Howard Hughes Medical Institute
Icefish Blood Adaptations: Viscosity
Most fish freeze to death when the water is too cold, yet some fish live in the Southern Ocean where the water is often below freezing. Scholars use two models representing the blood from most fish versus the blood from Antarctic fish....
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...
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.
Curated OER
Water Wonders
Young scholars measure the amount of surface tension using a balance scale after a classroom demonstration students diagram the appearance of several liquids and label them.
Curated OER
Group 7 - The Halogens
Properties and uses of the halogen elements are illuminated by this compact collection of slides. Examples of halogen reactions with alkali metals, hydrogen, and water are also explained. This is a nifty resource to support an...
Curated OER
Why Oil and Water Don't Mix
Second graders explore why oil and water do not mix. They make and record their predictions and observe the experiment in which cooking oil is mixed with a glass of water. Students discuss why they think the oil and water did not mix and...
Curated OER
Determination of the Physical Properties of Dietary Fibers
In this dietary fibers activity, students compare and contrast the properties of different fibers: cellulose, hemicellulose, pectin, guar, agar, and xanthan gum. This activity has 5 short answer questions.
Curated OER
The Chemistry of Life
High schoolers study atoms and chemical compounds. They identify certain elements essential to human health, describe physical and chemical properties of water, and name four types of polymers unique to all life forms. They explain how...
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
What is the Best Insulator: Air, Styrofoam, Foil, or Cotton?
Students investigate the properties of insulators by attempting to keep a cup of water from freezing, and once it is frozen, to keep it from melting. They conduct the experiment, record and analyze the results, and answer discussion...
American Chemical Society
Mysterious M&M's
The first in a six-lesson mini unit, all using M&Ms® candies, this physical science activity gets kids to observe a single piece and discover what happens when it is placed in a plate of water. The activity can be used to...
American Chemical Society
Solubility Test
Make sure to consult the teacher's handbook, Inquiry in Action - Investigating Matter Through Inquiry, for two demonstrations that can be done to introduce solubility and measuring crystal mass before having the class conduct this...
Texas State Energy Conservation Office
Investigation: Oil Recovery
Energy conservers investigate gravel size to discover if it impacts the amount of oil recovered in the extraction process.
Curated OER
Solar Kit Lesson #7 - Positioning Solar Panels I: Explorations with Tracking
In this first part of a two-part lesson, learners track and record the sun's azimuth using a solar panel. They graph and analyze the data to identify relationships among the time of day, the altitude and azimuth of the sun, and the...
American Chemical Society
Change in Temperature - Exothermic Reaction
Alone, or as part of the intended unit on chemical reactions, this activity allows learners to experience an exothermic reaction. Here, learners add calcium chloride to a baking soda solution and watch the temperature rise! They will...
Curated OER
Water, Water Everywhere
First graders study water-its properties, its 3 states, and the way we rely on it for everyday living. They read Water, Water Everywhere, draw murals of where they have seen water and the ways they use it and eat/drink snacks that are...
Institute of Electrical and Electronics Engineers
Life Vest Challenge
After reading about the history and science of personal floatation devices, patents, and intellectual property, engineering teams design a life vest for a can of soup. To evaluate which groups considered the need for waterproofing, hold...
American Chemical Society
Exploring Baking Powder
Birthday cake wouldn't be light and fluffy without the chemical reactions between ingredients. Young scientists explore some chemical reactions in the 11th installment of a 16 lesson Inquiry in Action series. They determine the...
Curated OER
All About Matter
Twenty-four questions about matter, the states of matter and the properties of matter make up this interactive online worksheet. Your class will determine the volume of water, the shape of water and the shapes of matter.
Curated OER
Making Oxygen
Use demonstrations to enlighten learners on oxygen's role in combustion. Use potatoes and hydrogen peroxide to increase oxygen concentration in a jar, then stick a glowing splint and a burning wad of steel wool into the newly formed...
Curated OER
Name That Gas!
Young scientists discover that air is a mixture of different gases - mainly nitrogen and oxygen. The properties of some of the other gases found in oxygen are listed in a table, then learners must decide which one of those gases is...
Virginia Department of Education
Vapor Pressure and Colligative Properties
Hate to vacuum, but enjoy using a vacuum pump? Explore a lesson that starts with a demonstration of boiling water at various temperatures by using a vacuum pump. Then scholars design their own experiments to measure vapor pressure and...
American Chemical Society
Float and Sink
We're not talking about the kitchen sink. Learners explore what types of objects sink and float in water in an inquiry-based lesson. With experimentation, they find similarities between materials that float and those that sink.
LABScI
Acids and Bases: Cabbage Juice pH Indicator
Explore the range of pH using an assortment of household liquids. Scholars create their own pH indicators from cabbage and determine the pH of several liquids. To further their exploration, individuals use the same liquids to create...