Explore the particles that make up atoms: protons, electrons, and electrons.

This short biography about Ernest Rutherford explains how he became known as the father of nuclear chemistry and physics.

Find out about Hans Bethe, one of the founders of quantum physics.

[Free Registration/Login may be required to access all resource tools.] What a radioisotope is and why they have unstable nuclei. Elements in which all of the isotopes are radioactive.

A slide-show presentation illustrating the differences between eukaryotic and prokaryotic cells.

Take this interactive, multiple-choice quiz over subatomic particles, then review your score and any missed questions at the end.

This site features a clear picture of the plant cell with a concise explanation of its key parts and their functions.

Interactive illustration displays the organelles of an animal cell and their functions.

Learn about the complex structures inside cells and what their functions are.

Describes plant cells and the structure and function of their different parts.

This site lets students practice vocabulary words related to cell organelles. The same vocabulary words are presented in one of four different games for students.

This lesson explains the difference between Eukaryotic and Prokaryotic cells. It is 3 of 4 in the series titled "Eukaryotic vs. Prokaryotic Cells."

At this site from the Purdue University, the elementary subatomic particles are described and electromagnetic radiation is detailed. Includes learning exercises and answers.

Describes the three types of plant cells and their differences, and the structures within a plant cell and their functions.

[Free Registration/Login Required] Study the basics of radioactive decay and the properties of atomic nuclei in Marie Curie's laboratory and classroom. A PDF worksheet and a video tutorial are also available. [3:32]

[Free Registration/Login Required] Learn about the most basic particles of matter, including quarks and leptons, and the four fundamental interactions using this interactive simulation. A PDF worksheet is also available.

Discover the organelles of a cell, and how their structure contributes to the cell's function.

Through full-color images and concise information, learn about the origin of cells. Discover some of the notable studies surrounding the history of life on Earth.

A wealth of background information on nuclear fusion and its potential use as a commercial energy resource. The advantages of nuclear fusion over other resources, the conditions required for its successful implementation and the future...

Presents labeled illustrations of a plant cell and an animal cell which demonstrate the parts that are common and different. Next is a table listing cell organelles and stating whether each is present or absent in a plant or animal cell....

Activity 3 of this module investigates: How do we know what's inside an atom? From Ernest Rutherford's Gold Foil Experiment to his investigation of the Plum Pudding model, students become aware of the Nuclear Model of an Atom. Also in...

Explore the world of central visual pathways. The visual pathway leads from the eye to the primary visual cortex. There is a detailed visual description of this process. Check it out.

Dutch version of the well-known "Particle Adventure" physics website that teaches students about atoms, mass, particle physics, and quantum physics. The site discusses theories related to physics and provides other links related to the...

From the Atomic Archive - the online companion to the award-winning CD-ROM. This page defines nuclear fusion and depicts the process by an informative diagram. Includes numerical values which describe the typical energy values for fusion...