NASA
Build a Satellite
Shake, rattle, and explore space with satellites. Engineers learn how satellites work before designing, building, and testing their own models. Groups engage in quality assurance reviews with colleagues to improve their designs, and the...
Curated OER
Generic vs. Brand Name
Students compare and contrast generic and brand name products and the costs of producing each. They explore the "Bargain Basement" section of the ING website, participate in a soda taste test, and tally the results of the taste test on a...
Curated OER
How can pH be used to determine possible product tampering?
Students investigate the strength of acids and bases experimentally. They answer the question, "How can pH be used to determine possible product tampering?" by testing acids and bases with litmus paper.
NOAA
Watch the Screen!
Can a sponge cure cancer? Life science pupils visit the drugstore under the sea in the fifth lesson of six. Working groups research the topic then get hands-on experience by testing the inhibiting effects of several plant extracts on E....
American Chemical Society
Preparation and Combustion of Biodiesel
The United States is the world's largest producer of biofuel. During an in-class investigation, young scientists produce their own biodiesel. They burn a sample of it to determine the heat of combustion. Then they discuss the results...
Consortium for Ocean Science Exploration and Engagement (COSEE)
Ocean Acidification: Whats and Hows
Open this lesson by demonstrating the production of acidic carbon dioxide gas by activated yeast. Emerging ecologists then experiment with seashells to discover the effect of ocean acidification on shelled marine organisms. They measure...
Curated OER
Acids, Bases, and Indicators
Chemistry or physical science fledglings get comfortable identifying acids and bases with a variety of pH indicators. They discover that different indicator solutions have different ranges, practice testing soil acidity, and use antacids...
Intel
Prototyping
I need something to test. The three sessions in this instructional activity have individuals build and test a prototype of their design. The first two sessions are devoted to prepping for the prototype by drawing up specifications and...
Royal Society of Chemistry
Electrolysis Using a Microscale Hoffman Apparatus—Microscale Chemistry
Get big results out of a small-scale lab! Young chemists observe the electrolysis of sodium sulfate using a microscale experiment. A colorful indicator solution combined with the production of gas bubbles yields a variety of observations...
Teach Engineering
Magnetic or Not?
The class must determine the magnetic properties of different materials, including aluminum and steel by sorting through materials using a magnet. Groups make a prediction on whether a material is magnetic and then perform tests to...
College Board
2002 AP® Macroeconomics Free-Response Questions
Imagine the United States is experiencing an unusually high unemployment rate. What options does the federal government have to kick-start the economy? Learners consider the question with a structured prompt. Other questions examine...
College Board
1999 AP® Macroeconomics Free-Response Questions
Gross domestic product can be a telling indicator about the health of a country, but it has limitations. Learners examine common indicators using structured prompts and problem sets from the College Board. Other practice problems include...
College Board
2004 AP® Macroeconomics Free-Response Questions Form B
A problem set explores how an international crisis could affect the economic health of Canada using authentic materials from College Board. Other questions ask learners to create and evaluate supply and demand curves and examine factors...
College Board
2003 AP® Macroeconomics Free-Response Questions
A country experiences inflation. What options does the government have to control the problem? Using authentic materials from College Board, learners consider the problem. Additional questions explore supply and demand curves, as well as...
College Board
2007 AP® Macroeconomics Free-Response Questions
What happens when stock market prices fall and many investors sell off their holdings? Scholars explain the effects as they answer the question from the AP® exam. The resource provides other authentic College Board questions that include...
College Board
2004 AP® Microeconomics Free-Response Questions
All goods have a social cost. A set of questions considers how to best calculate the impact the production of goods has on society. Other practice problems from College Board consider supply-and-demand curves and the impact of licensing...
College Board
2005 AP® Macroeconomics Free-Response Questions Form B
Suppose a country increases its budget deficit. How would such an increase affect businesses and the exchange rate? Learners consider what happens and ponder other questions from College Board that look at employment, supply and demand,...
College Board
2013 AP® Macroeconomics Free-Response Questions
While inflation is an expected part of the economy, how does it affect other factors, such as loan and interest rates? Learners consider questions such as these in authentic College Board materials. Other practice questions include...
College Board
2003 AP® Microeconomics Free-Response Questions
A company producing smoke alarms has a monopoly. However, what factors influence its profit and production? A series of prompts from College Board asks learners to consider the impact. Other practice problems include examining what...
Teach Engineering
Design Step 5: Construct a Prototype
Enough with the talking, let's build something! In the fifth step in the engineering design process, young engineers build a prototype to test their ideas. The lesson walks them through the process of evaluating it step-by-step....
Curated OER
Toxicants and California Blackworms
Students determine the normal behavior of California blackworms. They determine how various concentrations of assigned toxicants affect the worm's behavior. Students are introduced to testing of potential toxicants, an important...
Cornell University
Investigating and Modeling Hardness
Model hardness testing with a self-designed hardness test. Young scholars rate the hardness of different types of aspirin using the Vicker's Hardness scale. They then relate hardness to the solubility of each aspirin tablet.
Teach Engineering
Build the Biggest Box
Boxing takes on a whole new meaning! The second installment of the three-part series has groups create lidless boxes from construction paper that can hold the most rice. After testing out their constructions, they build a new box....
Curated OER
Sample Midyear Examination (Chemistry and Biology)
A 12-page midterm exam sample can be given to young scientists in preparation for an exam. This particular installment is geared toward a class that delves into both ecology and chemistry concepts. There is no way to separate the 50...