Meteor crater map
A Landsat image of the world with crater locations flagged. One can zoom in on any location.
Author(s): Creator not set

Polar Bears International Photo and Video Gallery
This page links to video intervews of the researchers and photographers, videos of polar bears taken with the polar cam, and images of polar bears.
Author(s): Creator not set

Tortoise and Hare Race
users step through the tortoise and hare race, based on Zeno's paradox, to learn about the multiplication of fractions and about convergence of an infinite sequence of numbers.
Author(s): The Shodor Education Foundation, Inc.

Finding Patterns
Build a pattern to complete a sequence of patterns. Study a sequence of three patterns of squares in a grid and build the fourth pattern of the sequence in a grid.
Author(s): Creator not set

T.P. Away
What's a quick way to unroll a roll of toilet paper? This material is part of a series of hands-on science activities designed to arouse student interest. Here students use Bernoulli's principle and an electric leaf blower to force air over the top of the toilet paper to quickly unroll it. 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 provided are c
Author(s): Mid-continent Research for Education and Learning

Atmosphere
What is this atmosphere that surrounds the Earth? This instructional tutorial, part of an interactive laboratory series for grades 8-12, introduces students to the structure, effects, and components of the atmosphere. Here students investigate the composition of the atmosphere; effects of temperature, pressure, and ozone; the greenhouse effect; and how Earth compares with other planets. Interactive activities present students with opportunities to explore ideas and answer questions about the atm
Author(s): University of Utah. Astrophysics Science Project I

Observe an exploded star at different wavelengths
This Earth science resource enables students to observe and compare the appearance of the Crab Nebula under different wavelengths. The introduction explains how the nebula is the remains of an exploded star (supernova). It also reveals how temperature variations in the nebula are detected by different wavelengths. Students are instructed to move the cursor across the spectrum to see images of the nebula captured using radio and microwaves; infrared, visible, and ultraviolet light; and gamma rays
Author(s): TERC. Center for Earth and Space Science Education

English Language Learners in the Science Classroom
What can we as teachers do to help English Language Learners (ELLs) learn science when we do not speak their languages or know their cultures? Both pre- and in-service teachers have successfully used the following strategies in teaching in teaching language and cultural minorities. These strategies can be, and often are, used by ESL (English as a Second Language) teachers in pull-out programs.
Author(s): Caroline Beller,Felicia Lincoln

Observe solar eclipses
This Earth science animation helps students compare three types of solar eclipses: total, partial, and annular. The introduction explains how the type of eclipse is determined by variations in distance and alignment between the Earth, sun, and moon. The animation follows the events of all three eclipses concurrently. Movie controls allow students to repeat, pause, or step through the animation, which can give students more time to compare the eclipse sequences. Copyright 2005 Eisenhower National
Author(s): TERC. Center for Earth and Space Science Education

Quick take on Pheonix Mission to Mars : follow the water
Following water continues to guide exploration even as space is explored find water and you might find life itself. One such mission that is following the water is the Phoenix Mars Lander project. On August 4, 2007, the lander was launched on its 10-month journey to the Red Planet. Phoenix will land on the northern plains of Mars and dig into the soil and water-ice seeking the Martian Holy Grail: water and possible life-supporting conditions.
Author(s): Creator not set

How Students Learn: Mathematics in the Classroom
This book, available online free in pdf format, builds on the discoveries detailed in the best-selling How People Learn. The authors aim to present these findings in a way that teachers can use immediately, to revitalize their work in the mathematics classroom for even greater effectiveness. The general theme is teaching math to generate real insight and reasoning in math students. It also features illustrated suggestions for classroom activities.
Author(s): Creator not set

This Planet Really Rocks
This ThinkQuest Junior site contains information and activities about rocks and minerals. Included is information about what a rock is, the major characteristics with examples of sedimentary, metamorphic, and igneous rocks, the rock cycle, the differences between rocks and minerals, how to identify minerals (color, luster, streak, cleavager, hardness, and specific gravity), and the Mohs Scale. Facts about common minerals and their properties, how rocks and minerals are important, and their uses
Author(s): ThinkQuest

Geometry Construction Reference
The basics of compass and straightedge construction, with notes about The Instruments and What is a construction? Construct the perpendicular bisector or the midpoint of a line segment; given a point on a line, construct a perpendicular line through the given point; given a point not on a line, construct a perpendicular line through the given point; construct the bisector of an angle; an angle congruent to a given angle; a line through a given point, parallel to a given line; an equilateral tria
Author(s): Math Forum

Visualizing the Metric System
What are some common things that could be used to approximate lengths for a visual picture of the different lengths in the metric system?
Author(s): Math Forum,Sheldon

The Pythagorean Theorem
This math site has students try to figure out the Pythagorean Theorem by themselves. Included are review pages, five clues to help them find the relationship, a section that compares their results to other students, a section that gives historical information, and examples and activities for students to solve. Each clue page allows students to check to see if they have the formula correctly relating to the three sides of the right triangle. A template page that contains figures used in three of
Author(s): Arcytech,Educational Java Programs,Jacobo Bulaevsk

Beginner's guide to aerodynamics
This resource is a guide to aerodynamics that defines aerodynamics and it principle applications. The resource provides an in-depth overview of equations of motion, free falling, air resistance, motions, gas properties, and atmosphere. Aerodynamics affects on airliners, model rockets, and a beach ball is discussed.
Author(s): Thomas Benson

Minerals
This site provides an in-depth look at mineral properties and identification. An alphabetical listing of common minerals allows the user to see a picture and view physical properties of the particular mineral. Properties of minerals are explained, including cleavage, hardness, crystal form, and luster. There are also downloadable labs for crystal models and mineral data sheets. Dichotomous and hardness keys are given for easier mineral identification.
Author(s): Creator not set

Graphing for Area
Middle School, difficulty level 2. Graph six points and find the area of the resulting hexagon.
Author(s): Math Forum,Judy Ann Brown

Drift Seeds And Drift Fruits : Seeds That Ride The Ocean Currents
This essay explores seed dispersal by water and describes some of the physical adaptations that evolution has produced in the seeds and fruits that travel this way. There is a background essay, discussion questions, state and national standards, and links to related Teacher's Domain resources.
Author(s): Creator not set

Simple Plot
This applet allows the user to input a series of (x,y) ordered pairs and plot them either as a connected function or unconnected data points.
Author(s): The Shodor Education Foundation, Inc.