Read about photosynthesis, what light and dark reactions are, the structure of a leaf, the conditions needed for photosynthesis to occur, where and how photosynthesis takes place, and how root structure impacts on photosynthesis.

Covers the three main types of rocks, different weathering processes, erosion, and the rock cycle.

Learn all about clouds, how they form, the different types, and how they can be used to predict the weather.

Learn about the different stages of the Earth's water cycle, and about processes involving water, including runoff, infiltration, and the differences between hard and soft water.

Discusses food, why we need it, and the types of nutrients that food for humans must have.

Looks at the two categories of natural resources, what they are used for, their distribution around the world, threats to natural resources, recycling and composting, and conservation.

The issue of obesity is addressed - what it is, the causes, the health and social problems it causes for the individual, types of fats in food, reduced fat and diet foods, how to prevent it, how to help someone with a weight problem, and...

Learn about milk and adult teeth, the types of teeth we have and their functions, the anatomy of a tooth, dental decay and tooth plaque, how to take care of your teeth, what dental braces do, what causes bad breath or halitosis, and why...

This site contains lessons using Geometer's Sketch Pad for elementary and middle school aged students.

Many sports use a ball in some way or another. We throw them, dribble them, hit them, kick them, and they always bounce back. What makes a ball so bouncy? In this experiment you can investigate the effect of air pressure on ball bouncing.

In this project, you'll need: a puck, a hockey stick, a tape measure, at least one helper with a stopwatch and an empty rink. Have your friend start the watch just as you make contact with the puck, and stop it when the puck hits the...

The mathematics resource consists of an assessment with hints and solutions. Students answer questions that review proportional reasoning.

This expansive unit created by McCracken County Schools focuses on the properties of matter. Multiple lessons focus on the concept of scientific modeling of matter particles. Included in this unit are various activities to reach all...

The students will become the food web in this fun interactive classroom activity. Detailed instructions, background information, guiding questions, and activity worksheets are provided.

Learn how to infer the implicit theme in a work of fiction, distinguish theme from topic, and make complex inferences using textual evidence.

Learn how to explain a playwright's use of dialogue and stage directions.

In this lesson, students will review two elements of fiction, setting and plot, and learn how the setting influences the plot in stories.

There are more than five hundred different species of skates and rays in our oceans. Scientists say that these fish are closely related to sharks, sharing a common ancestor from around 400 million years ago. This article provides an...

Seals are mammals that live parts of their lives on land and other parts entirely in the water. They breed and care for their babies on land, but spend most of their lives in the ocean. This article provides an in-depth look at these...

Chocolate begins as a seed of the tropical cacao tree. It has been a prized taste sensation for more than 2,500 years. One reason chocolate is so nice to eat is that it melts just below body temperature. So it really does melt in your...

Ants are small, but important insects. Ant anatomy, reproduction, life cycle and community are discussed. Impact on the environment and humans is also described.

This is an interactive inquiry where students will investigate the speed of an object and the energy it exerts as it crashes into other objects. Students will understand that the more speed an object has, the more energy it has in a...

This Teaching With Historic Places lesson plan about Thomas Edison's laboratories is filled with maps, readings, critical thinking questions, and photographs related to Edison's labs and inventions. This site explains and details the...

Here you will find examples of inventions created by children. They submit their ideas along with drawings and plans. Many of these are made into real objects and posted for the inventors to see what they would look like in real life....