In this learning activity, you'll explore what malware is, what the different types of malware are, and how you can protect your computer from these threats.

Learners use this Structured Query Language tutorial to gain an understanding of how a SELECT statement is built. This learning object has audio content.

In this learning activity you'll examine the software operation Dynamic Host Configuration Protocol (DHCP), which automatically performs TCP/IP configurations.

Learners view the seven segments of an Ethernet frame and the types of information each represents.

Learners answer questions about nonferrous metals and alloys using a game show format. Immediate feedback is provided.

Learners listen to a lecture given during the early days of nanotechnology titled, “There’s Plenty of Room at the Bottom.” Dr. Richard Feynman made the presentation to the American Physical Society on December 29, 1959. Animation makes this lecture fun to absorb.

In this animated object, learners examine the mechanisms for gas exchange among the lungs, blood, and tissues.

In this colorful, interactive object, learners examine how materials on the nanoscale compare with those on the macroscale. The focus is on the difference between macroscale and nanoscale gold in both color and melting point.

In this animated object, learners read about the uses of nanotechnology. The sciences, engineering, electronics, and other disciplines converge in nanotechnology. Examples are given for applications in manufacturing, biomedicine, and environmental science. Concerns about possible environmental effects are discussed.

Test your knowledge of environmental issues

Match the words

Review for your Dating the Earth quiz

Encuentra la palabra y diviértete.