This illustrated essay from A Science Odyssey Web site explains the science behind radio waves, including the role of electrons and electromagnetic fields.

In this video segment adapted from Shedding Light on Science, observe demonstrations of the fundamental idea that light travels in straight lines.

A lesson plan for 4th grade science. Kids create a version of the marble roll project to simulate a manufacturing process.

This video segment adapted from KET's Where the River Bends demonstrates how climate change and glacier movement during the Ice Ages destroyed the old Teays River and created the Ohio River, Kentucky's northern border.

Students use Library of Congress primary sources to investigate and examine the impact transportation has had on peoples' lives by comparing and contrasting the turn of the centuries.

In this fast-paced NASA Brain BitesŒ_íěÖ video, an astronaut demonstrates the impact of microgravity on the use of tools in space.

This Lesson Plan is an inquiry based lesson plan that is geared towards third graders. It teaches them about all the different parts of a plant and what makes a plant grow and how they grow. I created this lesson plan with two other classmates. Through this lesson plan the students will be split into groups. Each group will be assigned a flower. They will research their flower and figure out what they need in order to grow (amount of water, amount of sunlight, etc.). They will grow their flowers in class and watch as they change over time! 

Students brainstorm the negative impacts humans have on the earth and learn to call this term the carbon or ecological footprint. They then explore their outdoor space to identify both the negative and positive impacts humans have on the environment. Next, positive actions humans can take to make the planet sustainable are researched so that students can generate a list of things kids can do to sustain the earth. Students make and present posters of the things they will personally commit to doing. As an optional, but impactful activity, a tree is planted in the outdoor space, marking the commitment to continue to reduce ecological footprints and increasing ecological handprint, leading to a more sustainable planet.

Students will begin this inquiry-based activity by predicting how the continents of Earth could move over time. Next, students will complete a lab activity in collaborative groups, in which they will create a model showing how Earth's internal heat energy can create convection currents that result in plate movements. Lastly, students will use their model to explain how Earth's tectonic plates move over millions of years. This lesson results from a collaboration between the Alabama State Department of Education and ASTA.

The lesson provides an overview of cloud formation. Cloud formation results when warm, humid air rises and cools, causing the water vapor in the air to condense and form clouds. In this lesson, students will conduct an activity that demonstrates how this occurs. This lesson results from a collaboration between the Alabama State Department of Education and ASTA. This lesson was modified from NASA series "Investigating the Climate System. They can be freely downloaded at https://www.strategies.org/wp-content/uploads/2011/12/Clouds_04.pdf

Students measure the length of a pea pod and a carrot in non-standard vegetable units (a pea seed) and discuss the advantages and disadvantages of measuring using non-standard measures. Students then practice measuring length of classroom objects to develop the skills of measurement accuracy and precision. In the outdoor garden, students measure three different fruits, vegetables, and/or herbs that are growing there. They convert their measurements between different units of measure in the metric system. For example: The tomato is 14 cm long or 140 mm long. Finally, students research the health benefits of the fruits and vegetables they measured and taste these healthy foods if they wish. 

In this activity, students investigate how the atmosphere changes with altitude. They will obtain atmospheric data for locations of their choosing using online resources, graph it, and examine it to answer questions about changes in temperature, pressure, humidity, and dewpoint with altitude.

In this video segment adapted from NOVA, follow novice runners as they train for a marathon, and discover how quickly the body responds to regular aerobic exercise.

In this video segment adapted from NOVA, explore the theory that small bits of gas and dust combined to form protoplanets billions of years ago, which in turn collided to create the four rocky planets of the inner solar system.

Learn how the Hawaiian Islands were formed by a geothermal hotspot and resulting volcanic activity in this video segment from Nature.

In Blazing a Genetic Trail, by the Howard Hughes Medical Institute, follow this three-step approach to treating genetic diseases.

Searching for things on the Internet can be like hunting for a needle in a large haystack. Just how large is the Internet?

This video segment adapted from the Space Telescope Science Institute shows what the Hubble telescope found when it stared at a single, nearly empty spot in the sky for 10 days in 1995. The unexpected result was a picture of a multitude of galaxies stretching into the distance.

Students use Library of Congress primary sources to examine a set of pictograph documents created by native peoples of Puebla, Mexico in 1531.