All content is written, photographed, and edited by our amazing COSMOS students!
Monday 7/14/2025
During today's lecture, we learned more about aerosols, clouds, and climate. Our first activity during the lecture was the Root Beer Bubble Clouds activity. After pouring the root beer into a cup, we added salt to the cup of root beer, and we noticed that the foam/bubbles expanded. Then we learned more about pressure and temperature and completed our second activity, the Gas Expansion Carbon Dioxide Cylinder. We pumped up the canister and released the gas, and saw that the temperature of the canister decreased. After the lecture, we started on part one of the Oxygen Winkler lab.
Demo 1: Root Beer Bubble Clouds
Demo 2: Gas Expansion Carbon Dioxide Cylinder
Day 1 of Oxygen Winkler Lab:
Timelapse of the lab!
Tuesday 7/15/2025
Today, we worked on our Ethics Project during science communication by finishing our script and recording our rough draft videos. We combined with Cluster 6 at Tata Hall and continued to create our presentation slides, starting to record our videos. After lunch, we continued to progress on our project lab in which we divided into our respective groups: One-Pot-Polyol, Enzyme, Solar Cell, Biodiesel, and Seawater.
Working on our ethics project!
Small Group Projects:
Two Emilys, Bodhi, and Kayden: We worked on neutralizing remaining formic acid by pouring saturated sodium bicarbonate solution.
Alexandra, Katherine, Sarah, and Roshen: We applied titanium oxide to glass and soaked it in fruit based dyes to test different consistencies of titanium oxide paste.
Ritika, Matthew, Amelia and Chris: We investigated the effect of temperature on the enzyme cellobiase, which is used in the process of creating renewable fuel.
Chloe, Ellie, Kyuwon, and Jenna: We went out to Scripps to collect samples and began precipitating for the Oxygen Winkler Lab.
Ashley, Cheyann, Elliot, and Marra: We used particle counters to determine the amount of particles released by pure petroleum diesel.
Wednesday 7/16/2025
Today's lecture with Skip was about particle formation, in which we delved deeper into the characteristics of our atmosphere that contribute to aerosol release, the formation of smog, and the factors of air pollution. To support our lecture, we did the following demonstrations with their respective representations: Milk sunset to show how particles change the flow of light, Cloud in a bottle, where we introduced ash particles, water, droplets, and pressure to form a cloud, which we then drove a beam through to highlight the path of the laser. Finally, we did an ozone analysis with orange peels, where we inserted orange peels into a bottle containing ozone (O3) and reacted with orange peels. We then once again shone the laser through it, which revealed the beam of light. During the lab, we began part two of the Oxygen Winkler Lab.
Demo 1: Cloud in a bottle
Demo 2: Ozonolysis of orange peels
Demo 3: Milk Sunset
Day 2 of Oxygen Winkler Lab:
Timelapse of the lab!
Thursday 7/17/2025
On Thursday, we combined with Cluster 6 at Tata Hall to continue on our projects. We finalized our ethics project recordings during science communications in the morning to ensure completion before the deadline. Following lunch, we continued to progress on our project lab, in which we divided into our respective groups: One-Pot-Polyol, Enzyme Kinetics, Solar Cell, Biodiesel, and Seawater, in which we collected more data and began to brainstorm and think about our final presentations.
Ethics Project!
Project Lab:
Photo Dump!
COSMOS Newsletter Student Team: Ashley Kang, Sarah Chen, Alexandra Nguyen, Chloe Brinley, Kyuwon Han, Ritika Datta, Marra Sullivan, Emily Lee, Elliot Pak, Roshen Pillay, and Matthew Hong