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Pacific ocean plate tectonic evolution. Return to Animations Evolution of the Pacific Ocean (150 mya - Present) The Pacific Ocean is the world's largest ocean, covering nearly one-half of the globe. Though huge, the Pacific is getting smaller. It was once much wider when all the continents were joined together in the supercontinent, Pangea.

The Pacific ocean basin is getting smaller because the Atlantic Ocean is opening and North America and South America are moving westward. Breakup of gondwana. Blooms Taxonomy Tutorial FLASH - CCCS Faculty Wiki. Forces on a Current-Carrying Wire. CELLS alive! Gallery. Mitosis: An Interactive Animation. This animation demonstrates the stages of mitosis in an animal cell.

Mitosis: An Interactive Animation

Use the control buttons along the bottom to run the complete animation. Click on any intermediate stage (for example, Anaphase), and see a representative still frame. Interphase: Cells may appear inactive during this stage, but they are quite the opposite. This is the longest period of the complete cell cycle during which DNA replicates, the centrioles divide, and proteins are actively produced. For a complete description of the events during Interphase, read about the Cell Cycle. Prophase: During this first mitotic stage, the nucleolus fades and chromatin (replicated DNA and associated proteins) condenses into chromosomes.

Prometaphase: In this stage the nuclear envelope breaks down so there is no longer a recognizable nucleus. Metaphase: Tension applied by the spindle fibers aligns all chromosomes in one plane at the center of the cell. Cancer cells reproduce relatively quickly in culture. Physics of Superheroes 2 - Electro & Magneto. Physics Flash Animations. We have been increasingly using Flash animations for illustrating Physics content.

Physics Flash Animations

This page provides access to those animations which may be of general interest. The animations will appear in a separate window. Charging an Electrophorus by Induction Using a Negatively Charge. Inducing a Positive Charge on a Sphere. Charging a Two-Sphere System by Induction Using a Negative Objec. Multimedia Physics Studios - Table of Contents. Ripple tank circular wave reflection. Ripple tank: circular wave reflection Added by David Fairhurst on Feb 6, 2008 An interactive animation demonstrating circular wave reflection in a ripple tank.

Ripple tank circular wave reflection

Click in the water to generate a circular wave that undergoes reflection at the tank boundary. This resource is from the unit Bouncing Waves which is part of Absorb Physics. The full Absorb Physics course normally sells for £400 - but you can get it free for your school! All you need to do is ask your colleagues in the maths department to try our new Sumdog games... Momentum Main Page. The electromagnetic spectrum. The electromagnetic spectrum Added by David Fairhurst on Feb 6, 2008 An interactive animation showing the electromagnetic spectrum.

The electromagnetic spectrum

Place the cursor over the different parts of the spectrum to find out what they are, how the waves are generated, what materials they pass through and what they are absorbed by. This resource is from the unit Electromagnetic Waves which is part of Absorb Physics. The full Absorb Physics course normally sells for £400 - but you can get it free for your school! All you need to do is ask your colleagues in the maths department to try our new Sumdog games... IR camera. IR camera Added by David Fairhurst on Feb 6, 2008 An interactive animation showing a night-time view of a town.

IR camera

Click on the animation to view the scene using an infra-red camera. Ask pupils to identify what they can see. Real waves on water. Real waves on water Added by David Fairhurst on Feb 6, 2008 An interactive animation illustrating how real water waves propagate.

Real waves on water

Diverging lens. Diverging lens Added by David Fairhurst on Feb 6, 2008 An interactive animation demonstrating the virtual image of a pencil produced by a diverging lens.

Diverging lens

Move the object pencil left and right to observe the image produced. Converging lens. Converging lens Added by David Fairhurst on Feb 6, 2008 An interactive animation demonstrating the real and virtual images of a pencil produced by a converging lens.

Converging lens

Move the object pencil left and right to observe the image produced. This resource is from the unit Converging Lenses which is part of Absorb Physics. The full Absorb Physics course normally sells for £400 - but you can get it free for your school! Combining waves 2 destructive interference. Combining waves 2: destructive interference Added by David Fairhurst on Feb 6, 2008 An interactive animation demonstrating destructive interference.

Combining waves 2 destructive interference

Three strings of beads are shown: one travelling right to left; the second travelling left to right and the third is the superposition of the first two. Combining waves 1 constructive interference. Combining waves 1: constructive interference Added by David Fairhurst on Feb 6, 2008.

Combining waves 1 constructive interference

A wave squeezing a spring. Investigating weight and upthrust. Investigating weight and upthrust Added by David Fairhurst on Feb 6, 2008 An interactive animation illustrating upthrust with a rock and an apple. Click the arrow button to lower an object into the water and raise it again. Balancing a seesaw. Balancing a seesaw Added by David Fairhurst on Feb 6, 2008 An interactive animation demonstrates a seesaw. Two weights on the seesaw and moved backwards and forward and their weight adjusted to balance or unbalance the seesaw. A ball moving in a circle. A ball moving in a circle Added by David Fairhurst on Feb 6, 2008 An interactive animation illustrating how centripetal force depends on mass, radial distance and speed. The cell an electron pump. Spraying a car. Oersted's experiment. Oersted's experiment.

Generating electricity. Generating electricity. Magnetic field solenoid. Magnetic field: solenoid. A moving magnet in a coil. A moving wire in a magnetic field measuring the induced current. A gold-leaf electroscope. Rutherford's experiment. Rutherford's experiment. Home of CELLS alive! Science Revision - Games and Activities.