Learn how calcium, and other elements, were discovered by Sir Humphrey Davy, about its chemical properties, and about its uses and applications.

Discusses the many physical properties of gold.

Explains what the melting point of pure gold is and the melting points for different gold alloys. Also presents various facts about gold and its properties.

Presents a long list of non-ferrous metals and some general facts about them.

Looks at the strength of tungsten, osmium, and titanium, and their chemical and physical properties.

Discusses the chemical and physical properties of gold and some ways it is used.

Provides an overview of the nineteen natural laws proposed by Thomas Hobbes as a framework for guiding understanding of the difference between right and wrong.

Explains how radiation is produced and the characteristics of alpha, beta, and gamma radiation.

Explains what an anemometer is used for and the different models that have been developed since it was first invented.

Describes the purpose of an anemometer and the five main types.

Describes the characteristics of mammatus clouds and how they are formed and behave.

Provides instructions on how to grow an alum crystal.

Presents facts about alum, types, and instructions on how to grow an alum crystal.

Explains what alum is and its properties and uses.

Learn what surface tension is, how it works, and its practical applications.

Describes the characteristics of light, presents two formulas for calculating its wavelength, and provides a table of the different wavelength ranges across the electromagnetic spectrum.

The Indus River originates in Tibet and extends all the way to the Arabian Sea. Learn some interesting facts about its geography, history, and what it is like today.

A brief overview of the features and functions of the two main types of microscopes.

Goes through the different structural and optical parts of a compound microscope and how a compound microscope functions.

Read about how a stationary air front forms when warm and cold air masses meet but neither can overpower the other. Explains what its characteristics are and the impact it can have on weather conditions.

Presents five ideas for science projects that require simple materials and can be easily done in a short time.

Learn about the element tellurium, how it was discovered and named, its physical and chemical properties, and what it is used for.

Discusses the density of ethanol at different temperatures, how to calculate the density, and what ethanol is used for.

Presents facts about Magnesium, descriptions of its physical and chemical properties, and examples of its uses.