United Nations
United Nations Cyberschoolbus: Cities of Today, Cities of Tomorrow
The six teaching units of this site provide an overview of urbanization, its history, its potential, its problems. The site has lots of activities, and a game.
TeachEngineering
Teach Engineering: What Floats Your Boat?
Students use modeling clay, a material that is denser than water and thus ordinarily sinks in water, to discover the principle of buoyancy. They begin by designing and building boats out of clay that will float in water, and then refine...
Chemistry Collective
Chem Collective: Creating a Stock Solution
In this activity, students use the virtual lab to create dilute solutions from a concentrated stock solution of acids or bases. They must first calculate the correct volumes of concentrated acid solution and water to mix together to...
McREL International
Mc Rel: Whelmer #64 Learning Activity: Liquid Rainbow
An easy to do activity that investigates density and solubility. The activity is presented in lesson plan format that meets NSES standards.
Math.com
Math.com: The Basics of Algebra: Properties of Real Numbers
Students learn about the properties of real numbers through this algebra resource. A learning tutorial and practice problems to check for comprehension of the math concepts are included.
Other
Prevent Disease: Exercise & Preventing Disease
This web-article discusses how exercise not only helps prevent disease, but also improves the health of those who have certain medical conditions. Learn how physical activity helps individuals battle cardiovascular and musculoskeletal...
CK-12 Foundation
Ck 12: Internal Resistance of a Battery
[Free Registration/Login may be required to access all resource tools.] Batteries have both an ideal internal voltage and a terminal voltage, which is less due to internal resistance. This lesson presents sample problems and a video...
Illustrative Mathematics
Illustrative Mathematics: G Mg How Many Leaves on a Tree? (Version 2)
In this task, young scholars must estimate the number of leaves on a large tree, taking into account various complex factors such as the area shaded by the tree, the area of irregularly shaped leaves, the uneven distribution of leaves,...
CK-12 Foundation
Ck 12: Pressure in Fluids
[Free Registration/Login may be required to access all resource tools.] Students will develop an understanding of density and pressure, and how to solve problems involving them.
Science Education Resource Center at Carleton College
Serc: "Does It Float?" an Inquiry Based Activity Investigating Buoyancy
This is an inquiry-based activity in which students will need to work together as a class to solve the following problem: they must construct a "boat" entirely out of modeling clay that is capable of supporting 150 grams of cargo without...
Other
Ask Numbers: Measurement Conversion Calculators and Charts
What kind of unit conversion would you like to do? This site will allow you to do a multitude of conversions. Just click on the specific measurement you are needing to convert. It also provides a history of measurements and a chart of...
Nobel Media AB
The Nobel Prize: Lord Rayleigh Biographical
At this site from the Nobel e-Museum, you can read about the scientific work of Lord Rayleigh (1842-1919 CE). This article includes information on his education and experiments with light and sound waves.
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