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This is a simple activity fully driven by imagination. Using materials from the home, toys, or items from nature, learners create their own world to play with.

This is an activity (located on page 131 of the PDF) related to sleep and circadian rhythms as well as space travel.

In this activity, learners will use Google Sky to observe features of the night sky and share their observations.

In this online activity, learners adjust mountain snowfall and temperature to see how glaciers grow and shrink. They will use scientific tools to measure thickness, velocity and glacial budget.

This simple, yet surprising physics demonstration challenges preconceptions about forces, and demonstrates the strength of atmospheric pressure.

In this astronomy activity (page 3 of the PDF), learners will examine the effects of gravity on a person’s pulse and explore how gravity can differ from planet to planet.

In this activity, learners participate in a scavenger hunt, searching for and recognizing minerals and products that contain minerals.

In this design challenge, learners will engineer a structure and see if it can survive an earthquake they create.

Did you know that you would be a different age if you lived on Mars? It's true!

This is a quick activity (located on page 2 of the PDF under Nasturtium Leaves Activity) about surface tension.

In this online Flash game, learners will explore a coral reef using an underwater remotely operated vehicle (ROV).

In this simple demonstration, learners investigate the properties of air pressure. Learners place an index card on top of a glass full of water, then invert the glass.

In this lesson that includes hands-on activities and demonstrations, learners discover that it is the tilt of the Earth's axis (not its proximity to the sun) that causes the seasons.

In this activity, learners will go outside and create a constellation.

In this activity, learners make their own "tornado" using two soda bottles and water.

In this activity, learners interpret three trackways and use measurements and a formula to infer the relative speed of dinosaurs.

In this activity/demonstration, learners observe what happens when two ping pong balls are suspended in the air by a hair dryer. Use this activity to demonstrate how rain drops grow by coalescence.

In this astronomy activity (page 6 of the PDF), learners will compare and contrast two planets in the solar system using data obtained from the internet.

In this on site "field trip" activity (located on pages 6-9 of PDF), learners get hands-on experience identifying building materials by playing "Building Bingo".

In this online interactive, learners use fossils to infer temperatures 55 million years ago, at the sites where the fossils were found.