Ecology

The plants around us provide a perfect hands-on biologyclassroom for students of all ages.  Fromplanting that first bean in a paper cup to conducting more involved andcomplicated high-school biology experiments, studying plants can be aneffective, concrete, fun, and low-cost way for students to explore the livingworld. 

Autumn doesn’t officially start until next week, but thesigns that the season is imminent are all around us. The nights have becomenoticeably cooler, and the days shorter. Trees are beginning to change color,and will soon begin shedding their leaves. For many plants, the lifespan of their hardworking leaves has come to anend; they will soon color, shrivel, and finally die. In some parts of thecountry, many plants will remain dormant for the winter, and only graduallyre-animate in the spring, when they unfurl new leaves.

This is the moment when we must come together to save this planet. Let us resolve that we will not leave our children a world where the oceans rise and famine spreads and terrible storms devastate our lands. ~Barack Obama

There have been at least six well-documented mass extinctions on Earth over the past 500 million years, a phenomenon that has both puzzled and intrigued scientists for centuries. Various types of organisms on Earth become extinct fairly frequently, but mass extinctions are distinguished by the large numbers of species that become extinct over a relatively short period of time. The Cretaceous-Tertiary extinction, responsible for the demise of the dinosaurs some 65 million years ago, is perhaps the most famous mass extinction. It’s forever branded into our brains from being the topic of feature films, artists’ paintings, and numerous books.

Thanksgiving in America is a time for students and teachers to take a little break from school to reflect on the history of our country and to give thanks for all that we have. For many, it’s a time to take a vacation where we eat WAY too much and get up at crazy hours of the morning to get a head start on the Christmas shopping! In an attempt to help students understand the origin and the meaning of the holiday, many teachers teach Thanksgiving lessons during the time before the holiday. Some teachers choose to focus on the gratitude associated with the season, hoping to instill some of that thankfulness in their students. Other teachers choose to focus more on the historical events in the United States that inspired the holiday.

According to the EPA, the average American produces about four and a half pounds of trash each day, which amounts to a whopping 1,600 pounds per person annually. That figure does not include industrial waste or commercial trash – operations that produce much, much more trash than consumers.

Offshore oil drilling has long been a controversial topic, and the debate ratcheted up a notch when a BP offshore drilling rig exploded in the Gulf of Mexico last month. At this writing, BP has installed a tube to siphon some of the 210,000 gallons of crude oil that had been spewing into the Gulf each day.

April 22 marks the 40th anniversary of Earth Day, a day conceived to raise awareness of the Earth’s environment and our ecological health. Much progress has been made during this time: creation of the Environmental Protection Agency, the Clean Air Act, and the Clean Water Act are just a few examples of how the public and government have worked together to institute environmental change. Much work, however, still needs to be done. According to the World Health Organization, over 80% of disease in the developing world is due to water-related illnesses. Currently, about 20% of the world’s population (roughly 1.1 billion people) lack access to safe drinking water.

According to The Farmer’s Almanac, Native Americans named January the month of the Full Wolf Moon. Historically, it was a time of increased prowling by wolf packs, looking for food as the winter deepened. Most students are fascinated by wolves. Wolves are big, hairy, and find humans to be tasty (at least in fairy tales). They’re also mysterious creatures that offer plenty of fodder for lessons in a host of subjects.

Lon Po Po, by Ed Young
http://www.thegateway.org/browse/25012
Subjects: Literature, Chinese culture and Inventions
Grade: K-3