WHAT CAUSES LIGHTNING? WHAT CAUSES THUNDER? HURRICANESFIND OUT MOREA storm is a bout of severe weather, with strong winds roaring at more than 55 mph (88 km/h), lightning flashes, thunder, and…
HOW DOES A VOLCANO ERUPT? ARE ALL VOLCANOES DANGEROUS? LAVAFIND OUT MOREA volcano is a vent or weak spot in Earth’s crust through which magma (hot, melted rock) escapes as LAVA. In some places,…
WHAT CAUSES THE WEATHER? FORECASTS FIND OUT MORE
Weather is what is happening in the atmosphere now, at any place on Earth’s surface. It includes the temperature and whether it is wet and…
DOES THE ATMOSPHERE REMAIN THE SAME FROM EARTH TO SPACE? WHAT IS ATMOSPHERIC PRESSURE? FIVE ATMOSPHERE LAYERSOZONE LAYERFIND OUT MOREMost life on Earth depends on the atmosphere, a bubble of gases…
(Encyclopedia) earth, in chemistry, metallic oxide not readily reducible by chemical means, e.g., alkaline earths, rare earths, and alumina. The name is also applied to certain absorbent clays, e.g…
(Encyclopedia) alkaline-earth metals, metals constituting Group 2 of the periodic table. Generally, they are softer than most other metals, react readily with water (especially when heated), and are…
(Encyclopedia) rare-earth metals, in chemistry, group of metals including those of the lanthanide series and actinide series and usually yttrium, sometimes scandium and thorium, and rarely zirconium…
Energy: Production & Consumption Find out which countries use and produce the most energy, how much the U.S. consumes, where the largest nuclear power plants in the U.S. are…
Ingredients:1 part hydrosphere (the earth's water)1 part lithosphere (the earth's rocks and minerals)1 part atmosphere (the earth's air) Directions: To create the perfect biosphere (all parts of…
Journey to the Center of the Earth For forty years, scientists have attempted to drill deep into the ocean’s crust, an enterprise promising significant insight into the planet’s geological history…
