সেরা ভিডিও
Students investigate the simulated use of solid rocket fuel by using an antacid tablet. They observe the effect that surface area and temperature has on chemical reactions. They also compare the reaction time using two different reactants: water and vinegar. Finally, students report their results in bar graph format. In the continuing hypothetical scenario of this unit, what students learn builds their background knowledge towards designing the best rocket to get their cargo into space.
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Music: Life of Riley - Kevin MacLeod
Student teams design insulated beverage bottles with the challenge to test them to determine which materials (and material thicknesses) work best at insulating hot water to keep it warm for as long as possible. Students test and compare their designs in still air and under a stream of moving air from a house fan.
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Music: Side Steppin
Students collect data and apply mathematical modeling, specifically linear approximation, to predict what will happen in a specific situation. In this activity, students collect data to determine the number of Jelly Belly jelly beans it takes to fill up the respective tube. Students plot their data, graph a linear approximation model, and write an equation representing their model. Students use their linear model to predict the number of Jelly Belly jelly beans that are in a similar cylindrical tube with a given height. Students discuss the accuracy of their results and limitations in their model and data collection process. They then apply their predictions to make suggestions to Jelly Belly for potential packaging of jelly beans based on quantity instead of net weight.
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Song: Double_Agent
by: Everet Almond
By studying how bees and flowers interact with one another, we can also understand engineering practices related to our environment! In this activity, students engineer a model of a flower to test different materials’ ability to pollinate another flower. In teams of two, students use the engineering design process to create a model of a flower out of construction paper and then test different materials by measuring and recording how much pollen is transferred. While discovering the most efficient material, students determine how the information they gain can help bees pollinate and they better understand the importance of bee conservation.
This engineering curriculum aligns to Next Generation Science Standards (NGSS).
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music: Daily Beetle
In this activity, students act as environmental engineers involved with the clean up of a toxic spill. Using bioremediation as the process, students select which bacteria they will use to eat up the pollutant spilled. Students learn how engineers use bioremediation to make organism degrade harmful chemicals. Engineers must make sure bacteria have everything they need to live and degrade contaminants for bioremediation to happen. Students learn about the needs of living things by setting up an experiment with yeast. The scientific method is reinforced as students must design the experiment themselves making sure they include a control and complete parts of a formal lab report.
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Music: Sugar - Vibe Tracks
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 permit the natural cycle of fish migration, and as they make (hypothetical) Splash Engineering presentations about their proposed fish mitigation solutions for Birdseye River's dam in Thirsty County.
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Students investigate the property dependence between liquid and solid interfaces and determine observable differences in how liquids react to different solid surfaces. They compare copper pennies and plastic "coins" as the two test surfaces. Using an eye dropper to deliver various fluids onto the surfaces, students determine the volume and mass of a liquid that can sit on the surface. They use rulers, scales, equations of volume and area, and other methods of approximation and observation, to make their own graphical interpretations of trends. They apply what they learned to design two super-surfaces (from provided surface treatment materials) that are capable of holding the most liquid by volume and by mass. Cost of materials is a parameter in their design decisions.
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https://www.teachengineering.o....rg/activities/view/w
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Music: Coupe - The Grand Affair
Students work in teams to design a tabletop supply organizer inspired by the natural home of an insect species. Their prototype stores the group’s classroom supplies (scissors, crayon boxes, pencils, and glue sticks). In addition to following measurement constraints that apply to their prototype, students must design their supply organizer with the idea that supplies must be easily retrievable and the organizer must be sturdy enough to withstand everyday classroom wear and tear. Students test their prototype in the classroom for a period of 5 days and evaluate its effectiveness.
This engineering curriculum aligns to Next Generation Science Standards (NGSS).
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TeachEngineering has over 1,500 FREE lessons and activities. Visit https://www.teachengineering.org/ for more
Music: Educated man
During this activity, students learn how oil is formed and where in the Earth we find it. Students take a core sample to look for oil in a model of the Earth. They analyze their sample and make an informed decision as to whether or not they should "drill for oil" in a specific location.
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Music: Roger That - Silent Partner
In the presence of water, citric acid and sodium bicarbonate (aka baking soda) react to form sodium citrate, water, and carbon dioxide. Students investigate this endothermic reaction. They test a stoichiometric version of the reaction followed by testing various perturbations on the stoichiometric version in which each reactant (citric acid, sodium bicarbonate and water) is strategically doubled or halved to create a matrix of the effect on the reaction. By analyzing the test matrix data, they determine the optimum quantities to use in their own production companies to minimize material cost and maximize carbon dioxide production. They use their test data to "scale-up" the system from a quart-sized ziplock bag to a reaction tank equal to the volume of their classroom. They collect data on reaction temperature and carbon dioxide production. More advanced students are challenged to theoretically predict the results using stoichiometry.
