Heat It Up!
Through a teacher demonstration using water, heat and food coloring, students see how convection moves the energy of the Sun from its core outwards. Students learn about the three different modes of heat transfer (convection, conduction, radiation) and how they are related to the Sun and life on our planet.
The Visual Spectrum
In this activity, students make simple spectroscopes (prisms) to look at different light sources. The spectroscopes allow students to see differing spectral distributions of different light sources.
DNA: The Human Body Recipe
As a class, students work through an example showing how DNA provides the “recipe” for making our body proteins. They see how the pattern of nucleotide bases (adenine, thymine, guanine, cytosine) forms the double helix ladder shape of DNA, and serves as the code for the steps required to make genes. They also learn some ways that engineers and scientists are applying their understanding of DNA in our world.
Students extend their knowledge of the skeletal system to biomedical engineering design, specifically the concept of artificial limbs. Students relate the skeleton as a structural system, focusing on the leg as structural necessity. They learn about the design considerations involved in the creation of artificial limbs, including materials and sensors.
Students culture cells in order to find out which type of surfactant (in this case, soap) is best at removing bacteria. Groups culture cells from unwashed hands and add regular bar soap, regular liquid soap, anti-bacterial soap, dishwasher soap, and hand sanitizer to the cultures. The cultures are allowed to grow for two days and then the students assess which type of soap did the best job of removing bacteria cells from unwashed hands. Students extend their knowledge of engineering and surfacta
Students continue to explore the story of building a pyramid, learning about the simple machine called a pulley. They learn how a pulley can be used to change the direction of applied forces and move/lift extremely heavy objects, and the powerful mechanical advantages of using a multiple-pulley system. Students perform a simple demonstration to see the mechanical advantage of using a pulley, and they identify modern day engineering applications of pulleys. In a hands-on activity, they see how a
Light and Lenses: Images and Concave Lenses
This is the 4th lesson in the series, "Light and Lenses." It describes the nature, size and position of an image formed by a concave lens. The lesson also describes how lenses are used to help people with different eye conditions. (13:34)
Discovering Properties of Matter
What is matter? How do we define it? What are some of its properties that we can measure? Come learn all about this fundamental piece of science in this Wowie clip from the Children's Museum of Houston. Cynthia briefly discusses the following properties of matter: shape, texture, magnetism, fluorescence, and mass. (0:59)
4.6 Plants as medicines
To be able to understand the importance of the environment for our health, we need to know a little about the interdependence between environment and humankind. This unit will look at interactions between plants, animals and the physical and chemical environment, as well as considering ways in which humans have altered, and are altering this environment. These changes have health implications that are not always immediately obvious. Frequently, we initiate changes that are going to have their ef
Pathway to Space
High school science just got a whole lot more interesting. Students from around Australia can now embark on a mission to Mars and learn what it's like to follow science and engineering careers. Pathways to Space, a federally funded project led by the University of New South Wales, will see students working with scientists in a Mars Yard at Sydney's Powerhouse Museum and linking up via video with researchers at UNSW and The University of Sydney. The simulated mission exhibit, a recipient of alm
This video shows step by step how to assembly the percussion kit and how to hold the mallets/sticks and play some first sounds. (07:30)
Protests erupt across Syria
Protesters took to the streets in several Syrian cities on Friday - in a direct challenge to the rule of President Bashar al-Assad. Jon Decker reports.
HEAD Academy PBL Case Studies
This is site links to a part of the HEAD academy website that contains case studies relevant to chemistry and related scientific areas. Several of these sites are linked directly from ASDL (notably the Drip in the Dibble and Tales of a Riverbank). These case studies are in the form of downloadable zipped files containing pdfs that include materials to give to students as well as instructor guides. This makes them easy to implement on a local basis
GAMBIT Research Video Podcast Episode 14, Part 2 "First Person Victim: Using Interactive Drama and
Episode 14, Part 2 "First Person Victim: Using Interactive Drama and Tragedy to Create Awareness about The Consequences of War". This video of our March 31st, 20101 research meeting will feature our friend Henrik Schønau Fog, PhD Fellow in Mediology who will present his game First Person Victim, a project that he developed with a team of other researchers from Aalborg University, which situates the player in the middle of a war scenario as a civilian. It's a fascinating project, so don't mis
3.2 By medium We can divide texts up by the medium in which they appear. This is a broad division that is technologically based. It may seem excessively obvious, but it can be quite revealing. For example, different media have different periodicities (frequency of appearances) – most magazines appear weekly or monthly, while newspapers are weekly or daily. Episodes of television programmes are most commonly also weekly or daily, but films appear on a different basis altogether, since, like books or CDs t
We can divide texts up by the medium in which they appear. This is a broad division that is technologically based. It may seem excessively obvious, but it can be quite revealing. For example, different media have different periodicities (frequency of appearances) – most magazines appear weekly or monthly, while newspapers are weekly or daily. Episodes of television programmes are most commonly also weekly or daily, but films appear on a different basis altogether, since, like books or CDs t
A five minute video with good illustrations and maps that helps show Europe and what makes it up. The video explains why so many people in Europe and offers other insights that many resources don't provide. The main rives and other features are also shown.
"The Gods of the Copybook Headings" by Rudyard Kipling (poetry reading)
Copybooks were used for teaching. They contained incontrovertible truths, often from the Bible, that pupils copied out in their own handwriting. Their purpose was to instill wisdom and improve penmanship. The sort of old-fashioned trite cliches quoted in the poem are copybook headings e.g. "Stick to the devil you know" and "All is not gold that glitters". I wonder if Aldous Huxley's inspiration for the title "Brave New World" came indirectly from this poem and not directly from The Tempest.
Analyses of the Terminal Direct Repeats (DRs) of Human Herpesvirus 6A DNA
Analyses of the Terminal Direct Repeats (DRs) of Human Herpesvirus 6A DNA