How many African elephants are on earth? How do scientists answer a question like that? An interactive resource explains a variety of survey methods and their advantages and disadvantages. It connects the need for a survey to...

Electricity travels at the speed of light, 186,000 miles per second. Through a simulation, classes see how the structure of energy bands in crystals of atoms determines how materials conduct electricity. Participants can change the...

In this classification of life worksheet, students use an on line source to answer questions about how species are classified, named and grouped. They give the classification of a bear, an orchid and a sea cucumber.

In this bluebirds learning exercise, students categorize bluebird species found in their state and define vocabulary related to it. Students complete 6 vocabulary words.

In this ecology activity, students read the vocabulary words and then categorize a species found in a field, meadow, or fencerow in their state or region. Students complete 6 problems.

In this rainforest worksheet, learners watch a video of Prince Charles wanting to save the tropical rainforest and then fill in the blanks to sentences about the video. Students complete 12 sentences.

In this Dig Magazine archeology quiz, students answer 4 multiple choice questions covering a variety of topics. Page contains answer and additional resources link.

In this ecology vocabulary exercise:  wetlands worksheet, students read the definitions of 8 words, then categorize a species found in a wetland in their region.  This page has numerous links to helpful web resources.

Windows to the Universe has developed an interactive resource about the earth, space, biological and physical sciences. Content includes information on our planet, the solar system, the universe, myths associated with space, space...

Thirty questions to test your knowledge of upper elementary / middle level science (in Spanish). Covers energy, health, physics, technology, biology, chemistry, history of science, and earth sciences. You can choose between a Flash or...

Learn why fieldwork is an important component of any scientist's career, especially among those who are actively working to preserve the Earth's biodiversity. Three American Museum of Natural History biologists tell you about their...