Zookeeper
Teachers can direct students to this material to help them investigate a career as a zookeeper. Having students review this page can be an excellent precursor to a job-shadowing activity. The discussion board's set of questions and answers can be a helpful resource for an activity in which students produce a number of pertinent questions that should be asked of a zookeeper when investigating this field of work.
Building a Bloom
This activity will help students understand algal blooms. They will devise their own experiments to test the effects of nutrients on algal growth, or younger students may follow the steps outlined in a sample activity which is provided. Students will be reminded that they need to have controls and replicates in their experiments. As a result of this activity, students will come to understand the requirements for algal growth, understand the factors that influence the occurrence and duration of a
Classifying Triangles
Place constraints on a triangle and determine what classifications must apply to the triangle.
Trees, soil and water : Journey to Forever
Trees, soil and water: Journey to Forever - healthcare for mountains, trees for deserts, trees for people, forest, forestry, deforestation, erosion, soil conservation, water conservation, desertification This article discusses the interdependence between trees, soil, and water from a biological and conservationist standpoint.
Tides and gravity labs
How does gravity cause tides in the oceans? This section, part of an interactive laboratory series for grades 8-12, introduces students to four activities on tides and gravity that cover critical orbital speed between Earth and the moon, gravitational forces between two bodies, tidal effects from the sun and moon, and the change in tidal levels over time. The activities include hands-on animations of concepts whose variables can be manipulated by students. Questions posed to students include ans
Ecological Footprint: Overshoot
In this two-minute sound segment, the director of the Sustainability Program for the public policy group Redefining Progress discusses the concept of your ecological footprint. This is the amount of nature it takes to support your lifestyle. He says that if we use more than can be replaced by nature we are in a condition called overshoot. He suggests that this can continue for a while but eventually someone will have to pay with a lower standard of living. This site is from an archive of a daily
Nickel Karate
How can a quarter be removed from the bottom of a stack of quarters without lifting or moving the other coins? This material is part of a series of hands-on science activities designed to arouse student interest. Here students investigate the properties of inertia and Newton's first law of motion. The activity includes a description, a list of science process skills and complex reasoning strategies being used, and a compilation of applicable K-12 national science education standards. Also provid
What about the nucleus?
What holds the nucleus together? This web page, part of a tutorial on particle physics, focuses on what possible forces may hold the nucleus together. Students are questioned why the nucleus doesn't blast apart due to all of the positive particles packed so tightly together. Students learn that electromagnetic forces and gravitational forces are not strong enough to hold the nucleus together. Copyright 2005 Eisenhower National Clearinghouse
2.14 Summing up
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.
Decarteret matches pole vault record at Florida State
The Northeastern women's track & field team recorded 15 top-10 marks, including another record-breaking performance by Jillena Decarteret, amidst stiff competition at this weekend's Florida State Relays in Tallahassee, Fla.
Decarteret tied the school record in the pole vault with a winning performance of 4.06m (13'3.75), beating out 20 others for the title. The sophomore's vault matched Laura Chmielewski's mark set back almost seven years ago on May 8, 2004. Decarteret has continued to make upw
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Bees are Master Pollinators and Cannot be Mimicked Cost Effectively
The study of biomimicry and sustainable design promises great benefits in design application. It affords means by which to promote cost-effective, resourceful, non-polluting avenues for new enterprise. These “blueprints” have existed previously as underappreciated strategies by relatively unfamiliar organisms. An important final caveat, however, must still be addressed. One cannot leave the student with the misunderstanding that once copied, species are expendable. Biomimicry is intended to
What is GIS?
Geographic Information Systems (GIS) are an important technology that allows rapid study and use of spatial information. They have become increasingly prevalent in both industry and in the consumer/internet world in the last 20 years. The basis of GIS historically was often in mapping, and so it is important to understand the basis of maps and how to use them as well as why they are different from GIS. Students will learn the value of maps, how to use maps, and the basic components of a GIS. The
Watch Out for the Blind Spots
In this service-learning engineering project, students follow the steps of the engineering design process to design a hearing testing device. More specifically, they design a prototype machine that can be used to test the peripheral vision of partially-blind, pre-verbal children. Students learn about the basics of vision and vision loss. They also learn how a peripheral vision tester for adults works (by testing the static peripheral vision in the four quadrants of the visual field with four con
Bone Mineral Density Math and Beer's Law
In this lesson students revisit the mathematics required to find bone mineral density, to which they were introduced in Lesson 2. They will learn the equation to find intensity and how to use it. There is a sheet of practice problems included which has students practice using this equation.
How Do You Store All This Data?
This lesson allows students to start seeing the data structure they will use to store their images. Students will be introduced to two dimensional arrays and vector classes. Students will be guided to see that a vector class will be the most efficient way of storing the data for their images.
Feel the Stress
Working individually or in groups, students explore the concept of stress (compression) through physical experience and math. They discover why it hurts more to poke themselves with mechanical pencil lead than with an eraser. Then they prove why this is so by using the basic equation for stress and applying the concepts to real engineering problems.
Solar Angles and Tracking Systems
Students learn about the daily and annual cycles of solar angles used in power calculations to maximize photovoltaic power generation. They gain an overview of solar tracking systems that improve PV panel efficiency by following the sun through the sky.
Forms of Linear Equations
The lesson summarizes four forms of equations with which students should be familiar. These include: direct variation, slope-intercept form, standard form, and point-slope form. Students will learn the benefits and uses of each.
