A collection of resources about tunnels that includes basic facts about tunnels, challenges faced by tunnel diggers, famous tunnels from around the world, and a lab that helps you understand the kinds of forces that keep tunnels from...

Set variables for a simulated collision and observe the changes in reaction between two carts. Options include changing the weight of one cart and the type of collision to occur.

Useful articles about how to support children's bilingual language development. Includes different models and tips for ESL classrooms. Part of a larger site with loads of tips and resources for "launching young readers."

Click on a highlighted portion of the skeleton to open up a brief video presentation and written summary explaining how that part of the human has come from our ancient ancestors.

A visual interactive illustrating the impact of tectonic plate motion. Users will move each plate to see what happens to the Earth's surface.

For those who are sun savvy, check out solar cycles and solar storms or conduct an independent investigation of behaviors of the sun.

Examine what science lies behind keeping flying machines in the air. The wings angles, shape and placement, speed and what else must be considered in the development of device?

Scientists use a variety of tools to reconstruct storms in an effort to understand how they develop. These studies are conducted in an attempt to prepare for future storms. Peer close inside a megastorm, analyze and reconstruct it, and...

A classroom activity where students discover whether an object rolls, slides, or stays put.

Many changes across the country during the westward expansion were features that could be captured on a map. Review this map and select characteristics to be illustrated. Characteristics such as population, major cities, railroads, and...

An introductory activity where students discover the way things roll and slide down ramps and hills.

Set up several ramps around the room and allow the students to explore and investigate how they work.

Discussion and integrations ideas for the read aloud book, Ten on the Sled by Kim Norman.

Students make two snowy hills, one steep and one gentle, to discover their effects on rolling objects.

Take the students out to the playground so they can explore things that go down the slide.

Take the students outside on a walking field trip where they can notice ramps and slanted surfaces in the neighborhood.

Students explore what happens to a rolling object when the steepness of the ramp is increased.

Share and discuss ideas the students have about ramps and rolling objects.

Discuss classroom explorations and discoveries about ramps.

Have students make ramps out of flat pieces of cardboard and other materials.

Cleverly animated matching game asks players to match animals to their homes. [All instructions and prompts are voiced, not written, making this an excellent resource for young children and English language learners who need practice in...

Students experiment with different materials and objects to make a sled that will slide down the ramps.

Play along in a game of hide and go seek with Peep and his friends by clicking on their hiding places. [All instructions and prompts are voiced, not written, making this an excellent resource for English language learners who need...

Simple animation through which students can practice dividing flowers equally among two or three spaces.