Product Description: The red and blue lights of a police car flash brightly. The police car speeds down the street as the roar of loud sirens fills the air. Police cars cruise the streets, helping officers keep people safe.

Product Description: Discusses water, wind, ice, and soil erosion.

Product Description: Provides an introduction to light, along with information about how light travels, reflects, bends, and creates rainbows. Includes an activity, plus information about Thomas Edison.

Product Description: Discusses the forces that change Earth's surface, including the movement of plates, volcanoes, and earthquakes, and the effects of those forces. Includes information on Mount Saint Helens.

Product Description: Discusses types of fossils and what scientists can learn from them. Includes information on fossil fuels.