Beyond Benign
Is It Easy Being Green Game Show
Is it possible to create an environmentally friendly shampoo? Learners accept this challenge in the fifth lesson in a green chemistry series of 24. The analysis of their shampoo ingredients must address pH, exothermic reactions, and...
Beyond Benign
12 Principle Match Up
Can you find a match? Scholars review the 12 principles of green chemistry by playing a matching game. The second lesson of the series reinforces the principles from the first lesson. Individuals play the matching game and also complete...
Career Cornerstone Center
Sloan Career Cornerstone Center: Chemical Engineering
A career in Chemical Engineering is profiled.Included: Chemical Engineering overview, Preparation, Day In The Life, Earnings, Employment, Career Path Forecast, Professional Organizations.
TeachEngineering
Teach Engineering: Hot Potato, Cool Foil
Students explore material properties by applying some basic principles of heat transfer. They use calorimeters to determine the specific heat of three substances: aluminum, copper and another of their choice. Each substance is cooled in...
TeachEngineering
Teach Engineering: In and Out Reactor
Students learn about material balances, a fundamental concept of chemical engineering. They use stoichiometry to predict the mass of carbon dioxide that escapes after reacting measured quantities of sodium bicarbonate with dilute acetic...
TeachEngineering
Teach Engineering: It Burns!
In this activity, students learn how to prevent exposure to the Sun's harmful ultraviolet rays. Students will systematically test various sunscreens to determine the relationship between spf (sun protection factor) value and sun...
TeachEngineering
Teach Engineering: Does Your Chewing Gum Lose Its Flavor?
In the first part of the activity, each student chews a piece of gum until it loses its flavor, and then leaves the gum to dry for several days before weighing it to determine the amount of mass lost. This mass corresponds to the amount...
TeachEngineering
Teach Engineering: Cereal Magnets
In this activity, students will design a process that removes the most iron from the cereal. This activity is meant for the students to experiment with different materials using what they know about iron, magnets, and forces to design...
TeachEngineering
Teach Engineering: Surface Tension Lab
Students extend their understanding of surface tension by exploring the real-world engineering problem of deciding what makes a "good" soap bubble. Student teams first measure this property, and then use this measurement to determine the...
TeachEngineering
Teach Engineering: A Tasty Experiment
Students conduct an experiment to determine whether or not the sense of smell is important to being able to recognize foods by taste. They do this by attempting to identify several different foods that have similar textures. For some of...
TeachEngineering
Teach Engineering: Viscosity: The Flow of Milk
Students study the physical properties of different fluids and investigate the relationship between the viscosities of liquid and how fast they flow through a confined area. Student groups conduct a brief experiment in which they...
TeachEngineering
Teach Engineering: Molecules: The Movement of Atoms
Students work as engineers to learn about the properties of molecules and how they move in 3D space through the use of LEGO MINDSTORMS NXT robotics. They design and build molecular models and use different robotic sensors to control the...
TeachEngineering
Teach Engineering: Make That Invisible! Refractive Index Matching
Students determine the refractive index of a liquid with a simple technique using a semi-circular hollow block. Then they predict the refractive index of a material (a Pyrex glass tube) by matching it with the known refractive index of a...
TeachEngineering
Teach Engineering: What Works Best in a Radiator?
Students learn the importance of heat transfer and heat conductance. Using hot plates, student groups measure the temperature change of a liquid over a set time period and use the gathered data to calculate the heat transfer that occurs....
TeachEngineering
Teach Engineering: Eat Iron?!!
To gain an understanding of mixtures and the concept of separation of mixtures, students use strong magnets to find the element of iron in iron-fortified breakfast cereal flakes. Through this activity, they see how the iron component of...
TeachEngineering
Teach Engineering: Grow Your Own Algae!
Students discover how tiny microscopic plants can remove nutrients from polluted water. They also learn how to engineer a system to remove pollutants faster and faster by changing the environment for the algae.
TeachEngineering
Teach Engineering: Tension Racers!
Students see how different levels of surface tension affect water's ability to move. Teams "race" water droplets down tracks made of different materials, making measurements, collecting data, making calculations, graphing results and...
TeachEngineering
Teach Engineering: Red Cabbage Chemistry
Students take advantage of the natural ability of red cabbage juice to perform as a pH indicator to test the pH of seven common household liquids. Then they evaluate the accuracy of the red cabbage indicator, by testing the pH of the...
TeachEngineering
Teach Engineering: Hydrogen Oxygen Reaction Lab
This lab exercise exposes students to a potentially new alternative energy source-hydrogen gas. Student teams are given a hydrogen generator and an oxygen generator. They balance the chemical equation for the combustion of hydrogen gas...
TeachEngineering
Teach Engineering: Air Pollution
Students are introduced to the concept of air quality by investigating the composition, properties, atmospheric layers and everyday importance of air. They explore the sources and effects of visible and invisible air pollution. By...
TeachEngineering
Teach Engineering: Surface Tension
Surface tension accounts for many of the interesting properties we associate with water. By learning about surface tension and adhesive forces, students learn why liquid jets of water break into droplets rather than staying in a...
TeachEngineering
Teach Engineering: Environmental Engineering and Water Chemistry
Students are introduced to the fundamentals of environmental engineering as well as the global air, land and water quality concerns facing today's environmental engineers. After a lesson and activity to introduce environmental...
TeachEngineering
Teach Engineering: Extinction Prevention via Engineering
Species extinction is happening at an alarming rate according to scientists. In this lesson, students are asked to consider why extinction is a problem that we should concern us. They are taught that destruction of habitat is the main...
TeachEngineering
Teach Engineering: Superhydrophobicity: The Lotus Effect
Students are introduced to superhydrophobic surfaces and the "lotus effect." Water spilled on a superhydrophobic surface does not wet the surface, but simply rolls off. Additionally, as water moves across the superhydrophobic surface, it...