Fourth graders identify and use different forms of writing for various purposes. Using the internet, they read and gather information and write quesitons for their own investigations on the various pets they could own. They practice...

Eighth graders find connections between numbers in a table; use Pythagoras' theorem in a general algebraic form; and measure accurately from a scale drawing to find a method that might enable the helicopter to land inside a rectangular...

Students review the lessons from the whole unit before devising a plan of action for a volunteer effort. They work in teams using a worksheet to determine a social cause that they develop an effective idea to promote. They design an...

Students study the relationship between current, voltage and resistance in a series circuit.  In this investigative lesson students watch a demonstration and see how voltage is measured and see what OHM's law is.   

For this math patterns worksheet, students solve 10 problems in which a pattern is made with matchsticks on a grid. Students figure out how many matchsticks it will take to continue the pattern. Students also use simple algebra to figure...

Students use the Internet and other reference sources to gather information on a space topic. They create a trading card displaying the information learned and import pictures from libraries and the Internet.

Students examine their home and calculates the amount of ventilation found. They also compute the surface area of different objects. They determine what is needed to reduce the amount of radon entering the home.

Students classify clouds as transparent, translucent or opaque. They conduct an experiment to determine the visual opacity of several classroom objects and then conduct further observations of clouds.

Students identify how water moves through materials such as rocks or sand. Students measure the permeability of water through glass spheres to represent the movement of water in sand, an aquifer, or another sediment. During the...

Young scholars examine electricity.  In this circuits lesson students complete an activity that shows them the configuration of circuits. 

Students study prairie conservation and the plant and animal life within.  For this prairie life lesson students divide into groups and complete a lab activity. 

Students explore how a battery-powered light box demonstrates how to transmi timages.

Students explore the characters and plot of the story, "Charlotte's Web" through the twenty-two lessons of this unit. Characters, facts, and details of the story are recalled and discussed and form the basis of several activities in this...

Students conduct Internet research to track the path of Hurricane Rita. They record the sea surface temperature of the Gulf of Mexico during and after the hurricane and draw conclusions about how hurricanes extract heat energy from the...

Young scholars explore the differences between surface water and ground water. They collect data using maps and graphs and investigate a Texas river basin and a nearby aquifer. They complete a written report including maps and data...

Pupils read excerpts from an explorer's journal and then become investigators and navigators themselves. Students answer questions about the difficulties and time it took for the explorers to travel from Washington to New Orleans and...

In this extinction worksheet, students review how species evolve and how species go extinct. Students compare and contrast gradualism and punctuated equilibrium. This worksheet has 6 fill in the blank and 4 short answer questions.

Students examine diversity on the planet and the differences within a species.  In this investigative lesson students complete a lab that allows students to better understand the relatedness between plants. 

In this cell potentials worksheet, students review reduction potential, the equation to calculate the cell potential, and voltage. This worksheet has 18 problems to solve.

This interactive tutorial on visualizing geologic features contains animated block diagrams that show how the surface expressions of dipping layers, folds, igneous intrusions, and faults are related to subsurface structure and cross...

This animation will complement the diagrams of muscle function in advanced level texts. A good visualization of the process.

View a colorful 3-D diagrams of viruses and learn about how their structure helps them infect plants, animals, and bacteria.

This animation will complement the diagrams of muscle function in advanced level texts. A good visualization of the process.

Discover the alpha-helix and the beta sheet, both secondary structures of proteins. View diagrams and a 3-D model of the different parts of a protein molecule.