind patterns, and mountain influences.