American Chemical Society
Using Chemical Change to Identify an Unknown
If you have taught the first lesson in this mini unit, learners already know that cabbage juice and vinegar cause chemical changes in some materials. Now, they get a chance to use them to compare the liquids' reactions to five known and...
American Chemical Society
A Catalyst and the Rate of Reaction
More than 90 percent of chemical products are made using a catalyst. Lesson demonstrates the way a catalyst changes the rate of reaction without altering the chemical reaction. A catalyst doesn't appear as a reactant or a product, yet it...
American Chemical Society
Using Chemical Change to Identify an Unknown
If you discover an unknown powder, how do you determine if it is safe? Lesson uses four different tests to identify the properties of various powders that appear the same. Then scholars get an unknown powder and have to determine which...
Curated OER
What's Hiding in Your Home Cabinets?
Learners analyze a variety of products found in their own homes to determine their toxic content. They identify words such as caution, warning or danger and relate them to their relative toxicity levels.
Curated OER
How Do Toxins Affect the Human Body?
Learners study toxins. In this biology lesson plan, students identify toxins contained within household products and determine specific affects that toxins may have on the human body.
Curated OER
Playing With Polymers
Students explore the world of polymers. In this chemistry instructional activity, students make polymers and observe their properties. Follow-up questions and extension activities are included.
American Chemical Society
Neutralizing Acids and Bases
Most things naturally strive for balance, and acids and bases are no exception. Neutralization of acids and bases allows scholars to explore the color changes associated with the pH scale. After this exploration, pupils neutralize two...
Curated OER
Safe Subs
Students investigate ways to reduce use of hazardous materials. In this safe substitutes lesson, students review hazardous wastes used in many homes and possible safe substitutes for these harmful chemicals. Students write and decorate...
Curated OER
Where Do We Get Clean Water?
Students investigate the concept of a filter. They use simple supplies in order to construct one after watching a demonstration performed by the teacher. An important warning that the project water is not clean for drinking is included....
Curated OER
Solar Kit Lesson #1 Solar Cell Inquiry
Pupils use a selection of solar panels, lamps, motors, and an AA battery to get as many motors or lights to operate as they can in an allotted time period. For each successful arrangement, they draw a diagram of their setup, label the...
Virginia Department of Education
Hurricanes: An Environmental Concern
Hurricanes, typhoons, and tropical cyclones are the same type of storm, but their names change based on where they happen. Scholars use a computer simulation to learn about hurricanes. Then they hypothesize ideas to prevent hurricanes...
Curated OER
Why Eat Organic?
Ninth graders explore the concept of organic eating. In this environmental stewardship lesson, 9th graders compare and contrast organic foods with conventional foods and discuss the benefits of eating organic foods.
American Chemical Society
Using Color to See How Liquids Combine
Blue-tinted water is added to unknown liquids that have been tinted yellow to find out how they interact. This is a memorable activity that is part of an investigation on the properties of liquids, which is part of a unit on the...
American Chemical Society
Dissolving a Substance in Different Liquids
Second of six lessons in a unit on dissolving, this one focuses on how sugar behaves in different liquids. Learners stir it into water, alcohol, and oil and make observations. This lesson can stand alone, but is best used as part of the...
American Chemical Society
Dissolving Different Liquids in Water
Not many youngsters realize that solids aren't the only materials that can possibly be dissolved in water. During this investigation, they find out that some liquids can dissolve in water as well. This is part of a unit on solubility,...
American Chemical Society
Using the Combining Test to Identify Unknown Liquids
Once investigators have learned how their mystery liquids interact with water during the preceding activity, they now use their observations to identify them. This is an ideal conclusion to the mini unit on the properties of water.
American Chemical Society
Look-Alike Liquids
Here is the first of four experiments to differentiate among unknown liquids by their behaviors and properties. Pupils observe how different liquids respond to being placed on plastic and paper, and they take notes about their...
American Chemical Society
Density: Sink and Float for Liquids
We don't think of liquids as floating typically, but a quick look at any oil spill tells a different story. Lesson explores various densities of liquids and why this fact is important. After observing the density variation, scholars...
American Chemical Society
Developing Tests to Distinguish Between Similar-Looking Liquids
Each group talks about how to test unknown liquids based on their findings in the previous experiment. In this second of four activities, they test unknowns on wax paper, newspaper, and construction paper. As a stand-alone, this activity...
American Chemical Society
The Ups and Downs of Thermometers
What has a thermometer earned that your pupils haven't? A degree! After reviewing the previous lessons about molecules and degrees, scholars observe how thermometers work before building their own. The module includes a activity sheet.