In this video, Hank talks about the actual reactions happening in solutions--atoms reorganizing themselves to create whole new substances in the processes that make our world the one we know and love. We focus on acids and bases and their proton-exchanging ways.
A lot of ionic compounds dissolve in water, dissociating into individual ions. But when two ions find each other form an insoluble compound, they suddenly fall out of solution in what's called a precipitation reaction. In this episode of Crash Course Chemistry, we learn about precipitation, precipitates, anions, cations, and how to describe and discuss ionic reactions.
In this video, we will explore all the magic in the transfer of electrons. Reduction (gaining electrons) and oxidation (the loss of electrons) combine to form Redox chemistry, which contains the majority of chemical reactions. As electrons jump from atom to atom, they carry energy with them, and that transfer of energy is what makes all life on earth possible.
This is a public domain Spanish language copy of Miguel Cervante's Don Quixote. This site includes an organized table of contents linking the reader to each chapter in the book, making it easy to locate the sections of the text that are recommended by the College Board for the AP Spanish Literature and Culture exam. This resource provides students an opportunity to interpret, restate, and react to what is read in the authentic written text. The text can also be used to describe the main ideas and significant details from the story.
Learning to talk about chemistry can be like learning a foreign language, but Hank is here to help with some straightforward and simple rules to help you learn to speak Chemistrian like a native. In this video, Hank discusses determining and writing formulas, the names of monatomic ions, finding elements on the periodic table, and naming acids and their anions.
In this video, Hank tells how the work of some amazing thinkers combined to produce the Ideal Gas Law, how none of those people were Robert Boyle, and how the ideal gas equation allows you to find out pressure, volume, temperature, or a number of moles.
This site provides interactive activities for Mandarin Chinese pronunciation. It includes two sections that assist with communication, speaking and listening skills: 1) An informative section that covers basic information including Chinese syllables, tones, and Pinyin rules. 2) Interactive games that help students identify tonal differences, match Pinyin to sounds, practice Pinyin spelling and match sounds to Pinyin.
In this video from PBSLearningMedia, students learn to explore Alaska Native culture and learn how to use and create recipes, a type of informational text, in the 11-minute animated story "New Nivagi" from the PBS KIDS series MOLLY OF DENALI™. (Move the cursor over the video progress bar to locate the story at 01:00.) After Molly's dog, Suki eats the first batch of nivagi—Alaska Native ice cream—Molly and her friend Tooey must make another batch of Grandpa Nat's prize-winning recipe in time for the Qyah competition. They search out the ingredients (moose fat, moose meat, strawberries, and carrots) and improvise when they can't find something, using their knowledge of the land and people around them. The result is different but delicious.
In this video from PBSLearningMedia, students discover what happens when Molly's dog, Suki, finds a bone with beautiful markings on it in the 11-minute animated story “Suki's Bone” from the PBS KIDS series MOLLY OF DENALI™. (Move the cursor over the video progress bar to locate the story at 01:00.) After Grandpa Nat's archeologist friend confirms that the bone is an important Alaska Native artifact, Molly and her friends Tooey and Oscar think everything they find might belong in a museum! Integrating Alaska Native culture and history with informational text, the video shows how labels in museums help explain the exhibits, while Molly and her friends also learn about traditional Alaska Native games and tools.
Real-world examples demonstrate the benefits of histograms in this 10-minute video from the Against All Odds statistics series. Data visualization techniques help students understand the practical application of statistics in meteorology and in predicting traffic patterns. Hosted by Pardis Sabeti, this series walks students through understanding how statistics are used in everyday life.
In this video from PBSLearningMedia, students explore Alaska Native culture and the importance of dog sledding in the 11-minute animated story "Tooey's Hero" from the PBS KIDS series MOLLY OF DENALI™. (Move the cursor over the video progress bar to locate the story at 14:00.) Tooey, an aspiring dog musher, is excited to meet his hero, champion racer, and philanthropist Eugene Pike, who is dogsledding to Qyah. Molly and Tooey track his progress using a map and Pike's video blog—two types of informational text—and realize they must act quickly to warn Pike about warming ice conditions. Can they find him in time so that he can finish recreating the historic Great Mail Race?
In this video from PBSLearningMedia, students are welcomed to StinkLand! They learn from Flea that financial irresponsibility can get you stuck at the worst possible time!
In this video from PBSLearningMedia, students have fun learning about money with Blackbeard the Pirate, who learns the hard way that resources are limited.
In this video from PBSLearningMedia, students will learn what goods and services are through Funk music with Megan, Timmy, Tammy, and their trusty mutt!
Use your problem-solving skills to find out if the pot will overflow when Dan adds meatballs to his pasta sauce. This interactive exercise focuses on using the volume equations for cylinders and spheres to figure out the multistep problem of how many meatballs it would take to fill the space left in the pot.
Be sure to view the activity, Meatballs: Volumes of Spheres and Cylinders - Activity (found under Support Materials for Teachers), to use with the video.
In this video from PBSLearningMedia, students see how Scarcity Cat learns to set the price for her stinky cheese. If she prices too low, demand will be too high. If she prices too high, demand will be too low.
We don't live in a perfect world, and neither do gases. It would be great if their particles always fulfilled the assumptions of the ideal gas law, and we could use PV=nRT to get the right answer every time. Unfortunately, the ideal gas law (like our culture) has unrealistic expectations when it comes to size and attraction. It assumes that particles do not have size at all and that they never attract each other. The ideal gas "law" often becomes little more than the ideal gas estimate when it comes to what gases do naturally. It's a close enough estimate in enough situations that it's very valuable to know. In this episode, Hank goes through a bunch of calculations according to the ideal gas law so you can get familiar with it.
