Curated OER
Introduction to Density
Seventh graders define density in their own words. In this physics lesson, 7th graders solve density problems using its mathematical formula. They explain why some objects flow and some sink.
Curated OER
Worksheet 1
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.
Science and Mathematics Initiative for Learning Enhancement (SMILE)
Smile: Four Air Pressure Labs
Four lab exercises from the Illinois Institute of Technology demonstrating air pressure are given.
Annenberg Foundation
Annenberg Learner: Virtual Particle Lab: Compressibility of Air
Explore the particle model of matter. Run the simulations and see if you can predict the results.
Science Education Resource Center at Carleton College
Serc: Balloon Rockets
In this activity, students will learn that compressed air creates pressure to propel an air balloon. Students will create a graph in their science journals based on the relationship between the number of air pumps and the distance the...
NASA
Nasa: Gas Properties Definitions
Use this site to learn about basic gas properties including motion, viscosity, and compressibility. Includes links to activities for all ages.
Georgia State University
Georgia State University: Hyper Physics: Speed of Sound
Physics tutorial on measuring the speed of sound in dry air. An interactive form allows the student to practice solving problems involving the temperature dependence of the speed of sound.
Other
Warm Air: Central Air Conditioning
The operation of conventional air conditioners are described. Their parts and the refrigerant/heat exchange cycle is discussed. The use of alternative geothermal systems are explained.
Center of Science and Industry
Cosi Columbus: Hover Cup
Science experiment in which you make a hovercraft, a machine that uses compressed air to do work, from a paper cup. Includes full list of materials, procedures, and scientific explanation of how air flow can minimize friction and cause...
Massachusetts Institute of Technology
Mit: Inventor of the Week: George Westinghouse
This brief article on the life and contributions of George Westinghouse (1846-1914) includes a picture. Read about his air brake as well as his development of the alternating current system.
Other
Avatar Consultants, Inc: Definitions of Sound
Sound is defined and characterized as a wave consisting of oscillations in pressure of a medium. Includes graphics and links to further information.
Library of Congress
Loc: About George Westinghouse
This is a detailed biography about George Westinghouse with a link to an article about Westinghouse from the Wilmerding News, 1904. Read about his many inventions that improved railroad safety.
Science Education Resource Center at Carleton College
Serc: The Optimal Bottle Rocket Launch
Students build rocket models designed for gaining the maximum height. They use a compressed air rocket launcher and 2-liter plastic bottles. They will also use an online simulator to help them make predictions and adjustments to their...
Physics Hypertextbook
The Physics Hypertextbook: Refrigerators
This resource provides a detailed discussion about how refrigerators work. Also includes a history of the invention of refrigerators, and the physics behind how they work.
Other
D&t Online: Pneumatics
This site explains the basic concepts of pneumatics, which is often used in manufacturing.