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Music: Fun - Vibe Tracks
In past times, ocean navigators tossed a piece of wood over the side of their ships and noted how long until the ship passed the wood. They used this time measurement and the length of the ship to calculate their speed and estimate how far they had traveled. In this activity, students act the part of a GPS signal traveling to the receiver to learn how travel time is converted to distance.
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Music: Cycles
Students find the volume and surface area of a rectangular cardboard box (such as a cereal box), and then figure out how to convert that box into a new, cubical box having the same volume as the original. As students construct new, cube-shaped boxes from the original box material, they discover that the cubical box has less surface area than the original, and thus, a cube is a more efficient way to package things.
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Music: Educated Man - Max McFerren
Students are given a difficult challenge that requires they integrate what they have learned so far in the unit about wait blocks, loops and switches. They incorporate these tools into their programming of the LEGO® MINDSTORMS® robots to perform different tasks depending on input from two touch sensors. This activity helps students understand how similar logic is implemented for other every day device operations via computer programs. A PowerPoint® presentation, pre/post quizzes and worksheet are provided.
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Music: Hot Mess - Audionautix
Hot Mess by Audionautix is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/)
Artist: http://audionautix.com/
Electricity allows engineers to create systems and devices to benefit all areas of society including entertainment, healthcare, transportation, space travel and more! The phenomenon of electricity inspires innovation in engineering.
This video will touch on:
What electricity is,
The two types of electricity: static and current,
And how engineers can make the world a better place using electricity!
Find lessons and activities around the phenomenon of electricity here: https://www.teachengineering.o....rg/populartopics/ele
Music: Orange Octopus
Students explore the concepts of center of mass and static equilibrium by seeing how non-symmetrical objects balance. Using a paper cut-out shape of a parrot sitting on a wire coat hanger, they learn that their parrot exists in stable equilibrium — it returns to its balancing point after being disturbed. The weight of its tail makes the parrot balance upright. Give the parrot a push, and she knocks off balance, but swings back and forth until coming to rest in balance again.
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Music: Daily Beetle - Kevin MacLeod
Students collect, categorize, weigh, and analyze classroom solid waste. The class collects waste for a week and then student groups spend a day sorting and analyzing the garbage with respect to recyclable and non-recyclable items. They discuss ways that engineers have helped to reduce the accumulation of solid waste.
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Music: Feel_Good_Rock by Audionautix
Students learn about stress and strain by designing and building beams using polymer clay. They compete to find the best beam strength to beam weight ratio, and learn about the trade-offs engineers make when designing a structure.
View the full activity on TeachEngineering: https://www.teachengineering.o....rg/activities/view/c
TeachEngineering has over 1,500 FREE lessons and activities. Visit http://www.TeachEngineering.org for more!
Music: Brazil Samba - Bensound.com
Students are introduced to the structure, function and purpose of locks and dams, which involves an introduction to Pascal's law, water pressure and gravity.
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Students design systems that use microbes to break down a water pollutant (in this case, sugar). They explore how temperature affects the rate of pollutant decomposition.
View the full activity at TeachEngineering:
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TeachEngineering has over 1,500 FREE lessons and activities. Visit http://www.TeachEngineering.org for more!
Music: Why Did You Do It - Everet Almond
Students learn about viscoelastic material behavior, such as strain rate dependence and creep, by using silly putty, an easy-to-make polymer material. They learn how to make silly putty, observe its behavior with different strain rates, and then measure the creep time of different formulations of silly putty. By seeing the viscoelastic behavior of silly putty, students start to gain an understanding of how biological materials function. Students gain experience in data collection, graph interpretation, and comparison of material properties to elucidate material behavior. It is recommended that students perform Part 1 of the activity first (making and playing with silly putty), then receive the content and concept information in the associated lesson, and then complete Part 2 of the activity (experimenting and making measurements with silly putty).
View the full activity on TeachEngineering:
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Music: Hyperfun - Kevin MacLeod
Hyperfun by Kevin MacLeod is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/...)
Source: http://incompetech.com/music/royalty-...
Artist: http://incompetech.com/
