Nutrien Ag Solutions' Manager of Agronomic Services Brianna Lummerding demonstrates some of the ways to take an effective soils sample.
Nutrien Ag Solutions' Manager of Agronomic Services Brianna Lummerding talks about soil variability in a field and how it can affect productivity.
Whether you’re wondering how to handle a specific challenge, just figuring out your child-raising approach, or ready to tear your hair out, you’ve come to the right place.
All art is political in the sense that all art takes place in the public arena and engages with an already existing ideology. Chinese artist, Ai Weiwei, offers an important contemporary example. The news that Chinese artist Ai Weiwei has been detained by authorities has prompted significant concern. Ai Weiwei has ben arrested by the Chinese authorities.
Curate your own exhibition at the Art Gallery of Ontario; swim with African penguins at the San Diego Zoo; travel back in time at the Louvre; visit the Canadian Museum of History; blast into outer space with NASA. This site offers all of these opportunities for your student to experience.
Air Compressor Basics
How Do Air Compressors Work?
How does an Air Compressor work?
How a basic compressor works?
What is Compressor ? Rotary Compressor
Air compressors work by forcing atmospheric air under pressure to create potential energy that can be stored in a tank for later use. Just like an open balloon, the pressure builds up when the compressed air is deliberately released, converting the potential energy into usable kinetic energy. From there, this energy transfer can be harnessed to power various pneumatic tools.
Industrial air compressors work similarly to combustion engines. Generally, air compressor operation requires a pump cylinder, piston and crankshaft to transfer energy for a wide variety of tasks.
The AirData Web site gives you access to air pollution data for the entire United States. Want to know the highest ozone level measured in your state last year? Ever wonder where air pollution monitoring sites are located? Are there sources of air pollution in your town? You can find out here! AirData produces reports and maps of air pollution data based on criteria that you specify.
By watching and performing several simple experiments, students develop an understanding of the properties of air: it has mass, it takes up space, it can move, it exerts pressure, it can do work.
Students are introduced to measuring and identifying sources of air pollution, as well as how environmental engineers try to control and limit the amount of air pollution. In Part 1, students are introduced to nitrogen dioxide as an air pollutant and how it is quantified. Major sources are identified, using EPA bar graphs. Students identify major cities and determine their latitudes and longitudes. They estimate NO2 values from color maps showing monthly NO2 averages from two sources: a NASA satellite and the WSU forecast model AIRPACT. In Part 2, students continue to estimate NO2 values from color maps and use Excel to calculate differences and ratios to determine the model's performance. They gain experience working with very large numbers written in scientific notation, as well as spreadsheet application capabilities.
Air pressure is pushing on us all the time although we do not usually notice it. In this activity, students learn about the units of pressure and get a sense of just how much air pressure is pushing on them.
Students engage in hands-on, true-to-life research experiences on air quality topics chosen for personal interest through a unit composed of one lesson and five associated activities. Using a project-based learning approach suitable for secondary science classrooms and low-cost air quality monitors, students gain the background and skills needed to conduct their own air quality research projects. The curriculum provides: 1) an introduction to air quality science, 2) data collection practice, 3) data analysis practice, 4) help planning and conducting a research project and 5) guidance in interpreting data and presenting research in professional poster format. The comprehensive curriculum requires no pre-requisite knowledge of air quality science or engineering. This curriculum takes advantage of low-cost, next-generation, open-source air quality monitors called Pods. These monitors were developed in a mechanical engineering lab at the University of Colorado Boulder and are used for academic research as well as education and outreach. The monitors are made available for use with this curriculum through AQ-IQ Kits that may be rented from the university by teachers. Alternatively, nearly the entire unit, including the student-directed projects, could also be completed without an air quality monitor. For example, students can design research projects that utilize existing air quality data instead of collecting their own, which is highly feasible since much data is publically available. In addition, other low-cost monitors could be used instead of the Pods. Also, the curriculum is intentionally flexible, so that the lesson and its activities can be used individually. See the Other section for details about the Pods and ideas for alternative equipment, usage without air quality monitors, and adjustments to individually teach the lesson and activities.
Students are introduced to air masses, with an emphasis on the differences between and characteristics of high- versus low-pressure air systems. Students also hear about weather forecasting instrumentation and how engineers work to improve these instruments for atmospheric measurements on Earth and in space.
This picture book is designed to introduce children to the Earth's atmosphere and its importance to life on Earth. It also introduces how the addition of new gases (e.g., ozone) contributes to changing the quality of air we breathe. With an understanding of how our atmosphere works, we can begin to understand how our activities may be contributing to some of those changes in air quality.
Students learn what causes air pollution and how to investigate the different pollutants that exist, such as toxic gases and particulate matter. They investigate the technologies developed by engineers to reduce air pollution.
NASA's Earth Observatory "Aircraft Contrails" webpage summarizes the key mechanism, measurements, and predictions of how cirrus clouds produced by contrails contribute to global warming. The page also includes an image showing a large number of contrails produced over the southeastern U. S.
Science Background:
An object in flight is constantly engaging in a tug of war between the opposing forces of lift, weight (gravity), thrust and drag. Flight depends on these forces – whether the lift force is greater than the weight force and whether thrust is greater than drag (friction) forces.
Lift and drag are considered aerodynamic forces because they exist due to the movement of an object (such as a plane) through the air. The weight pulls down on the plane opposing the lift created by air flowing over the wing. Thrust is generated by the propeller (engine) and opposes drag caused by air resistance. During take-off, thrust must counteract drag and lift must counteract the weight before the plane can become airborne.
If a plane or bird flies straight at a constant speed:
• lift force upwards = weight force downwards (so the plane/bird stays at a constant height)
• thrust force forwards = opposing force of drag (so the plane/bird stays at a constant speed).
"Comment ajuster la position de début et de fin d'un servomoteur à l'intérieur d'une chaussette servo."
Akiak is the story of a dog that desires to win the Iditarod with her owner, Mick. Akiak is injured and is disqualified from finishing the race, but she follows Mich and the team of dogs to the finish line. This lesson provides teachers with support for using text-dependent questions to help students derive big ideas and key understandings while developing vocabulary.
Today we’re going to take a step back from programming and discuss the person who formulated many of the theoretical concepts that underlie modern computation - the father of computer science himself: Alan Turing. Now normally we try to avoid “Great Man" history in Crash Course because truthfully all milestones in humanity are much more complex than just an individual or through a single lens - but for Turing we are going to make an exception. From his theoretical Turing Machine and work on the Bombe to break Nazi Enigma codes during World War II, to his contributions in the field of Artificial Intelligence (before it was even called that), Alan Turing helped inspire the first generation of computer scientists - despite a life tragically cut short.
This is a database of lessons and units searchable by content and cultural standards, cultural region and grade level.
Included are lessons and units on:
Whouy Sze Kuinalth - "Teaching Our Many Grandchildren"
Tauhna Cauyalitahtug - (To Make a Drum)
Math Story Problems
St. Lawrence Island Rain Parka
Winds and Weather
Willow
Driftwood
Snowshoes
Moose
Plants of the Tundra
Animal Classification for Yup'ik Region
Rabbit Snaring
The Right Tool for the Job - Fishing Tools and Technology
Blackfish
Family Tree
Medicinal Plants of the Kodiak Alutiiq Archipelago
Beaver in Interior Alaska
Digging and Preparing Spruce Roots
Moose in Interior Alaska
Birds Around the Village
Dog Salmon
This site also has the "Handbook for Culturally Responsive Science Curriculum".