This multi-part activity introduces users to normal seasonal sea surface temperature (SST) …
This multi-part activity introduces users to normal seasonal sea surface temperature (SST) variation as well as extreme variation, as in the case of El Niño and La Niña events, in the equatorial Pacific Ocean. Via a THREDDS server, users learn how to download seasonal SST data for the years 1982 to 1998. Using a geographic information system (GIS), they visualize and analyze that data, looking for the tell-tale SST signature of El Niño and La Niña events that occurred during that time period. At the end, students analyze a season of their own choosing to determine if an El Niño or La Niña SST pattern emerged in that year's data.
This is a lab activity where students observe the relationship between pressure …
This is a lab activity where students observe the relationship between pressure and volume. They use their data to determine the formula for Boyle's Law.
In this activity, students will investigate how much chlorophyll is in olive …
In this activity, students will investigate how much chlorophyll is in olive oil using a Varnier Spectrometer. Students will measure and analyze the visible light absorbance spectra of three standard olive oils obtained from any supermarket: extra virgin, regular, and light.
Students use two different methods to determine the densities of a variety …
Students use two different methods to determine the densities of a variety of materials and objects. The first method involves direct measurement of the volumes of objects that have simple geometric shapes. The second is the water displacement method, used to determine the volumes of irregularly shaped objects. After the densities are determined, students create x-y scatter graphs of mass versus volume, which reveal that objects with densities less than water (floaters) lie above the graph's diagonal (representing the density of water), and those with densities greater than water (sinkers) lie below the diagonal.
: Students make observations and measurements of several water samples. This activity …
: Students make observations and measurements of several water samples. This activity helps students think about different ways to determine water quality.
This activity is an inquiry lab where students observe the effects of …
This activity is an inquiry lab where students observe the effects of temperature change on nitrogen dioxide gas, a common component of polluted air, to determine its color.
In this chemistry lab students are enabled to investigate  the correlation …
In this chemistry lab students are enabled to investigate  the correlation between the absorbance of light passing through a colored solution  with its concentration; this is known as Beer's Law.  While the concept is generally received by most students as being straight-forward Beer's Law labs can appear complex; this Vernier lab simplfies the process and calls for colorimeters which are relatively inexpensive and affordable.
In this field lab activity, students will determine the density, pH and …
In this field lab activity, students will determine the density, pH and water content of prairie soil, transition soil, woods soil, and riverbed soil and compare their findings.
In this activity, students collect weather data over several days or weeks, …
In this activity, students collect weather data over several days or weeks, graph temperature data, and compare the temperature data collected with long-term climate averages from where they live. Understanding the difference between weather and climate and interpreting local weather data are important first steps to understanding larger-scale global climate changes.
This activity demonstrates diffusion, osmosis, and active transport through 12 interactive models. …
This activity demonstrates diffusion, osmosis, and active transport through 12 interactive models. Start by following the path of a molecule of dye in water, create concentration gradients on either side of a cell membrane and watch the movement of substances in and out of a cell, and monitor the movement of oxygen into red blood cells with and without hemoglobin.
The "Digital Lab Techniques Manual" is a series of videos designed to …
The "Digital Lab Techniques Manual" is a series of videos designed to help you prepare for your chemistry laboratory class. Each video provides a detailed demonstration of a common laboratory technique, as well as helpful tips and information. These videos are meant to supplement, and not replace, your lab manual and assigned reading. In fact, you will most benefit from watching the videos if you have already read the appropriate background information. To be a great experimentalist, you must understand both theory and technique! If you have questions about what you see, make sure to ask your TA or your instructor. WARNING NOTICE: The experiments described in these materials are potentially hazardous and require a high level of safety training, special facilities and equipment, and supervision by appropriate individuals. You bear the sole responsibility, liability, and risk for the implementation of such safety procedures and measures. MIT shall have no responsibility, liability, or risk for the content or implementation of any of the material presented.
Students learn about the ancient carbon scyle and learn what the role …
Students learn about the ancient carbon scyle and learn what the role of dionsaurs was and then extent their knowledge to the concepts of global warming and how scientists are applying the carbon cycle to reduce harful CO2 emissions.
This activity illustrates the carbon cycle using an age-appropriate hook, and it …
This activity illustrates the carbon cycle using an age-appropriate hook, and it includes thorough discussion and hands-on experimentation. Students learn about the geological (ancient) carbon cycle; they investigate the role of dinosaurs in the carbon cycle, and the eventual storage of carbon in the form of chalk. Students discover how the carbon cycle has been occurring for millions of years and is necessary for life on Earth. Finally, they may extend their knowledge to the concept of global warming and how engineers are working to understand the carbon cycle and reduce harmful carbon dioxide emissions.
" This course introduces principles and technologies for converting heat into electricity …
" This course introduces principles and technologies for converting heat into electricity via solid-state devices. The first part of the course discusses thermoelectric energy conversion and thermoelectric materials, thermionic energy conversion, and photovoltaics. The second part of the course discusses solar thermal technologies. Various solar heat collection systems will be reviewed, followed by an introduction to the principles of solar thermophotovoltaics and solar thermoelectrics. Spectral control techniques, which are critical for solar thermal systems, will be discussed."
In this short lab, students observe the movement of an air bubble …
In this short lab, students observe the movement of an air bubble in a small level, attached to a toy truck, as it is moved from a stop, to a steady speed and back to a stop. This gives a visual to the concepts positive acceleration, zero acceleration and negative acceleration.
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