Learning module looking at scientific explanations. Discussion covers theories and how they develop, some well-known theories and their origins, and how theories are revised and refined. Also, covers hypotheses and laws. The three...

Students work in groups to develop an understanding of the size and shape of an object hidden beneath a plywood board, asking questions, testing their reasoning, and drawing conclusions, as scientists do. Students are never permitted to...

[Free Registration/Login Required] This informational text passage discusses the processes of weathering and erosion, along with their effects. This passage is a stand-alone curricular piece that reinforces essential reading skills and...

This article from ScienceDaily illustrates a recent medical study where researchers at Washington University have identified and imaged language areas of the brain in recovery after stroke.

An opportunity for students to experience the nitrogen cycle through observing daily changes in an aquarium. Students test the level of three nitrogen compounds to understand the process of nitrification. Lesson plan gives a lab...

Discussion of the conversion of light energy to chemical energy through the life-sustaining process of photosynthesis. Explores the reactions of photosynthesis, where they take place, and their ecological importance.

Learn about the importance of wildlife in our lives. Look at the role of wildlife in natural processes, as well as in science, agriculture, and medicine. Also, discover how wildlife factors into the Canadian economy. Finally find out how...

Through this series of three lessons, students will gain an understanding of the basics of mineral science. In their investigation they will also work through the scientific process as they practice their observation skills, form...

During this lesson, students will learn the difference between estimation and guessing. Knowing how to estimate is an essential skill that will help students determine approximate totals as well as check the reasonableness of their...

The Welikia Project examined what the landscape of New York City looked like in 1609. Use the map to explore the city then and compare it to today. Provides a collection of thirteen lessons for upper elementary but which can be adapted...

This video segment adapted from Shedding Light on Science illustrates how light changes speed, and thus direction, in a process known as refraction. Includes background reading and discussion questions. [2:05]