We all know someone who won't eat the banana with a brown spot, the grape with a dimple, and the apple with a bruise. Scholars use different fruits to explore what happens when fruits really start to decompose. They set up an experiment...

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...

Several factors affect the rate of a chemical reaction including temperature, surface area, and concentration. Using an experimental approach, learners explore the effect concentration has on this rate while maintaining consistency with...

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...

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...

Do not let the class just sit and rot. Pupils learn how decomposition and nutrient recycling is important to an ecosystem. Groups design an experiment to determine how environmental conditions affect decomposition. They develop a poster...

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...

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...

Your heart may not be pumping, but there are still many chemical reactions that continue in your body. An installment of a video series on chemical reactions describes the decomposition process of our bodies after death. It pays...

One in every seven truckloads of perishable foods delivered to grocery stores gets thrown away. Is there anything that can be done with this waste? One solution is to recycle the old produce and turn it into fertilizer. The video, part...

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...

From molecules to nanotubes, an engaging unit explores the world of tiny science. Fifteen hands-on experiments and lessons engage young scientists as they learn chemistry. Discussions, worksheets, and data analysis reinforce the concepts...

Humans have both positive and negative impacts on biodiversity. A video lesson highlights important human impacts on biodiversity through examples and diagrams. The narrator provides insight to the progression of the topic from...

So we don't have to paint the entire wall? Groups measure a classroom wall and aspects of the wall that would not be painted. Using the measurements, teams determine the area of the wall that would be covered in paint. The lesson is the...

Determine whether the class can find area and perimeters with and without using coordinates. The 11th portion of a 22-part unit contains three questions that require pupils to find areas of triangles and composed figures within...

Break down a great lesson on decomposition reaction with an informative video. Fourth in a 35-part series, the resource builds from the previous lesson explaining the role of a catalyst. The detailed video explains the experimental...

Find areas of figures where the sides are not horizontal or vertical. The eighth segment in a 22-part series presents figures on grids that have sides that are neither horizontal nor vertical. Pupils devise methods to compose or...

To compose or decompose, that is the question. The fifth portion of a 22-part series presents area problems of polygons. Pupils determine how to compose or decompose the polygons into shapes whose area is easily calculated. 

Find out what Aristotle meant by describing worms as the intestines of the earth. Learners conduct an experiment to observe and quantify the work of the earthworm in the environment. An engaging activity has young scientists create their...

What do decomposers and a compost have in common? Decomposers help a compost break down, or decompose, things that can biodegrade and become similar matter. Watch a video that explores the science of composts.

Burial practices are the focus of a short video that not only investigate how and why bodies decompose, but also looks at some modern approaches to the treatment of bodies and burials.

There's more than one way to solve an equation — three, actually. Scholars learn how to solve simple linear equations in one variable using three different methods, which include using balance scales, using decomposition (e.g., turning...

When life gives you mold, make penicillin. Scholars design an inquiry experiment to determine what causes rotting and mold growth. It also covers decomposers and the important role they play for other living things. 

Give families the information needed to support their child in the mastering of subtracting numbers with a two page reference sheet offering detailed descriptions and labeled examples.