Curated OER
Gumdrop Crystal Models
A great way to learn about molecular structures is to make a model. Gumdrops and toothpicks are used to construct crystal models. The models are based on theories of crystal shapes that occur because of positive and or negatively charged...
Curated OER
# 18 Determination of the Set Time for Epoxy Adhesive
Students recognize epoxy glue formation as two part polymerization (usually the curing agents act as co-monomers). They monitor the reaction by the changes in viscosity of the reacting mass, the temperature rise and fall, and the...
Curated OER
Sunrise/Sunset
Third graders discovver what causes the dramatic colors of a sunset by seeing the changing color of light as it passes through a clear container of water to which milk is gradually added. They measure the liquids and observe what happens...
NOAA
Climate Is Our Friend…Isn’t It?: Make an Extinction Polyhedron
Climate affects populations in different ways. Scholars research extinct organisms and mass extinctions in part three of the 10-installment Discover Your Changing World series. They create graphic organizers, then fill in the...
Curated OER
Water Pollution
Here is a fine lesson for fifth graders that will give them an idea of the variety of impacts that human-introduced pollutants have on the environment. After an initial class discussion and teacher-led demonstration, pupils brainstorm...
Curated OER
Endocrine System: Hormones
The many images and labeled diagrams in this PowerPoint will help learners understand different areas of the endocrine system. The slide
show starts with information about the absorption of lipid and protein based hormones, and then...
Teach Engineering
Common and Natural Logarithms and Solving Equations
Log some practice with logarithms. A PowerPoint presentation provides a tutorial on the change of base formula involving natural logarithms and solving exponential equations with logarithms in the fourth installment of a seven-part...
Curated OER
Carbon Dioxide - Sources and Sinks
Where does all of the carbon dioxide come from that is supposedly leading to climate change? Earth science pupils test animal, plant, and fossil fuels as sources in this investigation. Using an indicator, BTB, they are able to detect the...
Curated OER
Meats
A presentation about food production contains information, terminology, methodology, and chemical explanations for the process by which consumable animals are slaughtered, smoked, cured, or stored. It could fit into a food production...
Alvord Unified School District
Taking Good Care of Ourselves: Personal Hygiene
Freshen up your classroom (and students) with this personal hygiene presentation. Colorful images and clear language help adolescents learn about the changes their bodies are undergoing and the things they can do to ease the transition...
American Chemical Society
Moving Molecules in a Solid
Who likes magic shows? In the fourth of five lessons, pupils view a scientific magic trick. The ball fits through the ring easily, but then moments later, it won't pass through anymore. What changed? Can we reverse the change? Scholars...
NOAA
Please Pass the Salt
Salinity is the focus of two experimenters that work to answer the question, How does salt change the physical properties of water? Super scientists compare the freezing rate of salt and fresh water, combine the two waters to...
Nuffield Foundation
Investigating the Effect of Temperature on the Activity of Lipase
How does temperature affect lipase activity? Young scholars conduct an experiment to collect data on the interaction of lipase at different temperatures. They add lipase to a solution of milk, sodium carbonate, and phenolphthalein and...
Nuffield Foundation
Making a Calibration Curve for Starch Concentration
How well can your class concentrate on solutions? Scholars use colorimeter absorption to explore a starch concentration calibration curve. They add iodine to different starch solutions to see how the concentration of the solution changes.
Texas Instruments
Endothermic and Exothermic Processes
Students investigate temperature using the TI. In this chemistry lesson, students analyze the change in temperature, as chemicals are dissolved in water. They analyze data collected using the CBL 2.
Cornell University
Thin Films
Combine mathematics and science to calculate measurements of unmeasurable materials. Individuals use knowledge of density and volume to determine the thickness of the film used in production. They also apply stoichiometry to...
Science 4 Inquiry
The Ins and Outs of Photosynthesis
The most important chemical process on Earth is photosynthesis. Scholars explore the changes in the gases in our atmosphere as life on Earth developed. They create a model of photosynthesis and consider simple questions.
Curated OER
Avoiding Carbon Dioxide Emissions from Burning Fossil Fuels
Chemistry and earth science meet in a lesson on carbon dioxide emissions. After reading about atmospheric problems caused by using fossil fuels, science stars balance equations for the burning of different alkanes. They compute the...
Curated OER
Fueling Body Activities - Digestion
Not only is the human digestive system covered in this biology worksheet, learners will also explore the digestive process of other animals. The 30 short-answer questions address modes of heterotrophic nutrition, the function of each...
Curated OER
AP: Chapter 41: Animal Nutrition
Ms. Foglia has created another comprehensive biology worksheet that you can use with your advanced learners. The topic is animal nutrition and the digestive system. Questions address nutrients and deficiencies, stages of food processing,...
Curated OER
Lab Tests, Results, and Sulfuric Acid
You may want to change the title of this chemistry PowerPoint to "Identifying Compounds in the Laboratory." Individual slides explain tests that can be performed to confirm what element you have: carbon dioxide, carbonates, and metal...
Curated OER
Biology Jeopardy
Play Jeopardy as you review what might possibly be an entire year's high school biology course! The vast variety of questions requires that you read through the slides to make sure that they all relate to your curriculum. You could make...
Virginia Department of Education
The Colligative Properties of Solutions
How can you relate colligative properties of solutions to everyday situations? Pupils first discuss the concepts of density, boiling and freezing points, then demonstrate how to accurately determine the boiling and freezing point of...
Virginia Department of Education
The Ratio of Surface Area to Volume
Demonstrate the ratio of surface area to volume in your high school class by using phenolphthalein, gelatin, and an onion. Intrigue the class by leading a discussion on osmosis and diffusion, then making "scientific jello." Participants...
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