‘Rocky planets’ looks at the terrestrial planets Earth, Mercury, Venus, and Mars, and also Earth's satellite, the Moon. What lies at the core of a terrestrial planet? What surrounds the core? What is the composition of a planet's crust? The influence and mechanics of internal heat, lithospheres, volcanism, surface processes, regolith, space weathering, erosion and transport are surveyed. What are the factors that determine the naming of planetary surface features? Do these planets have atmospheres? What are the temperatures on these planets? The relationship between greenhouse effects, the ozone layer, clouds, polar ice caps, oceans and cycles is addressed.