Physical Weathering

12345678910
Across
  1. 3. Rocks and sediment grinding against each other wear away surfaces.
  2. 5. causes many rocks to break.
  3. 8. overlying materials are being removed.
  4. 10. Major glacial (cold) and interglacial (warm) periods are initiated by changes in the Earth's orbit around the Sun.
Down
  1. 1. occurs when air temperature drops low enough to freeze water (32°F), then increases enough for it to thaw again.
  2. 2. are the smallest size of sediment (much smaller than sand) and are responsible for the milky, colored water in the rivers, streams, and lakes that are fed by glacier.
  3. 4. the perceptible natural movement of the air, especially in the form of a current of air blowing from a particular direction.
  4. 6. changes affecting the form of a chemical substance
  5. 7. occurs when physical processes affect the rock, such as changes in temperature or when the rock is exposed to the effects of wind, rain and waves.
  6. 9. pressure a measure of the relative pressure change of a fluid or a solid as a response to a temperature change at constant volume.