Students explore whether rooftop gardens are a viable option for combating the …
Students explore whether rooftop gardens are a viable option for combating the urban heat island effect. Can rooftop gardens reduce the temperature inside and outside houses? Teams each design and construct two model buildings using foam core board, one with a "green roof" and the other with a black tar paper roof. They measure and graph the ambient and inside building temperatures while under heat lamps and fans. Then students analyze the data and determine whether the rooftop gardens are beneficial to the inhabitants.
Students are introduced to several types of common medical sensor devices, such …
Students are introduced to several types of common medical sensor devices, such as ear and forehead thermometers, glucometers and wrist blood pressure monitors; they use the latter to measure their blood pressure and pulse rates. Students also measure their heights and weights in order to calculate their BMIs (body mass index). Then they use the collected data to create and analyze scatterplots of the different variables to determine if any relationships exist between the measured variables. Discussions about the trends observed and possible health concerns conclude the activity.
It is possible to say a lot about the solution to an …
It is possible to say a lot about the solution to an equation without actually solving it, just by looking at the structure and operations that make up the equation. This exercise turns the focus away from the familiar Ňfinding the solutionÓ problem to thinking about what it really means for a number to be a solution of an equation.
Students learn about two types of friction static and kinetic and the …
Students learn about two types of friction static and kinetic and the equation that governs them. They also measure the coefficient of static friction experimentally.
Students use a spring scale to drag an object such as a …
Students use a spring scale to drag an object such as a ceramic coffee cup along a table top or the floor. The spring scale allows them to measure the frictional force that exists between the moving cup and the surface it slides on. By modifying the bottom surface of the cup, students find out what kinds of surfaces generate more or less friction.
Students learn about the strength of bones and methods of helping to …
Students learn about the strength of bones and methods of helping to mend fractured bones. During a class demonstration, a chicken bone is broken by applying a load until it reaches a point of failure (fracture). Then, working as biomedical engineers, students teams design their own splint or cast to help repair a fractured bone, learning about the strength of materials used.
Music and sound are two different concepts that share much in common. …
Music and sound are two different concepts that share much in common. Determining the difference between the two can sometimes be difficult due to the subjective nature of deciding what is or is not music. The goal of this activity is to take something constructed by students, that would be normally classified as just sound and have the class work together to make what can be perceived to be music. Students construct basic stringed instruments made of shoeboxes and rubber bands. This activity aims to increase student understanding of what distinguishes music from sound.
In this design challenge, students learn about the Vikings from an engineering …
In this design challenge, students learn about the Vikings from an engineering point-of-view. While investigating the history and anatomy of Viking ships, they learn how engineering solutions are shaped by the surrounding environment and availability of resources. Students apply this knowledge to design, build and test their own model Viking ships.
Students measure the effectiveness of water filters in purifying contaminated water. They …
Students measure the effectiveness of water filters in purifying contaminated water. They prepare test water by creating different concentrations of bleach (chlorine-contaminated) water. After passing the contaminated water through commercially available Brita® water filters designed to purify drinking water, students determine the chlorine concentration of the purified water using chlorine test strips and measure the adsorption of chlorine onto activated carbon over time. They graph and analyze their results to determine the effectiveness of the filters. The household active carbon filters used are one example of engineer-designed water purification systems.
This problem-based learning module is students will be collecting their personal health …
This problem-based learning module is students will be collecting their personal health numbers in a station rotation format. After choosing their health numbers to compare, the students will create a scatter plot and line of best fit using class data. Students will do a gallery walk to compare their health numbers with their peers. The students will then create a presentation for a health fair to bring awareness to health numbers based on their personal findings and facts.
Geospatial data analysis is a growing field in science with practical applications …
Geospatial data analysis is a growing field in science with practical applications in government and industry. This problem-based learning module guides learners through exploring the relationship between the amount of trash found relative to the location of waste receptacles in their community. Recording the location of identified items of trash/recyclables and placing them on a map allows students to identify if there is a correlation between the amount of trash and the distance away from waste receptacles. While this module uses trash, almost any item can be tracked and plotted for analysis. Some other ideas were: locations of Pokemon in Pokemon Go, animal migration, safety devices, various plant species, texting and driving are just a few examples.
Students reinforce an antenna tower made from foam insulation so that it …
Students reinforce an antenna tower made from foam insulation so that it can withstand a 480 N-cm bending moment (torque) and a 280 N-cm twisting moment (torque) with minimal deflection. During one class period, students discuss the problem, run the initial bending and torsion tests and graph the results. During the following class periods, students design, construct and test sturdier towers, and graph the results.
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