Explains what a magnetic compass is and how it works.

Discusses how the metric system of measurement was developed, the organization around base units for some types of measurement, and the units used for other parameters.

Provides tables showing how to convert liquid measurements used for cooking and for container labeling. Covers teaspoons up to gallons, as well as conversions to milliliters. Also explains the differences between British and American...

Explains what spectrophotometry is, the types of spectrophotometers, and what they are used for.

Explains the different measurement units that are used in barometers and provides conversion tables.

Provides tables showing how to convert liquid measurements used for cooking between different customary units and metric units. Covers teaspoons up to gallons, as well as conversions to milliliters.

A humorous collection of periodic table puns.

Provides an explanation in five steps of how rainbows form.

Explains what is meant by axial load and how it is calculated. Includes a labeled diagram and an example problem.

Describes what is involved in holding an invention convention, a type of science fair, at school.

Presents some ideas for inventions that 6th graders could try for a science project.

Discusses some history of magnets, the science of magnetism, and interesting facts about them.

Learn the seven colors of the rainbow in order and what each of them symbolizes. Includes a helpful mnemonic.

The uses of each of the five chalcogens, i.e., the oxygen family of elements, are described.

Explains what ionization potential is and how to calculate it.

Describes the different types of optical illusions and their characteristics.

Discusses how optical illusions are actually caused by how our eyes and brains work.

Explains how James Chadwick came to develop his atomic theory by building upon the work of other scientists.

Explains how the fusible plug in a steam engine works and why it is essential for safety reasons.

An interesting discussion of optical illusions, their benefits for children, the skills incorporated in drawing your own, and some different types.

Describes the basic properties of chlorine and lists examples of how it is used in water treatment, medicine, industry, and inside the human body.

Looks at the chemical and physical properties of halogens.

Learn about the characteristics, chemical and physical properties, and uses of halogens.

Learn how noble gases were discovered, what their properties are, and their uses. Includes a chart listing the six noble gases and some details about them.