[Free Registration/Login may be required to access all resource tools.] Discusses how waves cause erosion of shorelines, features formed by wave deposition, and ways to protect shorelines from wave erosion.

[Free Registration/Login may be required to access all resource tools.] Looks at how wind causes erosion, how sediments are deposited by wind, and ways to prevent wind erosion.

[Free Registration/Login may be required to access all resource tools.] Identifies causes and effects of landslides and mudslides and explains how slump and creep occur.

[Free Registration/Login may be required to access all resource tools.] Looks at mechanical and chemical weathering, agents of weathering, and gives examples of each type of weathering.

[Free Registration/Login may be required to access all resource tools.] Describes how continental and valley glaciers form, explains how glaciers cause erosion, and identifies landforms that are deposited by glaciers.

[Free Registration/Login may be required to access all resource tools.] Defines electric current and relates electric current to different materials (insulators and conductors).

[Free Registration/Login may be required to access all resource tools.] Describes the parts of an electric circuit and identifies electric safety features and how to use electricity safely.

[Free Registration/Login may be required to access all resource tools.] Discusses what a tectonic plate is and how scientists can recognize its edges, how the plates move by convection in the mantle, the three types of plate boundaries...

[Free Registration/Login may be required to access all resource tools.] Looks at how stratigraphy can be used to determine the relative ages of rocks, how unconformities occur, ways to match rock layers in different areas, and how...

[Free Registration/Login may be required to access all resource tools.] Explains how to find a location and direction on Earth's surface. Discusses topography and various landforms and how they form.

[Free Registration/Login may be required to access all resource tools.] Discusses what fossils are, how they form, and what scientists can learn from fossils.

[Free Registration/Login may be required to access all resource tools.] Presents an overview of the major animals groups (mammals, birds, reptiles, amphibians, fish, arthropods, vertebrates, invertebrates, those having live births and...

[Free Registration/Login may be required to access all resource tools.] Discusses ways in which energy can be transferred, what kinetic energy is and types of potential energy. Includes examples of energy conversions.

[Free Registration/Login may be required to access all resource tools.] Discusses sound waves and properties of sound.

[Free Registration/Login may be required to access all resource tools.] Discusses wind energy and hydroelectric energy.

[Free Registration/Login may be required to access all resource tools.] Describes the conduction of thermal energy, how convection transfers thermal energy, and provides an example of the radiation of thermal energy.

[Free Registration/Login may be required to access all resource tools.] Discusses electric charge and electric force, and identifies ways that electric charge is transferred.

[Free Registration/Login may be required to access all resource tools.] Discusses refraction of light in matter and how light changes its speed and angle of refraction according to the type of medium it is travelling through.

[Free Registration/Login may be required to access all resource tools.] Considers the reflection of light from both smooth and rough surfaces and the law of reflection.

[Free Registration/Login may be required to access all resource tools.] Discusses different forms of energy and how energy changes form.

[Free Registration/Login may be required to access all resource tools.] Discusses nonrenewable and renewable energy resources. Outlines world energy use and ways to conserve energy.

[Free Registration/Login may be required to access all resource tools.] Discuses how plants respond to changes in their environment and some special adaptations in plants.

[Free Registration/Login may be required to access all resource tools.] Read about the processes of sexual reproduction in flowering plants, including pollination, fertilization (seed production), seed dispersal, and germination.

[Free Registration/Login may be required to access all resource tools.] Compares and contrasts the major stages in insect life cycles, such as those that undergo incomplete and complete metamorphosis.