Pressure
Pressure is the force applied perpendicular to the surface of an object per unit area. It is a measure of how much force is applied over a given area.
Factors Affecting Pressure
- Force: The amount of force applied to an area. The greater the force, the higher the pressure.
- Area: The size of the surface over which the force is applied. The smaller the area, the higher the pressure.
Units of Pressure
Pressure is measured in various units, including:
- Pascal (Pa)
- Atmosphere (atm)
- Millimeters of Mercury (mmHg)
- Pounds per Square Inch (psi)
Applications of Pressure
Pressure is involved in numerous everyday phenomena, such as:
- Hydraulics: The transmission of force through the use of liquids.
- Pneumatics: The use of gases to transmit force.
- Weather Systems: Air pressure variations contribute to weather patterns.
Formula for Pressure
The formula to calculate pressure is:
Pressure = Force / Area
Study Questions
.◂Science Worksheets and Study Guides Third Grade. Where plants and animals live
Study Guide
Where plants and animals live 
Worksheet/Answer key
Where plants and animals live Worksheet/Answer key
Where plants and animals live Worksheet/Answer key
Where plants and animals live Vocabulary/Answer key
Where plants and animals live Vocabulary/Answer key
Where plants and animals live
Worksheet/Answer keyWorksheet/Answer keyWorksheet/Answer keyVocabulary/Answer keyVocabulary/Answer keyThe resources above cover the following skills:
LIFE SCIENCE
Unity and Diversity
Construct an argument from evidence to explain the likelihood of an organism’s ability to survive when compared to the resources in a certain habitat (e.g., freshwater organisms survive well, less well, or not at all in saltwater; desert organisms survive well, less well, or not at all in woodlands).
Create models that illustrate how organisms and their habitats make up a system in which the parts depend on each other.