Science Dept News Dec 2017

Science Dept News Dec 2017
Posted on 12/13/2017
Science Dept News Dec 2017

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‚ÄčGHS Science Department News

December 2017

Students Gather Mortality Data

Students in Environmental Science traveled to Linwood Cemetery to collect data on birth and deaths dates for Galesburg. Students then used this data to compare survivorship and mortality for Galesburg during different time periods. Infant mortality was much higher for those born between 1800 and 1899 than those born between 1900 and 1999. We also learned that men tended to die younger than women in the 1800s. That difference in ages narrowed throughout the 1900s.

Hot Dog!

Plugging hot dogs into the wall outlets? What better way to learn about voltage, electric current, and resistance! And s’mores over an ohmic heating element makes for a great dessert.

Liquid nitrogen and superconductors lead into liquid nitrogen ice cream! Two desserts in one day … Yes!

Mamma Mia! Pasta for Biology Class

Biology students learn how to make and use a dichotomous key by classifying types of pasta. Classifying pasta with different shapes, textures, sizes, and masses make for a great comparison with classifying different types of plants or animals.

Pollution Hunting

Environmental Science Students studying particulate pollution in the school. Microscope slides coated with petroleum jelly were hung in various places around the school for 48 hours. The slides were collected and students used microscopes to identify and count the number and type of particulates in three, randomly sampled FOV (Field of Visions). They then calculated the particulate density in particulates/mm2.

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Seed Dissections

Earth Systems students dissected corn and bean seeds. Seeds evolved during the Silurian Period and were an important evolutionary advance for plants.

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