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Extreme Weather: Thunders...

THUNDERSTORMS – Thunderstorms are the most common type of storm. – These bring heavy rain, thunder, lightning, hail, and the odd tornado. – Two conditions must exist for a thunderstorm to form: Moisture is needed to form clouds and rain. Warm air must be pushed up in the atmosphere to form large cumulus clouds – […]

Forecasting and Measuring...

– Forecasting weather can be difficult because there are many factors involved in weather such as the motion of air and water masses. – Weather forecasters (meteorologists) use complex computer models, weather instruments, and observations of weather patterns to predict the weather. – However, through careful observation, weather can be predicted by any individual. – […]

PROFESSIONAL FORECASTING ...

– People who study weather and make weather forecasts are called meteorologists. – Meteorologists use advanced technologies like satellites, weather balloons, radar, and computers to forecast weather. CHANGING TECHNOLOGIES – Before 1980, weather forecasts were only accurate for one day due to a lack of technology. – Now, weather forecasts are usually accurate for 3-5 […]

What is Humidity Water in...

Humidity is the measure of how much water vapour is in the air and is measured using a hygrometer. When humidity is low (therefore little water vapour in the air), moisture on our skin evaporates easily making us feel comfortable. When humidity is high (therefore a large amount of water vapour in the air), moisture […]

What is the Coriolis Effe...

The earth makes one complete rotation on its axis every 24 hours. An object on the equator travels the circumference of the globe (approximately 40,000 km) each day. Objects at the Poles simply rotate around a vertical axis but don’t move in space. The distance traveled per day (and velocity of rotation) decreases with increasing […]

Plate Tectonics & Contine

Definition: Continental Drift It is the theory that the earth’s continents are constantly in motion and at one time they all collided together to form one massive continent about 300 million years ago! Pangaea (meaning “all lands”) began to break up and drift apart. Founder of the Continental Drift Theory Alfred Wegener came up with […]

Rocks and the Rock Cycle

Layers of rocks can be faulted, folded and tilted by large forces within the Earth’s crust. The study of these changes can give information about the strength and direction of the forces involved. Sedimentary rocks – layers of rock fragments that were compressed and cemented together. They often contain fossils. Igneous rocks – molten rock […]

Soil and Vegetations: Par...

FOUR MAIN PARTS TO SOIL 1. Minerals – comes from the weathering (chemical, physical) of the parent material. The inorganic material in soil is made up of rock material mainly. It can be sand, silt or clay. The particles in each of these rock types are ordered from larger to smaller with sand being the […]