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21February

After School 'to Go' Spring 2017: Week 3

It’s a Landslide!

This week, students learned about concepts used in the Seismologist career! Girls applied these skills to the problem of a landslide in a small town.

 

In small groups, girls used baking pans and paper ramps to set up their landslide simulators. Small toy houses and a paper bridge were used to model a town located at the bottom of a hill. Sand was poured at the top of the “mountain” to represent loose sediments. Lastly, students took turns shaking their baking pans to simulate an earthquake!

Posted in After School 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

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