To safely work with electricity, it is important to have a grasp …
To safely work with electricity, it is important to have a grasp of the basic theories. Whether we are talking about atomic structure, electrical terms, or measurement devices, understanding the theory of electricity is a key concept. This textbook, divided into three sections, provides easy-to-understand and enjoyable lessons on atomic structure, electrical units, and measurement devices for those training and working as electricians.
This activity consists of two parts in which students investigate heat transfer …
This activity consists of two parts in which students investigate heat transfer by radiation and by conduction. In the first part, students design and conduct an experiment to test the effect of color on an object's ability to radiate energy (heat). In the second part, they investigate the transfer of energy from a hotter object to a cooler one, in this case, containers of hot and cold water. In both experiments, they are required to state a hypothesis, make a list of materials and procedures needed for the experiment, collect and graph data, and state a conclusion. Each experiment is accompanied by a set of analysis and conclusion questions.
CK-12 Basic Physics - Second Edition updates CK-12 Basic Physics and is …
CK-12 Basic Physics - Second Edition updates CK-12 Basic Physics and is intended to be used as one small part of a multifaceted strategy to teach physics conceptually and mathematically.
Students hypothesize whether vinegar and ammonia-based glass cleaner are acids or bases. …
Students hypothesize whether vinegar and ammonia-based glass cleaner are acids or bases. They create designs on index cards using these substances as invisible inks. After the index cards have dried, they apply red cabbage juice as an indicator to reveal the designs.
Students learn the basics of acid/base chemistry in a fun, interactive way …
Students learn the basics of acid/base chemistry in a fun, interactive way by studying instances of acid/base chemistry found in popular films such as Harry Potter and the Prisoner of Azkaban and National Treasure. Students learn what acids, bases and indicators are and how they can be used, including invisible ink. They also learn how engineers use acids and bases every day to better our quality of life. Students' interest is piqued by the use of popular culture in the classroom.
This course covers the following questions. What are the predominant heat producing …
This course covers the following questions. What are the predominant heat producing elements of the Earth? Where and how much are they? Are they present in the core of the Earth? Detection of antineutrinos generated in the Earth provides: 1) information on the sources of the terrestrial heat, 2) direct test of the Bulk Silicate Earth (BSE) model and 3) testing of non-conventional models of Earth's core. Use of antineutrinos to probe the deep interior of our planet is becoming practical due to recent fundamental advances in the antineutrino detectors.
There are now about 170 identified impact craters on the Earth, and …
There are now about 170 identified impact craters on the Earth, and this number is growing, ever since the well known discovery of Meteor Crater in 1920s. Currently, multi-interdisciplinary research studies of impact structures are getting conducted in fields like mineralogy, petrology, environmental geology, and marine biology. The course objectives are to introduce basic principles of impact cratering, understand the application of analytical tools, and become familiar with geological, geochemical and environmental studies. This course is offered during the Independent Activities Period (IAP), which is a special 4-week term at MIT that runs from the first week of January until the end of the month.
In the master-equation formalism, a set of differential equations describe the time-evolution …
In the master-equation formalism, a set of differential equations describe the time-evolution of the probability distribution of an ensemble of systems. This can be used, for example, to describe the varied mRNA copy numbers found in individual cells in a population.
The stochastic simulation algorithm (SSA, Kinetic Monte Carlo, Gillespie algorithm) produces an …
The stochastic simulation algorithm (SSA, Kinetic Monte Carlo, Gillespie algorithm) produces an example trajectory for a particular member of a probabilistic ensemble by looping over the following steps. The current state of the system is used to determine the likelihood of each possible chemical reaction in relative comparison to the likelihoods for the other possible reactions, as well as to determine when the next reaction is expected. Pseudo-random numbers are drawn to "roll the dice" to determine exactly when the next reaction will proceed, and which kind of reaction it will happen to be.
In this project, students interpret a high-resolution image of result from an …
In this project, students interpret a high-resolution image of result from an experimental run of the Jurrasic Tank sedimentation simulator at the St. Anthony Falls Lab at the University of Minnesota. They are expected to interpret depositional environments, characterize simulated stratigraphic sections, and interpret the overall sedimentary architecture of the simulated basin. All of these observations are to put together onto a poster which is the final product of the project.
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In this video from DragonflyTV, Jai and Jonathan track, graph, and analyze …
In this video from DragonflyTV, Jai and Jonathan track, graph, and analyze the motion of basketball shots as they investigate what factors influence the accuracy of their game.
This is an Excel spreadsheet and graph that illustrates standard "batch" and …
This is an Excel spreadsheet and graph that illustrates standard "batch" and Rayleigh decarbonation models and how they can be used to detect fluid infiltration during metamorphism of carbonates. It makes a good lecture demonstration, but with a few modifications can be turned into a laboratory exercise. Key variables are "hotlinked" directly into the batch and Rayleigh models so students can adjust them to get a feel for the influence of different model parameters. The included carbon isotope data are from marbles in the Jervois region, central Australia (Cartwright et al., 1997). Oxygen isotope data are also included in the spreadsheet.
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This is one component of the Rupturing Continental Lithosphere suite of mini-lessons. …
This is one component of the Rupturing Continental Lithosphere suite of mini-lessons. Students investigate the morphology of rifted margins by creating topographic/bathymetric maps and profiles across the Red Sea and the Gulf of California (using GeoMapApp ), and describe north-to-south variations in basin morphology in the Gulf of California (including making graphs using Excel). This lab exercise will allow students to examine the roles of structural evolution, sedimentation, and physical and chemical evolution of the crust in the rifting process. This lesson can act as an introduction to more detailed examinations of the roles of sedimentation and obliquity in rifted margins.
Look inside a resistor to see how it works. Increase the battery …
Look inside a resistor to see how it works. Increase the battery voltage to make more electrons flow though the resistor. Increase the resistance to block the flow of electrons. Watch the current and resistor temperature change.
Look inside a battery to see how it works. Select the battery …
Look inside a battery to see how it works. Select the battery voltage and little stick figures move charges from one end of the battery to the other. A voltmeter tells you the resulting battery voltage.
Look inside a battery to see how it works. Select the battery …
Look inside a battery to see how it works. Select the battery voltage and little stick figures move charges from one end of the battery to the other. A voltmeter tells you the resulting battery voltage.
Using gumdrops and toothpicks, students conduct a large-group, interactive ozone depletion model. …
Using gumdrops and toothpicks, students conduct a large-group, interactive ozone depletion model. Students explore the dynamic and competing upper atmospheric roles of the protective ozone layer, the sun's UV radiation and harmful human-made CFCs (chlorofluorocarbons).
Beginning kindergarteners are introduced to science and engineering concepts through questions such …
Beginning kindergarteners are introduced to science and engineering concepts through questions such as “What is a Scientist?” and “What is an Engineer?”, and go on to compare and contrast the two. They are introduced to five steps of the engineering design process and explore these steps using the “I do, we do, you do” set of guided instruction. At the end of the project, students produce a set of purple popsicles that they design using various materials and by following a set of criteria.
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