Elizabeth Cerkez

@zekrec.bsky.social

1023 Followers 692 Following

Associate Professor of Instruction @ Temple U. Chemistry and Chemistry Education Research. (Philly sports + Weather + Swiftie)

Pile of Friendship bracelets, the main one says “cruel sulfur” with purple beads.
A pencil drawing of a duck holding an erlenmeyer flask and wearing lab goggles saying, “Quack”
Nighttime photo of row home rooftops, the northern lights are visible as a band of green close to the roof and a broader band pink further form the horizon.
Set of legos built to resemble crystalline forms of minerals.
Brown Lego square with a gold colored representation of pyrite sitting on top and a pink and green representation of watermelon tourmaline.
Video of two magnets on blue post-it notes. One magnet is pushed towards the other by a finger and it repels the other away, revealing a positive sign underneath.
Screenshot of modules view on canvas with preview work and classwork.
Screenshot of Canvas dashboard with links to PDFs of Week 1 materials in a general chemistry class. Next to each link is a red sad face.
54 minutes ago David E. Sanger Rafael Grossi, the director general of the International Atomic Energy Agency, said on Monday that the power to the Natanz uranium enrichment center had been cut in Israeli strikes on Friday, a disruption that he said probably sent its centrifuges spinning out of control.
Green and white subway tiles that say “Franklin Square.”
Video of a titration. Starts with a murky purple solution, as titrant is added from the buret, the solution turns blue and back to purple. This continues as the solution slowly becomes transparent.
5 volumetric flasks and 5 cuvets. From left to right color shift from red to blue.
Kermit (green frog muppet) is facing himself covered in a hood. The first Kermit has the words "Grade lab reports" while the hooded Kermit says "Start redesigning courses."
Lecture notes showing the relationship between the reaction quotient Q and the equilibrium constant K. A number line is used to show when Q=0 and Q=infinity.
Picture of Pope Frances holding a picture of the pop tart mascot holding a sign saying "Dreams really do come true"
Table from the Mercury and Air Tocix Standards (MATS) Fact Sheet Action • Reconsideration of the “National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units Review of the Residual Risk and Technology Review” (89 FR 38508; May 7, 2024). Reasons for Action • Concerns that the regulation may not be consistent with the authority granted under Clean Air Act. • The estimated costs to power plant owners and operators to comply with the revised amendments to MATS are large given the success the industry has already achieved in reducing emissions of mercury and other hazardous air pollutants (HAP). • We are concerned that this rule creates undue burden on certain coal-fired power plants. • Industry believes that EPA underestimated the compliance costs of the rule and that there are no meaningful public health benefits to be gained from the rule’s mandated reduction in HAP emissions.
White Poster that says “Time to React” around a drawn image of an Erlenmeyer flask with blue liquid and green bubbles.
Drawing of a Job plot on a white board. The plot shows mole fraction on the x axis and absorbance on the y axis. There are data point which form a peak with a maximum at the mole fraction which indicates the stoichometry of the compound.
Looking into a glass beaker with blue LEDs inside. You can just see the green glow of a vial inside.
Meme. Forest Gump running through the US Southwest with a full beard and long hair (with the text "Me, teaching about material I definitely learned more than a decade ago, but re-taught myself two days ago"), followed by a large group of people (with the text "My Class".)
Regina George (played by Rachel McAdams) in Mean Girls "So you agree" meme, with added text "using someone's work without their consent or attribution is wrong"
Teal blue water on a beach, with blue skies with small clouds. There is straw umbrella in the foreground and a pier extending into the water.
Three burgundy crocheted baby hats with navy blue Pom poms sitting on a light colored wood table.
A hand holding a maroon crocheted baby hat against a backdrop of a wooden floor
Snickerdoodles cookies cooling on parchment paper.
A fairly empty and organized lab fridge. Top shelf has organized vials and boxes, other shelves mostly empty.
Inside of a fridge used for a lab fridge. It is very messy, packed with lots of vials and falcon tibes, with blue and orange lids. There are many boxes and stacks of vials on top of one another.
Taylor Swift and dancers in shimmery multicolored fringe jackets dancing with foggy lights and confetti.
Tango game from LinkedIn, where the moon and sun symbols have been replaced by butterflies and guitars.
White TLC plate on a black background after a separation under UV light. Three spots are seen from L to R, glowing orange and yellow band, non-glowing black band, and a glowing yellow and green band.
Eagles Kelly green donut with green sugar sprinkles on a white pastry sheet.
White paper decorated in pink and purple inks with stars, dots, and "Burn Book."
Four markers (L to R: Green, pink, purple, blue) sitting in front of a beaker containing a TLC plate with the colored inks traveling up the plate. The purple and blue inks are separating into pink and purple spots.
Word cloud of my publications. Redox, arsenite, and iron largest.
Red, green, and blue LEDS surrounding three reaction viles.
Large grey HPLC instrument.
Partially completed plastic Lateral flow test for flu and covid.
Three beaded friendship bracelets saying Leo Lion, Better than redox, and all my cell potential.
Five beaded friendship bracelets which say Hydronium, Gibbs, Polar Bear, Le Chateliers, and Equilibrium.
Temple University bell tower in front of morning sunrise of orange and gray on a blue sky. Red Temple T flags shown in front.
Blurry photo of baseball player, Alec Bohm, wearing Phillies red yelling.
The Phillies Phanatic jumping into the arms of an elated Jason Kelce in front of Phillies crowd.
Glass vials filled with colored silvernanoprism solutions. Moving from left to right as blue, teal, purple, and yellow.
Excel grade sheet with auto-populating grades based on a code word.