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Girlstart Blog

17February

After School Spring 2017: Week 3

Weathering and Erosion

This week, Girlstart students (and future geologists!) reviewed physical weathering, chemical weathering, and erosion before putting different types of soils to the test!

Before beginning their activity, students worked together to review the difference between chemical and physical weathering. Tables volunteered their ideas, then STEM Crew leaders provided an antacid tablet for girls to observe. Students watched the tablet dissolve in a glass of water and create bubbles as an example of a chemical change. Crew leaders explained that the dissolved tablet had undergone a chemical change. Minerals in rocks can also dissolve - a common example of chemical weathering. On the other hand, physical weathering does not lead to a change in a rock’s chemical composition.

Posted in After School Blog

15February

Hands-On Wednesday

Underwater Paper

Defy the laws of nature with this refreshing experiment! Solve the question: How in the world does paper stay dry when submerged under water? Use these three easy household items to figure it out: paper towel, clear cup, and clear bowl.  

Posted in STEM Hands On

13February

After School 'to Go' Spring 2017: Week 2

Exploring the Earth

During this week’s activities, Girlstart students learned about skills used by geomorphologists, who study geological processes and resulting landforms. Students brushed up on vocabulary that included “deposition,” “erosion,” and “weathering,” then got to work forming their own canyon models!

Posted in After School Blog

13February

After School Spring 2017: Week 2

Cookie Mining

Girlstart students are digging deep and learning skills found in the Petroleum Engineer career! In small groups, students practiced mining for “mineral deposits” and calculating the environmental cost of their excavations.

Posted in After School Blog

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