ENDOCRINE GLANDS OVARIES TESTES HORMONE FACTORY FIND OUT MORE
Many body processes are influenced by hormones, chemical messengers produced by glands of the endocrine system. These glands…
PHYLUM: MOLLUSCASlugs, snails, oysters, clams, squid, octopuses, and cuttlefish are very different to look at, but they are all molluscs. They have a ribbon-like tongue, called the radula,…
DEPOSITIONFIND OUT MOREThe rocky material that is transported and DEPOSITED by rivers, seas, glaciers, and the wind is called sediment. Clay, sand, and gravel are all types of sediment.…
There are images that will stay with us forever. From FDR notifying the world that the U.S. had entered WWII, to Obama's trademark fist bump at the Democratic National Convention, these scenes…
Eratosthenes 276–195 B.C. This Greek astronomer was the first to measure the size of Earth accurately. He determined that the earth's polar diameter was about 7,850 miles. (In fact, the distance is…
Sources: NASA and the International Astronomical Union. News Flash (August 24, 2006)—Pluto Demoted! Read About It Here. Misleading reports that Pluto was about to lose its status as a planet in…
A gold medal and a world record in 1994
by Mike Morrison Related Links 2014 Winter Olympics Speed Skating Through the Years Encyclopedia: Speed Skating…
WHY IS THE HUMAN BRAIN SPECIAL? WHAT IS THE BRAIN MADE OF? HOW DOES THE BRAIN WORK? BRAINWAVESFIND OUT MOREThe largest organ in the nervous system is the brain. It controls vital involuntary…
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…
AIRLINERSHELICOPTERSFIND OUT MOREBoth aeroplanes and HELICOPTERS are aircraft. These machines use engines and aerofoil wings to lift off the ground and move through the air. Aeroplanes use…
