Grade level: Upper elementary
Program description: All weather forecasting begins with observing the current conditions to predict future weather. Close examination of our rooftop weather station brings definition to students’ observations of the day’s weather. A barometer, anemometer, hygrometer, thermometer, rain gauge, wind vane, weather balloons, and satellites are tools used to collect weather and atmospheric data. The effect of geographic features such as mountains, oceans, rivers, and plains are discussed as the students create different storm phenomena in the laboratory. Fog, lightning, thunder, tornadoes and hurricanes educate students as they explore the physical science principles involved in these dangerous weather conditions, including:
Note: Curriculum alignments based on requirements for Hamilton County, Tennessee including 3.8.spi.4, 3.8.spi.5, 3.9.spi.1, 4.8.spi.1, 4.8.spi.2, 4.8.spi.3, 5.8.spi.1, 5.8.spi.2, 5.8.spi.3, 5.8.spi.4
Outcome: When the paper is standing up, the air pressure under and above the paper are the same. When you blow under the paper, the fast moving column of air reduces the air pressure under the paper. However, the air pressure the above the paper has stayed the same and is now more than the air pressure under the paper. This air pressure is enough to push the paper down.
Outcome: When air pressure outside the jar gets higher, it pushes down on the balloon making the straw point up. When air pressure get lower, it pushes up on the balloon from the inside making the straw point down.