What's the difference between body cells and sex cells? Learners explore the question and the process of meiosis using an interactive lesson. An animation describes the discovery of meiosis and describes its phases for a detailed and...

Attracting the right mate is as important for humans as any other species. An interesting lesson teaches individuals about several strategies that animals and plants have adapted to attract their mates. From colorful nests to powerful...

In this online interactive history worksheet, students respond to 10 short answer questions about Pablo Picasso. Students may check some of their answers on the interactive worksheet.