Cornell University
Bacteria Take Over and Down
Bacteria outnumber all other forms of life on Earth. Scholars observe the growth of bacteria in petri dishes to understand their role in maintaining good health. Then, they observe the growth of bacteria after they introduce...
Virginia Department of Education
Equilibrium and Le Chatelier’s Principle
The best part of learning about equilibrium is that nothing changes. Young chemists observe four demonstrations during this lesson: equilibrium in a saturated solution, equilibrium with an acid-base indicator, equilibrium with cobalt...
Serendip
How Do Biological Organisms Use Energy?
When an organism eats, how does food become energy? Young biologists follow glucose through the process of cellular respiration to the creation of ADP using a discussion-based activity. The resource also highlights conservation of mass...
LABScI
Freezing Point Depression: Why Don’t Oceans Freeze?
Can you go ice fishing in the ocean? Learners examine the freezing point of different saltwater solutions. Each solution has a different concentration of salt. By comparing the freezing points graphically, they make conclusions...
Curated OER
Lead and Mercury Ion Catalase Inhibition
Students participate in a laboratory investigation in which they observe the effect of temperature and pH on enzyme activity. Students also examine exposure to heavy metal ions and the effect that may have on enzyme activity.
Curated OER
Addition Polymerization: Preparation of Polystyrene Using Two Types of Initiators
Advanced chemistry classes compare the polymerization of styrene using two different initators: benzoyl peroxide and aluminum chloride. Once they synthesize polystyrene, they compare the two producet for melting point and density. There...
Curated OER
The Nobel Prize in Chemistry 2003 - Information for the Public
An information-packed eight-page article detailing the history of understanding active transport across cell membranes makes up the bulk of this handout. Two pages of reading comprehension and critical-thinking questions follow. The...
Curated OER
Density
Learners predict when an object will float or sink based on comparison of density of the object to the density of the substance in which it is placed. The access a website and sketch the object in the first column of their table and then...
Science Geek
Nuclear Chemistry
Which bichemicals wash up on shore? Nucleotides! Presentation covers alpha, beta, and gamma radiation. Includes a comparison of fission versus fusion. Presentation is the second in a five-part series.
University of California
Hot! Hot! Hot!
Calories are not tiny creatures that sew your clothes tighter every night, but what are they? A science lesson, presented at multiple levels, has learners experiment with heat, heat transfer, and graph the function over time....
Science Geek
Atomic Structure
The International Union of Pure and Applied Chemistry (IUPAC) was formed in 1919 and was crucial for allowing scientists to discuss findings during the Cold War. A presentation offers an introduction to atomic structure including the...
National Institute of Open Schooling
Mole Concept
Learners explore atomic measurement in the first activity in a series of 36. Through readings, activities, and questions, classes review standard SI units, learn about Avogadro's constant, and use it to help them calculate moles. They...
Cornell University
Discovering Enzymes
Explore the function of enzymes through a series of lab investigations. Learners use household enzymes such as hydrogen peroxide to model the role of enzymes. The enzymes break down proteins with and without a catalyst.
Polar Trec
What Is My Footprint?
How do one's habits and lifestyle choices affect the environment? Through a short online survey, learners will calculate their own carbon footprints then determine how to reduce their impact on the environment through simple steps, such...
National Institute of Open Schooling
Solutions
Aqua regia, or royal water in Latin, is a solvent that can dissolve solid gold and platinum into a solution. Activity nine in a series of 36 allows classes to learn, through readings and answering questions, what a solution is and the...
Curated OER
Plants in Your Gas Tank: From Photosynthesis to Ethanol
Explore ethanol and how it is produced. Young scientists investigate photosynthesis and fermentation to the concept of conservation of energy and mass. They discuss the environmental and economical benefits of ethanol as a fuel additive.
Curated OER
Electrostatics
Students examine ways positive and negative charges are attracted and repelled by watching teacher demonstrations, and complete activity sheet related to classroom demonstration activities to prove proficiency of knowledge of...
Curated OER
Things That Glow
Third graders study the concept of light as an energy source. In this energy lesson plan students participate in a lab that show them the concept of light as an energy source.
Curated OER
Chemistry & The Community
Young scholars complete a Webquest which investigates the chemistry in items such as shampoo. They research the Internet, perform a lab experiment, and write a scientific lab report with their findings. Upon completion of the activities,...
Curated OER
Einstein's Big Idea
High schoolers investigate the concept of the Einstein's Theory of Relativity while conducting research using the internet and following the outline of the objectives to guide the information search. The lesson includes background...
Curated OER
The Bio-fuel Project: Creating Bio-diesel
Students investigate bio-fuel. In this investigative lesson, students create bio-fuel from vegetable oil waste. Students will analyze, predict, collect and synthesize data from their experiments with bio-fuel.
Curated OER
Light Stick Chemistry
In this descriptive investigation activity, 6th graders conduct an investigation to determine if heat energy affects the brightness of a light stick. The students will form a prediction, collect data and answer 3 conclusion questions.
Curated OER
Water Resource Engineering
Students examine solubility and the significance of water. In this aqueous solution lesson students complete a lab activity on soil profiles.
Curated OER
Lesson 3: Nutrition, Labeling and Packaging
Students explore basic nutrition concepts to help them select healthy diet, evaluate food intake, discuss major food labeling issues, design labels for food products, examine history of food packaging development and how packaging...