In this video, Hank explains how the constants in the gas law aren't all that constant. The ideal gas law has to be corrected for volume because atoms and molecules take up space and for pressure because they're attracted to each other. Einstein was behind a lot more of what we know today than most people realize, but a Dutch scientist named Johannes van der Waals figured out those correction factors in the late 19th century and earned a Nobel Prize for his efforts.
In this video, we continue to spend quality time with gases, more deeply investigating some principles regarding pressure--including John Dalton's Law of Partial Pressures, vapor pressure - and demonstrating the method for collecting gas over water.
In this video from PBSLearningMedia, students watch Megan and the twins meet rap superstar Kevin, who tries to pay for candy with street credit?
As with most things in chemistry (and also in life), how a gas moves is more complex than it at first appears. In this episode, Hank describes what it means when we talk about the velocity of a gas. To understand gas velocity, we have to know what factors affect it and how. Hank also teaches you about effusion, diffusion, and concentration gradients, before showing off a cool experiment that physically demonstrates the things you have just learned. Sound exciting enough for you? Let's get started.
This math brainteaser challenges you to find a simple, elegant solution to a seemingly complex problem! Can you figure it out?
In this video, Hank takes us on a quick tour of how thermodynamics is applied in chemistry using his toy trebuchet as an example. He explores the vast, somewhat confusing, concept that everything is comprised of energy--even mass.
In this video from PBSLearningMedia, students explore Alaska Native culture and values using "First Fish," an 11-minute animated story from the PBS KIDS series MOLLY OF DENALI™. (Move the cursor over the video progress bar to locate the story at 01:00.) Before Molly catches her first fish, a childhood milestone that is as important today as it was in the past, she researches facts about salmon to help her. When Molly finally succeeds, she follows the tradition of honoring one's elders by offering her prized catch to Grandpa Nat. As students examine values, such as sharing with others and respecting elders, they learn social-emotional skills as well as the importance in Alaska Native culture of connecting to all living things.
In this episode, you'll learn what the state function is, and how it varies from a path-dependent function; why enthalpy change is different from heat; that bonds are energy and to form and break them they release and absorb heat to and from their environment. You'll get the quickest introduction to calorimetry ever (more on that in upcoming episodes) and learn the power of Hess's Law and how to use Germain Hess's concept of the standard enthalpy of formation to calculate exactly how much heat is produced by any chemical reaction.
Use a tree diagram to find the probability that a set of triplets will be all girls in this interactive from MPT. In the accompanying classroom activity, students find the probability of various outcomes of compound events involving a set of dice, such as the probability of rolling doubles and the probability of rolling at least one “2.” They share solution strategies, including methods of representing sample spaces for these compound events. To get the most from the lesson, students should have experience developing and using uniform probability models. For a longer self-paced student tutorial using this media, see "Tree Diagrams" on Thinkport from Maryland Public Television.
In this video from PBSLearningMedia, students will develop a definition for the word "warrior," investigate what "warrior" means to Native Americans and compare and contrast their understanding of the word warrior to Native Americans’ concept of a warrior.
Instructional Resources
**Sensitive: This resource contains material that may be sensitive for some students. Teachers should exercise discretion in evaluating whether this resource is suitable for their class.
In this short practice, students review how to simplify fractions, or reduce fractions to their lowest terms, and practice with an interactive game.
Uncover the secret behind how a square-wheeled tricycle can work at the National Museum of Mathematics. This interactive exercise focuses on working with the radius of various circles to find the circumference and area as well as challenging you to find the distance a square wheel travels around the track.
This resource is part of the Math at the Core: Middle School collection.
Dinosaurs need to drink a LOT of water, and this event showcases their incredible sipping skills! The goal of the game is to pair the right sized cup with the right dinosaur. This game will help students compare object attributes like length and volume in a fun way.
This family and communities thematic lesson examines how technology affects families and communities while focusing on interpretative, presentational, and interpersonal skills at the intermediate, mid to intermediate-high proficiency range. Students will gather information from an authentic text and audio resource, identify main ideas, and infer the meanings of unfamiliar words. Students are guided through a series of interpersonal conversation-based tasks before presenting their findings orally or in writing.
In this video from PBSLearningMedia, Craig Benzine teaches students about the U.S. government's separation of powers and the system of checks and balances. In theory, the legislative branch, the executive branch, and the judicial branch are designed to keep each other in check and to keep any branch from becoming too powerful. In reality, the system was designed to keep the president from becoming some kind of autocrat. For the most part, it has worked.
In this video from PBSLearningMedia, students learn Native Americans used special traps to catch fish during the springtime when certain species of fish would migrate. Learn how these fish traps worked and how Native Americans utilized every part of a fish.
In this video from PBSLearningMedia, students learn the Apollo Program got us to the moon! Apollo Elementary is one of the many schools in Brevard County with a space-related name. The history of the mission is very important to the school and to the space coast.
In this video from PBSLearningMedia, Blossom and Snappy help Digit mail a surprise package to Robbie. They visit the post office and postal processing plant to see how it all works. For Americans, the postal service symbolizes the connection across vast distances that allows us to imagine a unified nation even as we are separated geographically, culturally, and politically. The principle of equal access to the mail—the fact that a letter to or from anywhere in the country costs $0.55—has made the postal system an icon of equality more broadly.
