background preloader

Types of Clouds

Types of Clouds
Why do clouds form at different heights in the atmosphere?The characteristics of clouds are dictated by the elements available, including the amount of water vapor, the temperatures at that height, the wind, and the interplay of other air masses. How is fog formed?There are many different types of fog, but fog is mostly formed when southerly winds bring warm, moist air into a region, possibly ending a cold outbreak. As the warm, moist air flows over much colder soil or snow, dense fog often forms. Warm, moist air is cooled from below as it flows over a colder surface. Cirrostratus clouds are thin, sheetlike high clouds that often cover the entire sky. Cirrocumulus clouds appear as small, rounded white puffs that appear in long rows. "Alto" Clouds Altostratus clouds are gray or blue-gray mid level clouds composed of ice crystals and water droplets. Altocumulus clouds are mid level clouds that are made of water droplets and appear as gray puffy masses. Stratus Clouds Cumulus Clouds

Related:  CloudsThunderstorms & HailScience

Weather Wiz Kids weather information for kids Lightning What is lightning? Lightning is a bright flash of electricity produced by a thunderstorm. All thunderstorms produce lightning and are very dangerous. If you hear the sound of thunder, then you are in danger from lightning. Lightning kills and injures more people each year than hurricanes or tornadoes; between 75 to 100 people. Early Theories of Evolution: Darwin and Natural Selection Most educated people in Europe and the Americas during the 19th century had their first full exposure to the concept of evolution through the writings of Charles Darwin . Clearly, he did not invent the idea. That happened long before he was born.

Dangerous Weather On a hot summer day the surface of the Earth is heated by the sun. The Earth's surface heats the air just above the surface through the process of conduction. The action of warm air rising and cold air sinking (convection) plays a key role in the formation of severe thunderstorms. If the warm surface air is forced to rise, it will continue to rise, because it is less dense than the surrounding air.

Progetto: Languages across Science (scienze, lingue, CLIL) Spazi, tempi e strumenti Il progetto si è svolto in gran parte a scuola, più precisamente: PRIMA della settimana della scienza (circa 2 settimane prima) nelle singole aule per brainstorming iniziale e prima presentazionein parte a casa per raccolta immagini e materiali necessari nelle singole aule in aula scienze/video per scambio/condivisione di lavori di gruppo e videoproiezioni DOPO (per circa 3 settimane) Weather Wiz Thunderstorms What is a thunderstorm? A thunderstorm is a storm with lightning and thunder. Its produced by a cumulonimbus cloud, usually producing gusty winds, heavy rain and sometimes hail. What causes a thunderstorm?The basic ingredients used to make a thunderstorm are moisture, unstable air and lift. You need moisture to form clouds and rain.

Ourselves, Science, Key Stage 1 - Interactive Whiteboard Resources Our BodiesFlash An excellent lesson on naming the parts of the human body. Ourselves Science ClipsFlash Exhibits Collection New Englanders have a saying: "If you don't like the weather, just wait a minute." Weather forecasts may be more stable in other parts of the world, but the basic idea stands. Weather is dynamic, the product of interacting forces we are only beginning to understand. Witness the weather extremes caused by El Niño in 1997 and 1998. Evolution activities - Charlie's Playhouse Tree of Life Fly through a giant tree of life and click on creatures to see how we're all related. Some creatures have cool 360-degree models. Devolve Me Upload a photo of your face and see what you would look like as a Neanderthal or other human ancestor.

GCSE Bitesize: Evidence for Darwin's theory of evolution