Kekule's Dream and Bunsen's Burner
Connecting science to students? lives has always been a major goal of teachers. Most introductory chemistry or physical science textbooks contain small paragraphs and sidebars about notable scientists or historical events, but these short snippets of information often do not seem relevant to students' lives. A free, online resource?Using the History of Science in the Chemistry Classroom?helps teachers incorporate the history of science in chemistry and physical science classrooms.
Energy on a Roller Coaster
This activity utilizes hands on learning with the conservation of energy and the interaction of friction. Students will use a roller coaster track and collect position data. The students will then calculate velocity, and energy data. After the lab, students will relate the conversion of potential and kinetic energy to the conversion of energy used in a hybrid car.
Swim to and from the Sea!
Students are introduced to the basic biology behind Pacific salmon migration and the many engineered Columbia River dam structures that aid in their passage through the river’s hydroelectric dams. Students apply what they learn about the salmon life cycle as they think of devices and modifications that might be implemented at dams to aid in the natural cycle of fish migration, and as they make (hypothetical) Splash Engineering presentations about their proposed fish mitigation solutions for Bi
Sea to Sky
In this lesson, students learn about major landforms (e.g., mountains, rivers, plains, valleys, canyons and plateaus) and how they occur on the Earth’s surface. They learn about the civil and geotechnical engineering applications of geology and landforms, including the design of transportation systems, mining, mapping and measuring natural hazards.
Get Your Motor Running
Students investigate motors and electromagnets as they construct their own simple electric motors using batteries, magnets, paper clips and wire.
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
Virtual Maths - 3D shapes, diagram, area, volume
Diagram of 3D shapes with formula for calculating area (and volume)
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