National Nanotechnology Infrastructure Network
Taking a Closer Look at Objects
Take a close look at the world around you with an activity that magnifies everyday objects. Five explorations examine items under intense magnification and pose a series of questions that encourage critical thinking and following...
National Institute of Open Schooling
Colloids
Classes explore colloids through readings and questions in lesson 10 in a series of 36. They learn everything from methods of preparation and properties to how to classify colloids. They finish the lesson by seeing how to apply...
It's About Time
Elements and Their Properties
How did ancient scientists classify elements? Answer this question and others as young chemists create a device to test the properties of various elements. They classify elements as metals or nonmetals, learn to differentiate between...
Teach Engineering
Density Column Lab - Part 1
Mass and density — aren't they the same thing? This activity has groups use balance beams and water displacement to measure several objects. The pupils use the measurements to calculate the density of the objects.
Colorado State University
What Is Energy?
Don't let the energy of your classroom falter! Explore the scientific definition of energy through play. A hands-on lesson focuses on the change of energy from one form to another.