In this earth science worksheet, students match each vocabulary term, that names something specific related to earth science, with its correct description found in the right column. They identify different types of scientists and various...

In this respiratory system, students describe bronchitis, emphysema, and lung cancer by completing 26 fill in the blank statements.

In this worksheet, students calculate the density, molar mass, and volume of given word problems. Students also calculate the partial pressure of the gases given in the particular problem.

Seventh graders are introduced to Newton's Third Law of Motion.  In this physics lesson students examine the concept of thrust as one of the forces acting on aircraft. 

Students investigate the basic principles of air pressure.  In this experimental lesson students use materials to create several different experiments that help to explain air pressure and friction.

Seventh graders participate in an experiment using syringes.  In this physics instructional activity students demonstrate the movement and principles of pneumatics and hydraulics.

In this quartz worksheet, students read about the chemical composition of quartz and its commercial applications. Then students complete 7 short answer questions.

Students study scientific names and descriptions of forces.  In this motion lesson students organize information into a graphic organizer then teach it to other students. 

Students identify, describe and indicate direction and relative magnitude of forces.  In this motion lesson students work in groups to identify the force that is described to them. 

Fifth graders create a Cartesian Diver model made from plastic soap bottle and medicine dropper.  For this incompressible liquid lesson, 5th graders experiment with jugs of water to demonstrate Pascal's Law, Boyle's Law and...

Students demonstrate the motion of waves. In this wave lesson, students demonstrate the various attributes to waves and the properties through a variety of hands-on activities.

Students construct a volcano model. In this earth science lesson, students determine the structure and build of their volcano. They explain the danger of volcanic eruptions.

Seventh graders define density in their own words. In this physics instructional activity, 7th graders solve density problems using its mathematical formula. They explain why some objects flow and some sink.

Students observe the cracks in school walls and pavements. In this geometry lesson, students explore the factors to be considered before building a structure. They complete a graphing and calculation worksheet after the lesson.

Students perform tests on different soil samples. In this earth science lesson, students classify the soil into groups according to test results. They write a lab report following a certain criteria.

In this project you'll learn about how digital image files are encoded, and how digital images can be compressed so that the files take up less storage space and can be transmitted more quickly. You will also measure the quality of...

In this project you'll learn about how digital image files are encoded, and compressed. You will also measure the quality of compressed and uncompressed images, which will give you important insights into the tradeoffs between file size...

Learn how compressed formats such as zip, gzip, or gif images are all based on a method called Ziv-Lempel coding, which turns out to be an interesting exercise in finding patterns in text.

Compare the strengths and weaknesses of different digital image formats. How does the amount of compression affect a JPEG image? What happens when you save a JPEG image multiple times?

Here's a project that involves a different kind of sandbox than the ones you usually think of. This one has a moving wall inside, acting like a piston, to compress the sand. You can make layers using two different colors of sand, and...

Do you love to listen to your MP3 player while you're exercising, or listen to songs on the Internet? The relatively recent development of MP3 technology has made it possible to take a stack of CD's and store them on a device no bigger...

Students learn about nanocomposites, compression and strain as they design and program robots that compress materials. Student groups conduct experiments to determine how many LEGO MINDSTORMS NXT motor rotations it takes to compress soft...

Students explore how tension and compression forces act on three different bridge types. Using sponges, cardboard and string, they create models of beam, arch and suspension bridges and apply forces to understand how they disperse or...

Practice using lossless text and image compression algorithms and considering what data can be compressed most easily.