"Are you in control of your body? Maybe, maybe not. Read this book to learn how your body gets the messages it needs to perform even simple functions."
Describes the symbiotic relationships that occurs between such animals as crocodiles and Egyptian plovers and termites and protozoa, and discusses types of symbiosis and what each kind of animal gains
Describes the symbiotic relationships that occurs between such animals as crocodiles and Egyptian plovers and termites and protozoa, and discusses types of symbiosis and what each kind of animal gains
Presents an introduction to composting, discussing how decomposition works, how to set up and maintain a worm farm, and how compost improves the soil and helps plants grow.
Presents an introduction to waste disposal, describing what happens when paper, plastics, glass, and electronic products are recycled and offers experiments and activities that can be done to demonstr
Presents an introduction to waste disposal, describing what happens when paper, plastics, glass, and electronic products are recycled and offers experiments and activities that can be done to demonstr
Describes the labor and resources required for creating a pizza pie, from the harvesting of tomatoes and grain to the fermentation of cheese, and explains where selected pizza toppings originate.
Presents an introduction to water conservation, describing what happens during the water cycle and what steps need to be taken to save water, and offers experiments and activities that can be done to
Presents an introduction to water conservation, describing what happens during the water cycle and what steps need to be taken to save water, and offers experiments and activities that can be done to
Introduces simple machines, including screws, levers, wedges, and pulleys, describes how each makes everyday life easier, and provides activities demonstrating these machines in action.
Describes life in the wetland regions of the world, including how plants and animals survive, how people adapt to living in the regions, and what factors currently threaten wetlands.
Describes life in the grassland regions of the world, including how plants and animals survive, how people adapt to living in the regions, and what factors currently threaten grassland ecosystems.
Presents an introduction to weather, discussing the impact of the sun, air movement, bodies of water, and the Earth's rotation on weather systems, the causes of precipitation, and how the weather is f
Presents an introduction to weather, discussing the impact of the sun, air movement, bodies of water, and the Earth's rotation on weather systems, the causes of precipitation, and how the weather is f
Presents an introduction to energy, its different types, how its use has contributed to climate change, and the best ways to practice energy conservation, with instructions for activities that can be
