Posts

Forensics: Handwriting Analysis

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Yesterday, we wrapped up our forensics unit by learning about forensic handwriting analysis. They learned to analyze letter slants, word spacing, letter formation, and baseline writing. The students were tasked with solving a mystery about who stole the snacks in the teachers' lounge. Real handwriting samples were taken from PUE teachers with the statement, "I'm sorry I took the snacks. I'll pay tomorrow." Students compared the suspects' handwriting samples to the note found at the "crime scene." This was very engaging and lots of fun!! Although this was a quite challenging, about 50% of the groups were able to make a match! 

Forensics: Luminol

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Today, students learned about the use of luminol in crime scene investigation. Today's lab consisted of a non-scary, real-world classroom scenario where luminol could be used to solve a mystery. This was a VERY cool lab! In the beginning of the video, you will see that there is no visible "blood" on the floor. The only way to see what is "hidden" is to spray luminol. Watch and see the results!!!

Forensics: Chromatography

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Yesterday, students turned into forensic investigators to solve a classroom mystery! To determine who wrote a mysterious "evidence note," the students used paper chromatography to analyze the ink of several different black markers. While the inks all looked identical to the naked eye, chromatography allowed the students to separate the hidden pigments. They watched as water traveled up the paper, revealing that each black marker was actually made of a unique blend of blues and reds. By comparing the colorful  "fingerprints" of the suspect markers to the evidence note, students successfully cracked the case. *I didn't get a good picture of the chromatography results from the day of the lab. I attempted to recreate the results, but mine do not look as brilliant as theirs did!

Forensics: Shoe Impressions

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Lab Highlights Foil Impressions : Students pressed their shoes into heavy-duty foil to capture clean, detailed impressions of their soles right in the classroom. Dirt Casts : They also took realistic shoe print casts in the dirt, learning how real investigators preserve outdoor evidence. Class vs. Individual Characteristics : Students analyzed various shoe prints to separate class characteristics (like brand, size, and pattern design) from unique individual characteristics (like wear marks, cuts, and specific rocks stuck in the tread). We will take the cast out Monday and learn to clean it in order to analyze the print better.

Forensics: Fingerprinting

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Mrs. Moss's gifted 5th-graders recently stepped into the shoes of forensic scientists for a hands-on lesson in fingerprint analysis. Using authentic, law-enforcement-grade materials, students learned the precise techniques professionals use to lift and record latent prints. Students also learned to identify the 3 main types of fingerprints: loops, whorls, and arches. Later, they used a clever macro-science trick: printing their own fingerprints onto balloons and blowing them up. This giant expansion allowed our young detectives to clearly identify and analyze the unique minutiae—like bifurcations, bridges, ends, and dots—that make every individual truly one of a kind.

Apples-A-Head!

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Mrs. Moss's gifted 5th graders recently tackled the ultimate physics and engineering test with a high-energy Apples A-Head STEM challenge! Balancing Act & Engineering Design The Mission: Students designed and constructed custom, wearable headwear meant to securely cradle an apple. The Obstacle Course: Students had to navigate a high-stakes relay course without using their hands to stabilize the fruit. It was a fun way to combine critical thinking with active movement! Check out the videos!

When screens lose!

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In Mrs. Moss's classroom, a surprising trend is taking over. Given the choice between free computer time and tangible, real-world puzzles, students are overwhelmingly choosing to unplug. Here is a quick look at the random, imaginative fun taking over our room: DIY Wordle: Moving the popular digital word game to the whiteboard has turned vocabulary practice into a high-energy, collaborative brain-teaser. Next-Level Snap Circuits: Instead of just following the manual, students are inventing their own complex gadgets, pushing the limits of engineering with highly imaginative new designs. Dominos: Classic dominos have become lessons in physics and persistence as students continue to create longer and more impressive domino runs. It makes this teacher happy to see students choosing hands-on learning and entertainment over computer games!