This lesson teaches students that traits are usually favored by natural selection only when they result in more reproductively successful offspring. Students go out onto the school lawn and play the role of birds, picking up toothpick stick worms which have been previously scattered in equal numbers of green-stained and unstained. Birds are chased away before the worm population drops too low. Back ... Full description.

This portal is geared toward younger visitors to the American Museum of Natural History website. It offers links to information, activities, games and quizzes in various "ologies," such as archaeology, paleontology, and entomology. The site presents profiles of scientists in each field as well as students who are interested in each field. Students can also collect various "ology cards" as they progress ... Full description.

PALS is an on-line, standards-based, continually updated resource bank of science performance assessment tasks indexed via the National Science Education Standards (NSES) and various other standards frameworks. The tasks, collected from numerous sources, include student directions and response forms, administration procedures, scoring rubrics, examples of student work, and technical quality data calculated ... Full description.

These science activities are meant to spark student curiosity and engage students in various science process skills, as well as present them with science content. They involve concepts related to static electricity, air pressure, density, energy transfer, the Bernoulli Principle, adhesion and cohesion. Full description.

This site, from the San Diego Natural History Museum, contains a group of thirteen classroom activities, based on the film entitled Ocean Oasis. These science activities offer an interdisciplinary approach, involving language arts, mathematics, and history/social studies, as well as science knowledge and skills. They may be used individually, with or without viewing the movie, or as an integrated ... Full description.

The GLOBE Classroom Assessment site provides sample student assessment tools and frameworks to provide teachers and students with evidence about progress on NASA's Global Learning and Observations to Benefit the Environment (GLOBE) program goals. GLOBE Assessment has three main components: (1) GLOBE Assessment Standards - Broad overview of assessment indexing to standards and frameworks that specify ... Full description.