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This online resource introduces the geocentric and heliocentric models. Exoplants, planets and their motions, planetary orbits, the role of gravity and how the solar system was formed are also covered.
This online resource introduces the geocentric and heliocentric models. Exoplants, planets and their motions, planetary orbits, the role of gravity and how the solar system was formed are also covered.
This short YouTube video introduces you to the planets which make up the solar system.
This fascinating video details the journey that a group of friends made in Nevada. Their aim was to illustrate the solar system to scale.
This YouTube video investigates the structure and composition of the sun.
This online resource investigates the internal structure, outer layers and surface features of the sun.
These four short online lessons cover the following:
This online resource explores the terrestrial, or inner, planets - the planets closest to the sun: Mercury, Venus, Earth and Mars.
This online tutorial will provide you with some guidelines on how to interpret both topographic and geologic maps.
This online resource investigates the features and topology of the ocean floor, the effects of wave erosion and the landforms created by coastal depositions.
Micturition (peeing) starts with urine flowing from the kidneys to the bladder via ureters. The bladder expands using transitional epithelium. Urine exits through the urethra, controlled by internal and external urethral sphincters. Ureters prevent backflow, thereby reducing infection risk