This video is the second lesson in the How Cold Is Cold? BLOSSOMS series and examines the properties of materials under low temperature conditions. [32:19]

This video lesson is part of a two-part series and introduces the concept of temperature. Temperature can be a challenging concept to convey since our perception is tied to words that are relative to our own experience, which varies quite a lot. [19:18]

The objective of this lesson is to introduce students to one of the most important issues affecting human life and health in the 21st century, the application of modern biotechnology to the problems of environmental pollution. [22:51] (English Subtitles)

By viewing high-speed videos of raindrops hitting mosquitos, learn how insects are able to fly in the rain by calculating the impact forces of raindrops on flying mosquitoes.

This video lesson introduces students to the concept of size. It looks at how to classify objects based on their size and how the size of an object affects its properties and behavior. In our world, we have many different sizes - starting from quarks and subatomic particles, to atoms and molecules, all the way to aggregates and huge objects like ourselves, and beyond to larger bodies like mountains, planets, stars, galaxies and even to the whole universe. [42:13]

Students learn how scientists in several fields work together to take part in the steps of anti-cancer drug discovery.

This learning video addresses a particular problem of selection bias, a statistical bias in which there is an error in choosing the individuals or groups to make broader inferences. Rather than delve into this broad topic via formal statistics, we investigate how it may appear in our everyday lives, sometimes distorting our perceptions of people, places and events, unless we are careful. [23:24]

Could a Tyrannosaurus be created in a modern-day lab? Join paleontologist, Jack Horner, in using protein sequencing to find the closest relative to the T-Rex, and then hypothetically re-creating a specimen in the lab.

This lesson presents the basics of aerodynamics by using kite flying as an example, i.e., forces acting on a flying object. [39:36]

A collection of STEM video lessons for high school classrooms from the Blended Learning Open Source Science or Math Studies. First, take the teacher video tour, and then search the library by subject area, keyword, or standards to find classroom supplements which will support 21st century student learning.

This video aims to connect many topics in computer science to reach the writing of an application that can do something useful in actual life. The student will get to know the concept of ciphering and hiding, will have a glance at the American Standard Code for Information Interchange table "ASCII", will understand the structure of bitmap, and learn how color is stored. Also students will learn how to do some byte and bit level operations, and how to manipulate binary files. They will then use Visual Basic, or another programming language, to write a Windows application that ciphers and hides a computer file inside a digital picture or a photo. [26:11] (English Subtitles)

This lesson will explain the process of data transfer throughout computer systems and the form the data gets transferred into. Additionally, we will touch on some factors that alter the transfer speed. [23:18] (English Subtitles)

Students learn about the growth of cancer through an analogy of a kitchen with an appliance running out of control. Together, student learners investigate case studies of three patients with lung cancer and determine the cell mutation which exists in each case.

This video lesson provides a more advanced approach to cryptography than the more experiential Sturtevant cryptography lesson also in the BLOSSOMS video library. Students will learn about the history of cryptography, and they will also learn how powerful even a limited knowledge of mathematics can be as they work through the math used in cryptography. [45:25] (English subtitles)

The goal of this video lesson is to teach students about new and exciting ways of holding an election that they may not be aware of. Students will learn three different methods of voting: plurality, instant runoff, and the Borda count. They will be led through a voting experiment in which they will see the weakness of plurality when there are three or more candidates. [29:21]

The main aim of this lesson is to show students that distances may be determined without a meter stick-a concept fundamental to such measurements in astronomy. It introduces students to the main concepts behind the first rung of what astronomers call the distance ladder. [14:57]

This Protein Purification video lesson is intended to give students some insight into the process and tools that scientists and engineers use to explore proteins. It is designed to extend the knowledge of students who are already somewhat sophisticated and who have a good understanding of basic biology. [17:13]

This lesson teaches students how to make decisions in the face of uncertainty by using decision trees. Over the course of this lesson, students will learn about the role of uncertainty in decision making, how to make and use a decision tree, how to use limiting cases to develop an intuition, and how this applies to everyday life. [19:42]

In this video lesson, the concept of momentum applied to hard-body collisions is explained using a number of simple demonstrations, all of which can be repeated in the classroom. Understanding Newton's Laws is fundamental to all of physics, and this lesson introduces the vital concepts of momentum and energy, and their conservation. [31:16]

An MIT mathematics teacher presents a module on a particular effect of frequency called the stroboscopic effect. Students will learn about low and high frequency phenomena, the stroboscope, and real-life examples of the stroboscopic. Video is accompanied by a teacher's guide, transcript, hand-out, and several related links. [19:25]