Science Sampler : The scientific method -- Is it still useful?
Many scientists and science educators contend that a structured scientific method does not exist, while others might argue that the scientific method is too simplistic in its approach to scientific inquiry. This article addresses the dilemmas surrounding the scientific method, and provides suggestions that will enable you to ?meld the method with process skills.?
Positive Linear Function Machine
This activity allows the user to explore simple linear functions; the function is determined by looking for patterns in the outputs.
Energy : An Introduction
This article presents an introduction to the forms and changes in energy. This lesson discusses potential and kinetic energy as well as introducing the 1st and 2nd law of thermodynamics.
Matter: Atoms from Democritus to Dalton
This web page provides an overview of atomic theory from Democritus to Dalton and reviews John Dalton's 4 basic theories on matter. The page is also available in Spanish.
Statistics and probability. Grades 6-8 assessment
This assessment material is designed to help the mentor determine what a grade 6-8 student understands about statistics and probability. The material contains a set of seven short assessment activities that require the use of paper and pens. Also found is an inventory for use by the student's classroom teacher and a mentor planning guide. Answers to assessment questions are correlated to specific activities available in the related instructional unit. Copyright 2005 Eisenhower National Clearingh
PBS provides students in grades 4-7 with oodles of science fair ideas and a science fair tip sheet in this section of the DragonflyTV web site. Overviews of investigations from the television show are offered to help students hone in on an interesting topic and create their own science fair project. Each overview relays a question that a child asked on television, the main steps in his or her experiment, and the results. The overviews also include ideas for further investigations that build on t
Science Sampler : Growth Potential
Students will enjoy carrying out this exciting and challenging research project that combines science with computers and mathematics to investigate how polyacrylate animals change in size over time when placed in water and aqueous salt solutions. The hands-on activity motivates students and provides them with enjoyable and rewarding science project experiences. Here they have an opportunity to solve a problem and use the science inquiry skills of observing, collecting, organizing, and analyzing
Tech Trek: Time For Class
One of the most abstract concepts that you will teach to your students is the concept of time. Usually introduced at the beginning of the school year, the concept of time is taught along with measurements and scientific units such as length, mass, and volume. However, unlike length, mass, and volume, time can be a very confusing concept to understand. This overview of the concept of time also links to internet resources and includes several classroom extension ideas.
Pi = 3.14159...
What is Pi? Who first used Pi? How do you find it? How many digits is it?
Soil Litter: The Food Web
Teachers could incorporate this brief radio program into a variety of learning settings. For example, teachers living in the temperate deciduous forest biome can play the program for students when leaves begin to fall in autumn. The program could also be used whenever students anywhere are learning about food webs or soil. Teachers can choose to use either the audio or text version (or both) to give students listening or reading practice.
2.4 What does relationship mean in systematics? E. Mayr
This unit is concerned with macroevolution – the patterns and processes of evolution above the species level. A crucial consideration in macroevolutionary studies is that of the evolutionary relationships (phylogeny) of the organisms in question. The unit begins with an introduction to the scope of macroevolutionary studies and illustrates methods of reconstructing phylogeny, from both morphological and molecular data.
9 The factory reform movement
Childcare, education, working conditions, healthcare, crime … these issues are hotly debated in today's society. They are also issues that Robert Owen, seen by some as a visionary and by others as a knave and a charlatan, sought to address in the early 1800s. This unit uses a series of essays written by Owen to explore the ideas of this important and controversial figure.
Electrochemical Biosensors: Recommended Definitions and Classifications
This is an IUPAC report on the definition and classification of electrochemical biosensors. It can serve as a primer on biosensors and includes details on construction, different sensor formats and transducer types.
Backstage at The New Theatre Ep 6: The Lonesome West
This week we're on the set of the anarchic and hilarious The Lonesome West by Martin McDonagh. The New Theatre is the only student-run theatre company in the UK. www.newtheatre.org.uk
Are You Really Better Off?
Students consider the existence of environmental issues and how human behavior affects them. They come to recognize that although environmental engineers have many solutions to common challenges (such as air and water pollution), social, economic and policy problems also contribute to the problems. Students also learn that finance, marketing and dealing with people are as essential to engineering as science. Students are briefly introduced to game theory (prisoner’s dilemma) — a way to mathe
Imagine Life without Friction
Students are introduced to the concept of inertia and its application to a world without the force of friction acting on moving objects. When an object is in motion, friction tends to be the force that acts on this object to slow it down and eventually come to a stop. By severely limiting friction through the use of the hover pucks, students learn that the energy of one moving puck is transferred directly to another puck at rest when they collide. Students learn the concept of the conservation o
Designing a Spectroscopy Mission
Students find and calculate the angle that light is transmitted through a holographic diffraction grating using trigonometry. After finding this angle, student teams design and build their own spectrographs, researching and designing a ground- or space-based mission using their creation. At project end, teams present their findings to the class, as if they were making an engineering conference presentation. Student must have completed the associated Building a Fancy Spectrograph activity before
Student are introduced to rivers, and to the components of the water cycle. They think about the effects of communities, sidewalks and roads on the natural flow of rainwater. Students also learn about the role of engineering in community planning and protecting our natural resources.
Students learn the basics about soil, including its formation, characteristics and importance. They are also introduced to soil profiles and how engineers conduct site investigations to learn about soil quality for development, contamination transport, and assessing the general environmental health of an area.
Product Development and the Environment
In this activity, students investigate the life cycle of an engineered product and how the product impacts the environment. They analyze a product using a simple life cycle assessment that assigns fictional numerical values for different steps in the life cycle. They use their analysis to compare the impacts of their product to other products, as well as suggest ways to reduce the product’s environmental impact based on their analysis.