Explains what mechanical energy is and provides 22 examples of it.

Describes the ecology of the Amazon rainforest, the characteristics of its climate, the impact of human actions on this environment and the need for stronger conservation efforts to save the rainforests.

Discusses lost nuclear weapons, the power of an atomic bomb, the bombing of Hiroshima and Nagasaki, the development of the atomic bomb, the making of the hydrogen bomb, the detonation of a hydrogen bomb by Russia in 1961, and the status...

Describes many of the plants and animals that live in deserts and their special adaptations that have enabled them to survive there. Also describes four types of deserts.

Read about gypsum, where it is found, how it forms, its properties, and its many uses.

Learn about the history of mercury, its physical and chemical properties, where it is found, its uses, its toxic effects, and some interesting facts.

Learn about the seven metalloid elements of the periodic table, their properties, and their uses.

Find out about the five layers of the atmosphere in this resource which provides loads of information about the troposphere, stratosphere, mesosphere, thermosphere, and exosphere.

Describes the features and characteristics of the tundra biome, the different types, where they are found, their climate and seasonal changes, and their plants and animals.

Read about the different predators, consumers, and producers that make up an ocean food chain.

Provides descriptions of a variety of storm types including wintry ones, ones with no precipitation, and very destructive ones. Discusses weather conditions that lead to these storms, precautions one can take, public alerts, etc.

Read about all the different kinds of potential and kinetic energy. Includes energy formulas and examples of energy applications.

Discover the wide variety of ways we use carbon as well as its three allotropes that are found in the natural world - graphite, diamonds, and amorphous carbon.

Read about the archaeologists who discovered the first Hominid skeleton and other ancestors of humans.

Presents interesting information about the Arabian Desert, including its physical geography, climate, plants and animals, their adaptations to the environment, natural resources, and threats to its habitats.

Detailed descriptions of five solar system science projects for students.

Describes examples of commensal relationships in the natural world.

Discusses the organization of the periodic table into periods and groups, then looks at where the Lanthanoids and Actinoids are situated, and their properties.

Provides the configuration for each of the six noble gases and explains how to write noble gas configurations. Also explains what pseudo-noble gas configuration is.

Explains the theoretical basis of electron configuration and presents a table of all 118 elements with their symbols, number of electrons, and electron configurations.

Discusses the history and organization of the periodic table, where the metalloids fit in, and their properties. Includes color-coded periodic table of elements.

Provides images and the history of each of the national symbols of the United States.

Explains the concept of heat transfer and describes conduction, convection, and radiation which are the three modes of heat transfer. Includes formulas, examples, and applications.

Explains what a chemical change is and how to identify one. Provides examples of chemical changes that are often seen in organic and inorganic compounds.