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Bacteria Are Everywhere!
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Educational Use
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Students are introduced to the concept of engineering biological organisms and studying their growth to be able to identify periods of fast and slow growth. They learn that bacteria are found everywhere, including on the surfaces of our hands. Student groups study three different conditions under which bacteria are found and compare the growth of the individual bacteria from each source. In addition to monitoring the quantity of bacteria from differ conditions, they record the growth of bacteria over time, which is an excellent tool to study binary fission and the reproduction of unicellular organisms.

Subject:
Biology
Chemistry
Science
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Janet Yowell
Jasmin Hume
Date Added:
09/18/2014
The Balancing Act
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Educational Use
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Students visualize and interact with concepts already learned, specifically algebraic equations and solving for unknown variables. They construct a balancing seesaw system (LEGO® Balance Scale) made from LEGO MINDSTORMS® parts and digital components to mimic a balancing scale. They are given example algebraic equation problems to analyze, configure onto the balance scale, and evaluate by manipulating LEGO pieces and gram masses that represent terms of an equation such as unknown variables, coefficients and integers. Digital light sensors, built into the LEGO Balance Scale, detect any balance or imbalances displayed on the balancing scale. The LEGO Balance Scale interactively issues a digital indication of balance or imbalance within the system. If unbalanced, students continue using the LEGO Balance Scale until they are confident in their understanding of solving algebraic equations. The goal is for students to become confident in solving algebraic equations by fundamentally understanding the basics of algebra and real-world algebraic applications.

Subject:
Chemistry
Science
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Gisselle Cunningham
Jared Soto
Linderick Outerbridge
Russell Holstein
Timothy Li
Date Added:
09/18/2014
Balancing Chemical Equations
Unrestricted Use
CC BY
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How do you know if a chemical equation is balanced? What can you change to balance an equation? Play a game to test your ideas!

Subject:
Chemistry
Science
Material Type:
Simulation
Provider:
University of Colorado Boulder
Provider Set:
PhET Interactive Simulations
Author:
Chris Malley
Emily Moore
Kathy Perkins
Kelly Lancaster
Patricia Loeblein
Robert Parson
Date Added:
08/15/2011
Basically Acidic Ink
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Educational Use
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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.

Subject:
Chemistry
Science
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Christine Hawthorne
Corey Burton
Nicole Stewart
Rachel Howser
Date Added:
09/18/2014
Basically Acids
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Educational Use
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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.

Subject:
Chemistry
Science
Material Type:
Lesson
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Christine Hawthorne
Rachel Howser
Date Added:
09/18/2014
Basic stochastic simulation: Master equation
Conditional Remix & Share Permitted
CC BY-SA
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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.

Subject:
Chemistry
Math
Physics
Science
Material Type:
Lesson
Provider:
Look At Physics
Provider Set:
A Mathematical Way to Think About Biology
Author:
David Liao
Date Added:
10/08/2012
Basic stochastic simulation: Stochastic simulation algorithm
Conditional Remix & Share Permitted
CC BY-SA
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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.

Subject:
Chemistry
Math
Physics
Science
Material Type:
Lesson
Provider:
Look At Physics
Provider Set:
A Mathematical Way to Think About Biology
Author:
David Liao
Date Added:
10/08/2012
Beer's Law Lab
Unrestricted Use
CC BY
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The PhET project at the University of Colorado creates "fun, interactive, research-based simulations of physical phenomena." This particular one deals with Beer's Law. "The thicker the glass, the darker the brew, the less the light that passes through." Make colorful concentrated and dilute solutions and explore how much light they absorb and transmit using a virtual spectrophotometer! The simulation is also paired with a teachers' guide and related resources from PhET. The simulation is also available in multiple languages.

Subject:
Chemistry
Science
Material Type:
Simulation
Provider:
University of Colorado Boulder
Provider Set:
PhET Interactive Simulations
Author:
Chris Malley
Emily B. Moore
Julia Chamberlain
Kathy Perkins
Kelly Lancaster
Date Added:
05/14/2012
Body Full of Crystals
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Educational Use
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Students learn about various crystals, such as kidney stones, within the human body. They also learn about how crystals grow and ways to inhibit their growth. They also learn how researchers such as chemical engineers design drugs with the intent to inhibit crystal growth for medical treatment purposes and the factors they face when attempting to implement their designs. A day before presenting this lesson to students, conduct the associated activity, Rock Candy Your Body.

