Presents an investigation of centrifugal forces and frictional forces using a rotary motion probe (RMP). (CCM)

Decscribes a project to make kaleidoscopes. (CCM)

Have you ever tucked away a piece of fruit for later and returned to find it past its prime? Or found some leftovers that had outlived their welcome in the refrigerator? Whether it's fresh or processed, all food eventually spoils. Methods such as freezing, canning, and the use of preservatives lengthen the lifespan of foods, and we--and the modern…

A fly is buzzing around in the kitchen. You sneak up on it with a flyswatter, but just as you get close to it, it flies away. What makes flies and other insects so good at escaping from danger? The fact that insects have eyesight that can easily detect moving objects is one of the things that help them survive. In this month's Science Shorts,…

Rain, sun, snow, sleet, wind... the weather affects everyone in some way every day, and observing weather is a terrific activity to attune children to the natural world. It is also a great way for children to practice skills in gathering and recording information and to learn how to use simple tools in a standardized fashion. What better way to…

Throughout the study described in this article, the author aims to foster in students an attitude shift--not just an ability to memorize or label a picture of a microscope but an understanding of what scientists do and how scientists build on previous discoveries. Great scientists were ordinary people--like themselves--who did extraordinary…

A tornado is a rotating, funnel-shaped column of air, which extends from a thunderstorm to the ground. The winds of a tornado can reach up to 480 km per hour. This is about five times faster than a car driving on a highway. Tornadoes can be almost invisible until they pick up dust and debris. This article describes an activity that stimulates…

Cemeteries can be outdoor museums, teeming with valuable information that tells a story. They provide archaeologists with an opportunity to examine how artifacts (tombstones and monuments) reflect cultural change and how societies differ from one another. Archaeologists can record information about the size, shape, symbols, and weathering of the…

Venture into the author's seventh-grade classroom on any given day, and one is likely to see students hypothesizing, designing experiments to test their explanations, analyzing data, writing formal publications of results, and debating over scientific procedures in an attempt to justify their control of variables. Students are motivated, on-task,…

This article suggests several ways teachers can get their students really excited about science by bringing scientists to the science fair in a different role than the traditional "judge." With a bit more effort, scientists can become actively involved as presenters of hands-on activities. This article discusses: what happens when the tables are…

This article briefly describes an activity for students to illustrate the relationship between orbital period and orbital motion. To do this, students should calculate the degrees per day that planets travel and then graph them as a function of orbital time. A brief list of resources is also included.

It is possible to create an environment in which students are engaged in learning a topic like photosynthesis but are not doing a laboratory activity? Is there some way for students to get content and the history of a topic without a lecture? The activity described in this article is a result of the author asking these very questions. Several…

Classical phenylketonuria (PKU) is caused by a lack activity in the enzyme phenylalanine hydroxylase, leading to elevated concentrations of phenylalanine in the blood. A simple demonstration and three advanced demonstrations of a spot test for phenylpyruvic acid and its relationship to phenylketonuria are given.

Modern low-cost data acquisition systems enable pupils to study the voltage-current characteristics of a wide range of different materials and devices in a quick and convenient way. In particular, it is possible to study materials, such as meat and vegetables, not normally associated with school physics experiments.

Few European countries have developed a broad strategic framework to raise the profile of science in education and wider society. However, a wide range of initiatives have been implemented in many countries. The impact of these various activities is nevertheless difficult to measure. School partnerships with science-related organisations are…