BBC
Bbc: Gcse Bitesize: Radiation Treatment
X-rays, gamma rays and beta particles are all used in medicine to treat internal organs. X-rays are produced by firing electrons at a metal target and gamma rays are emitted by the nucleus of radioactive atoms. Gamma rays are used to...
Concord Consortium
Concord Consortium: Structure of an Atom
Observe the probable location of electrons around an atom. Trace the electrons over time to draw conclusions about where electrons are likely to be found around an atom's nucleus. How does the trace pattern relate to the electron cloud...
Concord Consortium
Concord Consortium: What Are Nature's Building Blocks?
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...
Florida State University
Florida State University: Molecular Expressions: Introdution to Cell and Virus Structure
This resource provides a detailed diagram of animal, bacterial and plant cells and viral structure. Also included are detailed drawings, with definitions, of each of the cellular organelles.
Math Science Nucleus
I. Science Ma Te: Integrating Science, Math and Technology
This site offers a wealth of online textbook-related materials that encourage the discovery of science in the world around us. Enter the site to access material on specific topics. Each section contains reading material (complete with...
Khan Academy
Khan Academy: Cell Theory Questions
This study resource from Khan Academy provides practice questions for the MCAT. "Cell theory" questions are provided on this resource.
MadSci Network
Msn: What Happens in a Nuclear Reaction?
From The Mad Scientist Network web site. Using a question and answer format, this page discusses three types of nuclear reactions - spontaneous decay reactions, nuclear fision reactions, and nuclear fusion reactions. Each reaction type...
MadSci Network
Msn: What Regulates the Speed of Hydrogen Fusion?
From the Mad Scientist Network web site. Using a question and answer format, this page describes the various types of fusion processes and the physical requirements needed for their initiation and sustenance. Factors affecting the rates...
MadSci Network
Msn: How Would You Explain the Process?
From the Mad Scientist Network web site. Using a question and answer format, this page explains the differences between nuclear fusion and nuclear fission. The details of each process are sketched in simple language.
University of Arizona
Prokaryotes, Eukaryotes, & Viruses
This tutorial compares prokaryotic and eukaryotic cellular organization and contrasts cells with viruses. Includes a practice quiz to test your knowledge.
University of Washington
University of Washington: Central Visual Pathways
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.
Science Education Resource Center at Carleton College
Serc: Observing Cell Division
In this activity, students make microscopic observations of onion root tips, discuss them with classmates, then make detailed drawings that are shared.
Museum of Science
The Atoms Family: Spectroscope of an Atom
"The Phantom has provided you with a simulated spectroscopy of an Atom! Amuse the Phantom by observing the spectroscope and you'll learn more about the Atom." Observe and review the structure of the atom.
Estrella Mountain Community College
Online Biology Book: Cells: Origins
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.
Thomas Jefferson National Accelerator Facility
Jefferson Lab: Reading Passages: Looking for Quarks Inside the Atom
Read and fill in the blanks of this passage explaining quarks inside the atom. Each blank has a dropdown menu with choices. When you finish, click CHECK MY ANSWERS. If you pick a wrong answer, the right answer will be displayed along...
PBS
Nova: Doomsday Asteroid Hale Bopp & Hyakutake
NOVA provides a report on comet Hale-Bopp and comet Hyakutake. Content includes discovery and observational information.
Other
University of Kansas: Quarked!: Word Search
A word search with vocabulary related to the study of subatomic science.
Other
A World of Particles: The Neutron
A World of Particles offers a history of the discovery of the neutron, an exclusive particle in an atom.
Thomas Jefferson National Accelerator Facility
Jefferson Lab: Coloring Book: Quarks More Than Meets the Eye
Understand and appreciate the research conducted at Jefferson Lab about the smallest particle, the quark.
Other
University of Delaware: Cell Ultrastructure
This resource is a cellular biology course site with clickable list that provides electron micrographs of various cell organelles and the like.
Quia
Quia: Cell Organelles
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.
Sophia Learning
Sophia: Eukaryotic vs. Prokaryotic Cells: Lesson 3
This lesson explains the difference between Eukaryotic and Prokaryotic cells. It is 3 of 4 in the series titled "Eukaryotic vs. Prokaryotic Cells."
American Chemical Society
Middle School Chemistry: Protons, Neutrons, and Electrons
Explore the particles that make up atoms: protons, electrons, and electrons.
Famous Scientists
Famous Scientists: Ernest Rutherford
This short biography about Ernest Rutherford explains how he became known as the father of nuclear chemistry and physics.
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