Subject:
Chemistry
Science
Material Type:
Lesson
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Andrea Lee
Megan Ketchum
Date Added:
10/14/2015
Braingenie
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Subject:
Biology
Chemistry
Math
Physics
Science
Material Type:
Activity/Lab
Date Added:
04/12/2019
Breathing Cells
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Educational Use
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Students use a simple pH indicator to measure how much CO2 is produced during respiration, at rest and after exercising. They begin by comparing some common household solutions in order to determine the color change of the indicator. They review the concepts of pH and respiration and extend their knowledge to measuring the effectiveness of bioremediation in the environment.

Subject:
Chemistry
Science
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Janet Yowell
Kaelin Cawley
Malinda Schaefer Zarske
Date Added:
10/14/2015
Bridging to Polymers: Thermoset Lab
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Educational Use
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Students act as engineers to learn about the strengths of various epoxy-amine mixtures and observe the unique characteristics of different mixtures of epoxies and hardeners. Student groups make and optimize thermosets by combining two chemicals in exacting ratios to fabricate the strongest and/or most flexible thermoset possible.

Subject:
Chemistry
Science
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Brian Rohde
Don McGowan
Date Added:
09/18/2014
Build and Test a Conductivity Probe with Arduino
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Educational Use
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Student groups construct simple conductivity probes and then integrate them into two different circuits to test the probe behavior in solutions of varying conductivity (salt water, sugar water, distilled water, tap water). The activity culminates with student-designed experiments that utilize the constructed probes. The focus is to introduce students to the fabrication of the probe and expose them to two different ways to integrate the probe to obtain qualitative and quantitative measurements, while considering the application and utility of a conductivity probe within an engineering context. A provided handout guides teams through the process: background reading and questions; probe fabrication including soldering; probe testing and data gathering (including circuit creation on breadboard); probe connection to Arduino (including circuit creation and code entry) and a second round of testing and data gathering; design and conduct their own lab experiments that use the probes; online electrolyte/nonelectrolyte reading, short video, comprehension check and analysis questions.

Subject:
Chemistry
Physical Science
Science
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Iulian Irimina
Phillip Cook
Date Added:
05/07/2018
The Building Blocks of Matter
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Educational Use
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Students learn about atoms and their structure (protons, electrons, neutrons) — the building blocks of matter. They see how scientific discoveries about atoms and molecules influence new technologies developed by engineers.

Subject:
Chemistry
Physical Science
Science
Material Type:
Lesson
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Brian Kay
Daria Kotys-Schwartz
Janet Yowell
Malinda Schaefer Zarske
Date Added:
05/07/2018
Building a Fancy Spectrograph
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This is an lesson about spectrographs. Learners will build and decorate their own spectrographs using simple materials and holographic diffraction gratings. After building the spectrographs, they observe the spectra of different light sources. Requires advance preparation to spray-paint the inside of the containers black the day before construction. The activity is part of Project Spectra, a science and engineering program for middle-high school students, focusing on how light is used to explore the Solar System.

Subject:
Chemistry
Physics
Science
Material Type:
Activity/Lab
Lesson
Provider:
NASA
Provider Set:
NASA Wavelength
Date Added:
10/05/2018
CK12-Foundation - Great for Math & Science
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CK-12 Foundation gives access to high quality educational materials for K-12 students all over the world.
They have high-quality, standards-aligned, open content in the STEM subjects.

This is an OUTSTANDING resource. Be sure to check out the Math & Science FlexLets

Students - select "switch to student version" from the top menu.

Subject:
Biology
Calculus
Chemistry
Earth Science
Economics
Environmental Science
Foundations
Health & Fitness
Health Science
Math
Photography
Physical Education
Physical Science
Practical & Applied Arts
Pre-Calculus
Science
Social Studies
Workplace and Apprenticeship
Material Type:
Activity/Lab
Author:
ck12.org
Date Added:
02/13/2024
The Car with a Lot of Potential
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Educational Use
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Working in teams of three, students perform quantitative observational experiments on the motion of LEGO MINDSTORMS(TM) NXT robotic vehicles powered by the stored potential energy of rubber bands. They experiment with different vehicle modifications (such as wheel type, payload, rubber band type and lubrication) and monitor the effects on vehicle performance. The main point of the activity, however, is for students to understand that through the manipulation of mechanics, a rubber band can be used in a rather non-traditional configuration to power a vehicle. In addition, this activity reinforces the idea that elastic energy can be stored as potential energy.

Subject:
Chemistry
Science
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Author:
Brian Kay
Daria Kotys-Schwartz
Janet Yowell
Malinda Schaefer Zarske
Date Added:
09/18/2014
Chem 30 Trading Cards
Unrestricted Use
CC BY
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Students were required to research various scientists who played an important role in the development of the atomic theory. Using their findings, students were to create a trading card and share their card with their classmates in a jigsaw activity.

Subject:
Chemistry
Science
Material Type:
Activity/Lab
Date Added:
09/01/2018