Unlike most world maps would have us believe, the Earth is actual tilted at a 23 degree angle as it rotates in place. This slight, and I mean slight, tilt has a big impact on what happens on the Earth's surface. In some cases it will result in hotter areas and colder areas of the Earth over the course of its movement around the son. Because the Earth takes so long to revolve around the sun (365 days), this results in changes in climate on Earth. This is the reason that most of the areas on Earth see four unique seasons. The amount of sunlight that reaches any surface on the planet is directly affected by whether it is point at the sun for a short or long time. Depending on where the planet is located in its revolution around the sun determines which season the Northern or Southern Hemispheres are experiencing. Which ever hemisphere is tilted toward the sun is experiencing the warmer seasons. That hemisphere will experience longer days and shorter nights because the sun is present much longer. The opposite hemisphere is undergoing the colder seasons, shorter days and longer nights.
This collection of worksheets will visually demonstrate to students how the position of the axis affects the amount of sunlight a particular hemisphere will experience. We will also show how tides with greater or lesser force are generated and maintained. You will find sheets that look at how seasons are created, solar and lunar eclipses, and how the Earth makes revolutions around the sun.