[Free Registration/Login may be required to access all resource tools.] During active transport, molecules move from an area of low concentration to an area of high concentration. This is the opposite of diffusion, and these molecules...

Great science fair project ideas! Learn how to ask a testable question and choose from elementary, middle school, or high school science fair project ideas. View examples of testable questions, and see what is changed, what stays the...

Explore three science fair project samples about birds, stain removal, and keeping it cool. See how the report is written after the investigation is complete.

Step-by-step instructions, with photos, of how to prepare an egg for a 'bungee jump' using a plastic bag and elastics, and a yard stick to measure the distance it falls each time it is dropped. The activity investigates the Law of...

This hands-on science activity allows students to explore how materials absorb sunlight differently. Students will create model houses with different materials on the roof and see which material allows the most heat to be absorbed into...

Students will discover how to separate recycled goods by completing this hands-on science activity. Learn how physical properties are used to sort recyclable materials.

This hands-on science activity allows students to use a stream table to learn about the processes of erosion and stream-bed formation. Students will understand the effect of water speed on erosion rate and stream formation.

A site showing the structures of water and ice and explaining how they are affected by hydrogen bonds. Includes a movie animating hydrogen bond formation and disruption.

Fantastic variety of printable activities that cover motion-related principles. Topics include the following: experiments (engineering, structures, forces and energy, fluids, sound and light, patterns, human body); arts & crafts;...

Have you ever wondered how important gases enter and leave cells? Take an up close tour of a pore in a cell membrane. Then explore diffusion, osmosis, and active transport through this collection of interactive models.

A section of NASA's site that highlights the science activity taking place on the International Space Station. Read latest news and groundbreaking findings, and also learn about the careful planning and preparation that go into...

Professor Bassam Z. Shahaskin of the University of Wisconsin home provides "science activities, demonstration shows, videos, and books" that aim to make science "fun" for adults and children.

The Science Museum of Minnesota presents this site that highlights science activities and information related to ancient and modern Maya culture.

Students develop and apply the distance formula and an x-y coordinate plane on a hurricane tracking map, and then use a map scale to determine distance in miles. Then, using MATLAB computer science programming language, students help...

Step-by-step instructions, with photos, of how to construct a solar oven using everyday materials.

An experiment where students launch a simple rocket using a film canister, water, and an antacid tablet.

Step-by-step instructions, with photos, of how to create a message in Braille by gluing beans, or a substitute, onto paper.

Videos that accompany activities that are hands-on challenges that focus on the engineering design process. They use simple materials, allow for multiple solutions, and are ideal for ages 9-12.

Science at Home offers this site full of simple experiments that can be conducted at home. Don't miss the other sections, "forces and energy" and "electrons in action".

Website companion to PBS show, "Rough Science," in which five scientists use their collective expertise to complete a series of tasks. Follow the scientists as they do things like generate electricity, make soap, make antibacterial...

This outstanding website provides an excellent variety of hands-on earthquake activities to help you understand what causes earthquakes.

Step-by-step instructions, with photos, of how to construct and test a wind turbine that produces energy. This experiment does require preparation as it uses PVC pipes, a small motor, and a multimeter, for example.

Step-by-step instructions, with photos, of how to make a metal can come back when it is sent rolling away. The can uses both kinetic and potential energy to roll away and back.

Step-by-step instructions, with photos, of how to create slime made of polymer chains using Borax and white glue.