How can you tell the difference between endothermic and exothermic reactions? Chemistry scholars perform and observe two chemical reactions, measure the temperature throughout, then draw conclusions about changes in energy from their...

What has more energy than a room full of pupils after a fire drill? This lesson plan! Explore the changes in energy during different chemical reactions, discover why some reactions feel cold and others feel hot, and tackle the concept of...

Waste not, want not! Science scholars explore manure as an alternative energy source through reading and experimentation. Groups construct their own biofuel digesters and observe the process of methane production. The teacher's guide...

Puzzle your way through to a new understanding of area. Scholars learn about the area of polygons through equidecomposability, the idea that polygons that can be decomposed into the same set of pieces have the same area. By using...

You'd be surprised what you can do with a string! The constraint is the length of string, and the task is to maximize area. Given a series of composite shapes, learners must create a formula for the maximum area for a specified...

While well intentioned, human intervention sometimes has negative effects. Learners explore this and other environmental topics as they respond to four free response exam questions. Topics span from the implementation of bioelectric cars...

Students explore natural decomposers. In this decomposing lesson, students participate in a WebQuest to discover how nature handles decomposition. Students compare natural methods for decomposition with recycling efforts.

In this recycling and waste disposal activity, students check one of 5 boxes with predictions on how long certain materials such as styrofoam and glass take to decompose and disappear underground. There are 10 items that students must...

Students investigate the different levels of the rain forest by comparing it to an apartment.  For this ecology lesson, students practice using forest related vocabulary words and complete a vocabulary data sheet.  Students...

Second graders study subtraction facts. In this mathematics lesson, 2nd graders discuss how to solve two digit subtraction problems. Students recognize that there are many different methods or strategies one can use such as using...

The PowerPoint opens with video footage of the decomposition of nitrogen triiodide and then explains it with diagrams. Graphs of exothermic and endothermic reactions are exhibited, as well as one for the effect of a catalyst on reaction...

Students investigate what types of materials decompose, and at what speeds.

Students collaborate in an experiment where they decompose water into simpler substances through the process of electrolysis. They collect, measure, and observe data and then place the data into a table. Accomodations for students with...

In this stoichiometry learning exercise, students calculate balance the chemical equations and then calculate the moles needed to complete or activate the chemical reaction. Students also calculate the volume or grams needed for each...

For this stoichiometry worksheet, students balance chemical equations. Students apply the concepts of stoichiometry to solve for each problem provided.

Learners observe what occurs as baking soda is heated. They explain why a chemical rather than a physical change occurred during the procedure. Pupils identify the tpe of reaction (decomposition). Students conduct a glowing splint...

In this reactions worksheet, learners predict the products of 10 equations given the reactants and the type of equation such as decomposition, synthesis or single displacement.

Students discover the benefits of composting. They identify the steps of decomposition as well. They are read a book and discuss what items decompose.

Students conduct labs to gain an overview of chemical reactions. They observe examples of synthesis, decomposition, single displacement and double displacement reactions. They identify certain products by the use of litmus and splint tests.

Young scholars discover the concept of decomposition. They examine how it makes the soil more fertile and how it helps plants. They put a compost bin in their backyard and record their observations.

Students identify insects living in rotting logs. In this decomposition lesson, students observe pieces of a rotting log, they look at the insects that have inhabited the log and create a chart that shows their findings.

Get big results out of a small-scale lab! Young chemists observe the electrolysis of sodium sulfate using a microscale experiment. A colorful indicator solution combined with the production of gas bubbles yields a variety of observations...

What's the proper way to convert fractions? A short video shows three quick examples of converting an improper fraction to a mixed number. Pupils practice doing their own conversions to better understand the skill.

Students create a compost pile and chart changes as the materials decompose. Students draw pictures of items placed into their "landfill" and predict how and whether the item will change or not. After two weeks, students write...