Exploring solids, liquids, gases and plasma, Biology and Chemistry teacher Dennis Goode’s students give presentations demonstrating their knowledge.
Creating a chemical reaction, sophomore Diandra Carabasu mixes dish soap and vinegar for her presentation. She used food coloring to show how the equation worked in a volcanic reaction. "I love how amazing a reaction can be when you combine certain substances; it's fascinating," Carabasu said.
Sophomore Ceasar Tapia clutches a bag of ice cream to explain how its state changes from solid to liquid. The group reasoned how the molecules caused the matter to melt and change state. "We were trying to find a visual way to show the class how objects change from a solid to a liquid," Tapia said. "We were also pretty happy when we got to eat the rest after our presentation."
While sophomore Allen Louie holds the board, Brook Hartzell gives examples on how and why water changes state. Hartzell explained why ice floats in water despite being the same substance. "Presenting was my favorite part because my group was easy to work with," Louie said.
Explaining water's velocity, mass, and molecules, this group uses an essential hydrogen bond for their presentation. Sophomore Cade Spencer demonstrated his project by drawing out the molecular equation for water. "I learned the molecular theory of solids, liquids and gases," sophomore Andrew Bui said.
A reaction of chocolate milk and vinegar shows how the concoction changes from a liquid to a gas. With a week to finish, groups utilized resources found at home. "For most students we learn hands on, and so we were able to really understand how the changes happen,"sophomore Jessenia Montenegro said.
After considering the change of state for a flower, sophomore Andrada Stanciu decides to explain how gold changes state. Sophomore Kendra Salcedo brought in props which included a bar of gold and an orb containing gold flakes. "I learned the importance of communicating with your team," Salcedo said.