HOW CLOUDS FORMHUMIDITYTHUNDERSTORMSFIND OUT MOREAir always contains some water vapour from oceans, lakes, and the ground. Clouds form when the air cools below a certain temperature, so…
COLOURFUL PLUMAGEMOCK DUALBONDING THROUGH GROOMINGMATING CALLSANOLE LIZARDRUTTING RED DEERLEAVING A SCENTFIND OUT MORESome animals perform complex rituals to attract a mate. These displays,…
ONE-WAY BENEFITTWO-WAY BENEFITMARINE COMMUNITYFIND OUT MOREA community consists of a number of different populations that interact with one another. Because environments vary considerably in…
ASTEROID IDANEAR EARTH ASTEROIDSMETEORITESKUIPER BELTFIND OUT MOREBillions of rocky lumps, called asteroids or minor planets, circle the Sun between the orbits of Mars and Jupiter. They occupy…
THE MOON IN ECLIPSETHE LUNAR SURFACEPHASES OF THE MOONFIND OUT MORECircling round Earth once a month, the Moon is our planet’s only natural satellite. As the Moon orbits Earth, our view of…
PAHOEHOE LAVAAA LAVAHYDROTHERMAL ACTIVITYFIND OUT MOREVolcanoes are vents (openings) in the ground from which magma (molten rock), ash, gas, and rock fragments surge upwards, in an event…
CROCODILE EGGSROLE REVERSALASEXUAL BUDDINGLIVE YOUNGFERTILIZATIONFIND OUT MOREAnimals reproduce in one of two ways. In asexual reproduction, animals produce young, which are identical to…
Senate Years of Service: 1881-1887Party: DemocratFAIR, James Graham, a Senator from Nevada; born near Belfast, County Tyrone, Ireland, December 3, 1831; immigrated to the United States in 1843…
EUROPEAN SOUTHERN OBSERVATORYMAUNA KEA OBSERVATORYVERY LARGE ARRAYFIND OUT MOREOptical observatories study the visible radiation (light) from objects in space, and most are located high up on…
COASTAL (NERITIC) ZONEOPEN OCEAN ZONESOCEAN CURRENTSTIDESWAVESFIND OUT MOREAbout 71 per cent of our planet’s surface is covered by oceans and seas. In order of size, the five great oceans are…
