Which is worse — drought or flooding? Neither is helpful to the environment, and both are increasing due to climate change. The 16th lesson in a series of 21 covers the average precipitation trends for two different climates within the...

Match up the DNA code. Pupils read the website from the American Museum of Natural History about how DNA can determine whether a skin is from a particular type of reptile. Using the same technique, learners match up products with the...

Kenya is a country in East Africa; the capital city, Nairobi, is well-known for its National Park: the world's only game reserve found within a major city. The park's large wildlife population includes baboons, rhinos, gazelles, zebras,...