This activity will show the sorting process using the Quick Sort Divide and Conquer algorithm that is used by a computer when sorting data without using a computer.

How does energy flow in and out of our atmosphere? Explore how solar and infrared radiation enters and exits the atmosphere with an interactive model. Control the amounts of carbon dioxide and clouds present in the model and learn how these factors can influence global temperature. Record results using snapshots of the model in the virtual lab notebook where you can annotate your observations.

An open source crime mapping software originally developed by the US Department of Justice.

Data on growth by region, population decline, population density, center of population, and local government area populations.

For a quarter century, the federal government provided funding for cities large and small to raze "blighted" or "slum" neighborhoods. Though improved housing opportunities was the ostensible goal, over time, cities used federal funds to stimulate commercial and industrial redevelopment. Through these programs, cities displaced hundreds of thousands of families from their homes and neighborhoods. Renewing Inequality visualizes those displacements and urban renewal more generally.

Statistical table showing respondents's perceptions towards the nation's progress in coping with illegal drugs.

Statistical table of attitudes towards the honesty and ethical standards of judges organized by demographic characteristics. Lower income earners and elderly citizens tend to rate judges lower.

Key figures and trends of turnovers for various industries released on quarterly basis.

Use a virtual scanning tunneling microscope (STM) to observe electron behavior in an atomic-scale world. Walk through the principles of this technology step-by-step. First learn how the STM works. Then try it yourself! Use a virtual STM to manipulate individual atoms by scanning for, picking up, and moving electrons. Finally, explore the advantages and disadvantages of the two modes of an STM: the constant-height mode and the constant-current mode.

Semiconductors are the materials that make modern electronics work. Learn about the basic properties of intrinsic and extrinsic or 'doped' semiconductors with several visualizations. Turn a silicon crystal into an insulator or a conductor, create a depletion region between semiconductors, and explore probability waves of an electron in this interactive activity.

Students will be able to explore the different types of soil by planting and monitoring their own plants!  Using the soil book, soil kit, and different soil, the students will have hands-on experiences learning about soil.  Dive into the different soil types and allow your students access to expand their knowledge using creativity and hands on experiences! 

What happens when an excited atom emits a photon? What can we deduce about that atom based on the photons it can emit? A series of interactive models allows you to examine how the energy levels the electrons of an atom occupy affect the types of photons that can be emitted. Use a digital spectrometer to record which wavelengths certain atoms will emit, and then use this knowledge to compare and identify types of atoms. Students will be abe to:

This profile provides maps, charts, and tables pertaining to state capacity and generation of renewable electricity. Tables include data for total net summer capacity and total net generation with rankings for each category. Users can view this data alphabetically by state, by capacity, or by generation. An interactive map allows users to navigate to specific state profiles and view the top 10 renewable capacity states simultaneously.

An excel spreadsheet for school counselors to use to track their time and monitor alignment with state code requirements.Walkthrough Video of Time Tracking Tool (24 minutes)

Ranks all 50 states in total energy production. Includes links to tables which rank production of crude oil, natural gas, coal, and electricity; crude oil emissions; total energy consumption; and energy prices.

Students will review the immigration data set and draw conclusions regarding changes in immigration from the 1800s to the early 1900s. Some students may find it easier to compare two decades while others may be able to compare ranges of decades from each century. Once conclusions about changes in immigration have been made, students should identify the reason for the change.

Students will review the immigration data set and draw conclusions regarding changes in immigration from the 1800s to the early 1900s. Some students may find it easier to compare two decades while others may be able to compare ranges of decades from each century. Once conclusions about changes in immigration have been made, students should identify the reason for the change.
Students will review the immigration data set and be able to identify where in the world most immigrants came from during specific time periods in history.

Students will review the immigration data set and draw conclusions regarding changes in immigration from the 1800s to the early 1900s. Some students may find it easier to compare two decades while others may be able to compare ranges of decades from each century. Once conclusions about changes in immigration have been made, students should identify the reason for the change.
Students will review the immigration data set and be able to identify where in the world most immigrants came from during specific time periods in history.

Students will review the immigration data set and draw conclusions regarding changes in immigration from the 1800s to the early 1900s. Some students may find it easier to compare two decades while others may be able to compare ranges of decades from each century. Once conclusions about changes in immigration have been made, students should identify the reason for the change.

Remixed to add a few guided questions as conversation starters?

Transistors are the building blocks of modern electronic devices. Your cell phones, iPods, and computers all depend on them to operate. Thanks to today's microfabrication technology, transistors can be made very tiny and be massively produced. You are probably using billions of them while working with this activity now--as of 2006, a dual-core Intel microprocessor contains 1.7 billion transistors. The field effect transistor is the most common type of transistor. So we will focus on it in this activity.