Media-rich detailed description of modern cloning technology and the two different processes used: artificial embryo twinning and somatic cell nuclear transfer.
Animated tutorial with captions shows how stem cells play many important roles in our bodies from conception through adulthood.
This video segment from the Secret of Life School Video: "On the Brink: Portraits of Modern Science" explores the genetics of breast cancer. [3:40]
The shared set of genes for body segments, possessed by all animals, are discussed in this video segment from Evolution: "Great Transformations."
Learn how genetic variation is the raw material of evolution, and learn how restricted gene flow can lead to the formation of new species. [11:52]
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
This is a resource for students to use in their study of minerals. It begins with a general description that includes the list of essential characteristics of a "mineral." Minerals are then grouped alphabetically. Selecting a name provides large colorful pictures from the Smithsonian and a description. There are also special sections for Carbonates, Oxides, Sulfides and Sulfates, and Phosphates.
Detailed geographical information on any country is available at this site. Within the World Map section, you can get facts and figures about each country's geography, demographics, government, political system, flags, historical and cultural information, climate and weather.
Listen to this podcast which explains the basics of plate tectonics on Earth. [0:39]
Listen to this podcast which explains the various processes that form sedimentary rock. [0:32]
Use the search to find information on rock forming minerals. Characteristics including formula, color, cleavage, and hardness are presented in an easy-to-read chart.
A geometric series is the sum of the terms of a geometric sequence. Learn more about it here. [2:53]
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
See an example where a geometric series helps us describe a savings account balance. [6:17]
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
A geometric series is the sum of the terms of a geometric sequence. Learn about geometric series and how they can be written in general terms and using sigma notation. [4:28]
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
Provides advanced information about circles through the use of examples and a brief video lesson. [1:00]
Angles are explained through examples and a video lesson. [0:48]
Angles, parallel lines, and transversals are explained through examples and a video lesson. [1:01]
A definition, examples, and a video lesson all help to explain basic information about circles. [0:36]
Provides an explanation, examples, and a video lesson all related to the four common types of transformation. [1:00]
Features a definition and a video lesson on congruent triangles with examples. [1:11]
Conjecture is explained through examples and a video lesson. [0:41]