The glaciers in North America spread from the Hudson Bay region and covered nearly all of Canada. Glaciers that pushed rocks and dirt away were bulldozers. The glaciers ground all the rocks into a powder that is called loess. This loess is found in Northern China, Ukraine, Kansas, and the Mississippi Valley. The glaciers spread across all the lakes and rivers, and when it spread over the ocean, the ocean level dropped 300feet (90 meters)!!

HERE ARE SOME INTERESTING FACTS THAT EVERYONE SHOULD KNOW:

• An Ice Age is a period of Earth's history when the earth was coverd with ice
• Earliest known Ice Age occured 2.3 billion years ago
• The most important Ice Age happened 600 million years ago
• Next most important Ice Age happened 450 million years ago
• Each Ice Age lasted about 20-50 million years
• Last Ice Age happened 2 million years ago and ended 10,000 years ago
• Many animals, such as the mammoths, camels, horses, and saber-toothed tigers, lived during the Ice Age