Review the safety precautions while performing scientific investigations.

Kamoku is a boy from Hawaii who is interested in the seven life processes. Do you know what these are? Join Kamoku and discover them with him.

BSCS Middle School Science is a standards and inquiry-based program comprised of four units: Earth/Space Science, Life Science, Physical Science, and Science and Society. The curriculum is available free online for teachers.

Heart rates can be determined by the amount of physical activity your body is engaging in. The more physically active you are, the faster your heart beats. You can measure the rate your heart is beating by taking your pulse. This science...

Article reports on the increasing size of ocean animals over the millenia. Includes a list of key vocabulary.

Understand the structure and function human cardiovascular system.

Explore the characteristics and behaviors of lizards and snakes.

Understand the ecological importance of insects, and why they are important to humans.

Discover the human uses of fungi.

Understand the genetics and characteristics of viruses.

Explore the molecular evidence for evolution.

Understand the processes of osmosis and diffusion.

Explore the diversity of the domain Archaea.

Understand the role that the carbon cycle plays in the ecosystem.

[Free Registration/Login may be required to access all resource tools.] Seedless plants can reproduce asexually or sexually. Some seedless plants, like hornworts and liverworts, can reproduce asexually through fragmentation. When a small...

[Free Registration/Login may be required to access all resource tools.] Even though plants and animals are both eukaryotes, plant cells differ in some ways from animal cells. Plant cells have a large central vacuole, are surrounded by a...

[Free Registration/Login may be required to access all resource tools.] Fossils are the preserved remains of animals, plants, and other organisms from the distant past. By studying fossils, evidence for evolution is revealed....

[Free Registration/Login may be required to access all resource tools.] Do you ever wonder why some birds are big like ostriches and some birds are small like robins? Or why a lion has a mane while a leopard has spots? In the 19th...

There are battles that are fought each day on the planet. The invading forces are those of viruses and bacteria. Left alone they would take over and destroy every cell! It is up to some key defense systems to battle and destroy these...

[Free Registration/Login may be required to access all resource tools.] Biodiversity is a measurement of the amount of variation of the species in a given area. More specifically, biodiversity can be defined as the variety of life and...

[Free Registration/Login may be required to access all resource tools.] Imagine you open a gallon of milk, and you suddenly smell a foul odor. Your sense of smell has informed you that the milk has spoiled. So you pour the spoiled milk...

[Free Registration/Login may be required to access all resource tools.] An organism goes extinct when all of the members of a species die out and no more members remain. Extinctions are part of natural selection. Species often go extinct...

[Free Registration/Login may be required to access all resource tools.] If pathogens get through the body's first two lines of defense, a third line of defense takes over. This third line of defense involves the immune system. The immune...

[Free Registration/Login may be required to access all resource tools.] When an herbivore eats a plant, the energy in the plant tissues is used by the herbivore. Every time energy is transferred from one organism to another, there is a...