Science NetLinks is a premier K-12 science education resource produced by the American Association for the Advancement of Science. At Science NetLinks, you'll find teaching tools, interactives, podcasts, and hands-on activities, and all of it is free!

Science NetLinks provides K-12 teachers, students, and families with quality resources for teaching and learning science.

All of the resources are Internet based and free to everyone. Lessons and activities can be printed or used online. Many of the interactives, esheets, and tools work great on an interactive white board or in a computer lab. All of the resources are designed to be delivered in a variety of formats and classroom settings.

Science NetLinks' role is to provide a wealth of standards-aligned resources for K-12 science educators, including lesson plans, interactives and reviewed Internet resources. Science NetLinks is a dynamic site with new content being added on a regular basis, so check back often

Science Over Everything is a blog dedicated to helping middle and high school students understand current events in science and why they are relevant to their daily lives. Our site is intended to be a resource for teachers, providing each blog post with classroom activities to help the students comprehend what they are reading and fit the articles in a school's curriculum.

This activity is a forensic based physical science inquiry investigation where students collaborate in groups and use observations to determine how Newton's Laws of Motion are applied in finding evidence in a car and truck trailer accident. Their evidence will be used in a presentation to verify consistency in police and witness reports to support the plantiff or defendent in the court case.

Students use data acquisition equipment to learn about force and displacement in regard to simple and complex machines. In the engineering world, materials and systems are tested by applying forces and measuring the resulting displacements. The relationship between the force applied on a material, and its resulting displacement, is a distinct property of the material, which is measured in order to evaluate the material for correct use in structures and machines.

A think, pair, share activity with Socratic questioning to help students begin to understand rocket propulsion.

This is an introductory physics lab where students will review scientific measurement concepts, and then develop a procedure, in which they will use the concepts of proper precision in measurement and significant figures, to determine the density of a marble.

Explore your own straight-line motion using a motion sensor to generate distance versus time graphs of your own motion. Learn how changes in speed and direction affect the graph, and gain an understanding of how motion can be represented on a graph.

This article describes the basics of thermography or thermal imaging, and how this technique can inspire a data collection activity to teach about heat transfer and energy efficiency.

What do the laws of physics have to do with engineering? Find out in this video segment featuring inventor Dean Kamen and his inventions, the IBOT and the Segway. [8:12]

Semiconductors are the materials that make modern electronics work. Learn about the basic properties of intrinsic and extrinsic or 'doped' semiconductors with several visualizations. Turn a silicon crystal into an insulator or a conductor, create a depletion region between semiconductors, and explore probability waves of an electron in this interactive activity.

This article, written for students in grades 4-5, introduces the concept of albedo and describes the shrinking of Arctic sea ice. Modified versions are available for students in younger grades.

This activity is an investigation of free fall and projectile motion through a track and field situation.

In this adapted ZOOM video segment, cast members calculate how much water they each use during a typical shower. They compare their results to their original predictions.

Students build and use a very basic Coulter electric sensing zone particle counter to count an unknown number of particles in a sample of "paint" to determine if enough particles per ml of "paint" exist to meet a quality standard. In a lab experiment, student teams each build an apparatus and circuit, set up data acquisition equipment, make a salt-soap solution, test liquid flow in the apparatus, take data, and make graphs to count particles.

This video segment from IdahoPTV's D4K lists, describes and shows examples of the 6 simple machines and how they make work easier.

Students apply the mechanical advantages and problem-solving capabilities of six types of simple machines (wedge, wheel and axle, lever, inclined plane, screw, pulley) as they discuss modern structures in the spirit of the engineers and builders of the great pyramids. While learning the steps of the engineering design process, students practice teamwork, creativity and problem solving.

This activity describes a simple clear demonstration of electric generators (Faraday's Law) and electric motors (Lorentz Force). This demonstration can be used as an interactive lecture demonstration.

This is in class lab activity where students will explore the buoyant force.

This lesson has activities where students will learn about buoyancy and explore how hot water rises and cold water sinks. As an extension and real-life application, students will see that glacial run-off is occurring at a rapid pace and the cold glacial water could potentially change ocean currents thus influencing global climates.

This activity is a classroom lab where students learn that cold water is denser and hot water is less dense than room temperature water. Students perform an experiment and relate to their background knowledge to make conjectures.