National Renewable Energy Laboratory
Biomass: Biogas Generator
It's a gas. Middle schoolers build a biogas generator following the directions in this resource. After a few days of observation, they demonstrate that the gas given off by the decomposing manure is flammable. The activity concludes as...
Nuffield Foundation
Dissecting Lungs
Here is a lab activity where teens experience the respiratory system first-hand as they dissect lungs and identify key structures within the system. Although the website is written in British English with some slightly different verbiage...
Teach Engineering
Earthquakes Living Lab: Finding Epicenters and Measuring Magnitudes
Pairs use an online simulation to determine the epicenter and magnitude of an earthquake. Using real data about the earthquake's maximum S wave amplitudes, they then determine the magnitude. The resource provides a great career...
Curated OER
Fuel Cell Experimentation
With rising oil prices and increasing concerns over global warming, the pressure is on for engineers to develop alternative sources of energy. Among the new technologies being developed are hydrogen fuel cells, which young scientists...
Chymist
The Extraction and Identification of Artificial Food Colors
Did you know some food dyes are considered safe while others are considered carcinogenic? During the experiment, young chemists extract artificial food colors from prepared foods. Then, they use chromatography paper to identify which...
National Nanotechnology Infrastructure Network
Lines on Paper - Laser Box
See what you cannot see by getting a little creative. An intriguing lesson has learners use lasers to explore X-ray diffraction. Given a box with unknown structures, they shine a laser through the box and interpret the results....
Texas State Energy Conservation Office
Investigation: Insulation
Youngsters compare the heat-holding abilities of three different cans by insulating two with different materials and measuring the temperature change of hot water over a 20-minute period.
Pingry School
The Alchemist's Dream – Copper into "Gold"
Many scientists attempted alchemy for hundreds of years before a full understanding of metals became clear. Scholars take a penny and, through two different chemical reactions, make it appear to turn into silver and later gold. They...
Chymist
Tritration: Standardization of a Base and Analysis of Stomach Antacid Tablets
Do antacid tablets really do what they claim? An experimental lesson attempts to answer this question. Individuals practice the process of titration during the first part of the experiment. They then use those skills to neutralize an...
Royal Society of Chemistry
A Cartesian Diver—Classic Chemistry Experiments
Sometimes the simplest experiments leave the biggest impression! Introduce young chemists to the Cartesian Diver by having them make one of their own. Use the Diver to further their study of liquids and gases, as well as compression.
Periodic Videos
Beryllium
In some countries, beryllium goes by the name glucinium. The fourth video in a series about chemical elements explains the unique properties of beryllium as well as its uses. It also highlights the dangers of working with beryllium in...
Be Smart
Does Someone Else Have Your Face?
Our brains may misrepresent features that make some faces look more alike than they actually are. Learners watch a video lesson that breaks down how the brain reads facial features and how those features themselves are not as important...
Be Smart
Do Fish Pee?
Freshwater fish pee almost constantly, while saltwater fish pee very little. Scholars investigate the concept of homeostasis with a video lesson comparing fresh and saltwater fish. An episode describes how some fish absorb water, while...
Chymist
Alum from Waste Aluminum Cans
Turn aluminum cans into pickles! An engaging experiment has learners chemically change aluminum into a substance with many purposes including the manufacture of pickles. After performing the chemical conversion, the experimenters verify...
Curated OER
Comparing Ovaries And Testes
In this reproductive system worksheet, students compare specimens of rat ovaries and testes. They complete 5 short answer pre-lab questions, follow an 11 step procedure and answer 5 analysis questions.
Curated OER
Observing Decomposition
In this science worksheet, students focus upon the concept of decomposition and collect data in order to make interpretations or observations.
Curated OER
Making Karyotypes
In this karyotype worksheet, students answer 5 pre-lab questions before cutting out numbered chromosomes and matching them to unnumbered chromosomes to create a karyotype.
Curated OER
Identifying Organic Compounds
In this organic compound lab learning exercise, learners complete 5 pre-lab questions before testing a variety of common foods to determine which organic compound is present. Once data collection is complete and recoded, they answer 9...
Curated OER
Photosynthesis
In this photosynthesis worksheet, students follow the steps to complete a science investigation and then respond to 8 short answer questions regarding the photosynthesis investigation.
Curated OER
Plant Reproduction
In this plant reproduction worksheet, students follow the steps to complete a science investigation and then respond to 2 short answer questions and complete a data table regarding the investigation.
Curated OER
2001 U.S. National Chemistry Olympiad Part III
Here is a comprehensive method for assessing chemistry learners' knowledge; have them approach two laboratory problems, plan their methods of solving each, and then actually carry out the experiments to find the answers. Both the...
Beyond Benign
Product Test
It's the moment of truth. Previous lessons in the 24-part series had scholars design and develop shampoo formulas using chemical concepts. The 18th instructional activity asks them to test the function of their shampoos. To do this, they...
Beyond Benign
Catalysts and Oxygen
Here is an engaging and hands-on lesson plan that allows high school chemists to demonstrate the effects of a catalyst on various chemicals. They garner knowledge of how reactants and products differ from one another, while analyzing the...
It's About Time
Solutions, Suspensions, and Colloids
Chemists are frequently in suspension, but not because they misbehave! Scholars mix various items with water to create solutions, suspensions, and colloids. They test each one to determine their differences and properties. The resource...
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