Any mixture that contains more than one phase of matter is a heterogeneous mixture. Sometimes this can be tricky, because a change of conditions can alter a mixture. For example, an unopened soda in a bottle has a uniform composition and is a homogeneous mixture. Once you open the bottle, bubbles appear in the liquid.
Pearland is located in northern Brazoria County at 29Â°33â²16â³N 95Â°17â²45â³W / 29.55444Â°N 95.29583Â°W / 29.55444; -95.29583 (29.554349, â95.295959) south of Houston. Portions of the city extend north into Harris County, and a smaller portion extends west into Fort Bend County.
It is bordered by the city of Pearland on the east, south, and west. To the north in Harris County is the city of Houston. According to the United States Census Bureau, the city has a total area of 2.1 square miles (5.4 km 2), all of it land.