Bernoulli's principle relates the pressure of a fluid to its elevation and its speed. Bernoulli's equation can be used to approximate these parameters in water, air or any fluid that has very low viscosity. Students learn about the relationships between the components of the Bernoulli equation through real-life engineering examples and practice problems.

This is an important principle involving the movement of a fluid through a pressure difference. Suppose a fluid is moving in a horizontal direction and encounters a pressure difference. This pressure difference will result in a net force, which by Newton's 2nd law will cause an acceleration of the fluid. The fundamental relation,which is known as Bernoulli's principle. This is very similar to the statement we encountered before for a freely falling object, where the gravitational potential energy plus the kinetic energy was constant (i. e., was conserved).

Bernoulli's principle thus says that a rise (fall) in pressure in a flowing fluid must always be accompanied by a decrease (increase) in the speed, and conversely, if an increase (decrease) in , the speed of the fluid results in a decrease (increase) in the pressure. This is at the heart of a number of everyday phenomena. As a very trivial example, Bernouilli's principle is responsible for the fact that a shower curtain gets ``sucked inwards'' when the water is first turned on. What happens is that the increased water/air velocity inside the curtain (relative to the still air on the other side) causes a pressure drop. The pressure difference between the outside and inside causes a net force on the shower curtain which sucks it inward. A more useful example is provided by the functioning of a perfume bottle: squeezing the bulb over the fluid creates a low pressure area due to the higher speed of the air, which subsequently draws the fluid up. This is illustrated in the following figure.

Since 2004, the Bertino Forensics Science Institute has become a leading forensics training programs for teachers in the United States attracting participants from over thirty states and as far away as Myanmar, Taipei and Russia. Our program includes our forensic textbook (Forensic Science: Fundamentals and Investigations), additional teaching resources and teacher education opportunities through workshops, conference presentations, seminars and Webinars. These provide educators with hands-on experiences that inspire and educate students in the principles of scientific inquiry, analysis and creative thinking.

Are you ready to learn something about the world? Then you're ready for Bertolt Brecht, and his ideas about Epic Theatre. Brecht wanted to lean into the idea of theater as a tool to upset and educate the world about stuff like the struggles of the working class and the problematic aspects of capitalism. He wanted to SHOCK people into seeing the world as it is and taking action, rather than merely entertain audiences. But, he messed up, and wrote some pretty entertaining stories, with some really catchy music integrated into it. And do, people ended up whistling Mack the Knife instead of throwing off the shackles of an oppressive social order. To be fair, it is a catchy tune. Today you're going to learn about Brecht, Epic Theater, and a little bit about the House UnAmerican Activities Committee. Because those jerks hauled Brecht up in 1948 to shake him down about whether or not he was a communist.

Fourth graders are independent explorers, full of ideas and opinions. They have an impressive skill set and are ready to go deeper. With that in mind, we’ve gathered together learning links and fun activities that will help kids build skills in literacy, math, science, and social studies—plus some just for fun! This list of 4th grade websites and activities is something kids can easily do at home with their families.

Fifth graders are on the brink of adolescence. They are curious, capable, and ready to tackle the world. With that in mind, we’ve gathered together learning links and fun activities that will help them build skills in literacy, math, science, and social studies—plus some just for fun! This list of 5th grade websites and activities is something kids can easily do at home with their families.

This is a fabulous list of 21 books to teach students about everything from self-regulation to patience.

These books would be a wonderful addition to any classroom library or library and would be excellent as read-aloud stories for students, followed by discussion.

These books are all connected to 21st century skills - especially self management or character/self-regulation.

First grade is an adventure! Kids are excited to learn and always ready for more. With that in mind, we’ve gathered together learning links and fun activities that will help kids build skills in literacy, math, science, and social studies—plus some that are just for enjoyment. This list of first grade websites and activities is something kids can easily do at home with their families.

Welcome to Discover Agriculture's latest video: "Best Green Manure Plants | Green Manure Crops | Organic Farming." Delve into the world of organic farming as we unveil the top green manure plants that can transform your soil health and boost your crop yields naturally. Learn about these incredible cover crops that not only enrich the soil but also promote sustainability in agriculture. Join us to explore the benefits and techniques of incorporating green manure into your farming practices. Subscribe for more valuable insights into modern and eco-friendly agricultural methods.

Why this is the best playdough recipe:
It’s easy to make
It will last for months if stored in a sealed container or bag
It’s inexpensive
The texture is divine. It’s soft, pliable, and fun to work with.

It’s fun to be five! Here is our list of favorite kindergarten websites and activities that kids can enjoy at home with their families. We’ve gathered together learning links and fun activities that will help kids build skills in literacy, math, science, and social studies—plus some that are just for enjoyment.

Second graders are full of curiosity and enthusiasm for learning. Parents can supplement any education with these amazing second grade websites and activities kids can enjoy at home with their families. (They won’t even know they’re learning!) These learning links and fun activities will help kids build skills in literacy, math, science, and social studies—plus we included some that are just for enjoyment.

4Kids.org is a team of educators, writers, technology specialists and students that produces weekly articles and links demonstrating how online learning can be a safe, fun and adventurous activity. This website includes multiple games, videos, crafts, projects and much more.

Third graders are curious, capable and eager to share their ideas. With that in mind, we’ve gathered together learning links and fun activities that will help kids build skills in literacy, math, science, and social studies—plus some just for fun! This list of third grade websites and activities is something kids can easily do at home with their families.

This site offers a collection of some of the best translation apps to help you effectively communicate in foreign language situations. Most apps are available for Apple or Android devices and offer voice and text translation.
The list includes access to:
1. Google Translate - free
2. iTranslate Translator - free
3. SayHi Translate - free
4. Speak & Translate - Translator - free
5. Voice Translator App - free
6. Dialog - Translate Speech - free

Most major art museums around the world offer virtual tours and resources for free. We Are Teachers offers a long list of virtual museum tours, including Benaki Museum, The Frick Collection, The J. Paul Getty Museum, The Los Angeles County Museum of Art (LACMA), The Louvre, Metropolitan Museum of Art’s #MetKids, Musée d’Orsay, Museo Frida Kahlo, The Museum of the World, The National Gallery, The National Gallery of Art, Rijksmuseum, San Francisco Museum of Modern Arts, The Solomon R. Guggenheim Museum, Tate Modern: Andy Warhol Exhibit, The Van Gogh Museum, The Vatican Museums.

Best of History Web Sites, created by EdTechTeacher, is an award-winning portal that contains annotated links to over 1200 history web sites as well as links to hundreds of quality K-12 history lesson plans, history teacher guides, history activities, history games, history quizzes, and more.

Watch beta decay occur for a collection of nuclei or for an individual nucleus.