On Friday, Mrs. Donelson's freshman biology students tested how their own breath can change the chemistry of a solution. By blowing bubbles into Bromothymol Blue (pH indicator), the CO2 they exhaled formed carbonic acid, dropping the pH and turning the liquid from blue to yellow. They are leaving their solutions under a UV light over the weekend and will make new observations on Monday! 🧪

2 days ago, Carly Byer
Student pouring solution into beaker
Students at a lab table one exhaling into a straw into the beaker
Student exhaling through a straw into a beaker
Student holding beaker
Beakers with the solutions
We will be hosting another Bilingual College and Career Expo this year on November 14 from 9 to 11 a.m. in the Upper Campus. Enter through the north entrance. For more information, call Director of Multilingual Kelsey Podgorski or College and Career Counselor Curtis Menke 815-759-5513.
2 days ago, Carly Byer
Asiste a este evento para una oportunidad de ganar premios divertidos EXPOSICIƓN CARRERAY UNIVERSIDAD BILINGUE DE MCHS 2026 Únete a nosotros a un emocionante viaje hacia tu futuro en nuestra próxima exposición Post-secundaria Ā”ACOMPƁƑANOS AHORA! SĆ”bado, 14 de noviembre de 2026 9:00 AM-11:00 AM McHenry High School Upper Campus Entrada norte 4724 W Crystal Lake Rd, McHenry, IL 60050 No te pierdas esta oportunidad incomparable de: Conectarte con funcionarios de admisiones y personas de la comunidad que brindan información. Recopilar información sobre reclutamiento militar, becas, oportunidades vocacionales y ayuda financiera. Asistir a sesiones informativas y talleres sobre preparación para la universidad. Para mas información, contacta: Kelsey Podgorski Directora de Educación Multilingüe de MCHS o Curtis Menke- Consejero de Universidades y Carreras 815-759-5513
Attend this event for a chance to win fun prizes. MCHS bilingual college and career expo 2026 Join us for an exciting journey into your future at our upcoming post-secondary expo. Saturday, November 14,2026 9-11 a.m. McHenry High School Upper Campus North Entrance 3724 W. Crystal Lake rd. Mchenry Il, 60050.  Don't miss this unparalleled opportunity to connect with admission officers, recruiters and informational people in the community. gather information on military recruitment scholarships vocational opportunities and financial aid. Attend insightful sessions and workshop on college readiness. For more information call Kelsey Podgorski, Director of Multilingual Education at mCHS or Curtis Menke- College and Career Counselor 815-759-5513
Get ready for 2027-2028 course selection! Explore course options, learn about various career pathways, attend grade-level presentations and meet the teachers at our Next Step Night. This night is intended for 9th, 10th, and 11th grade students & parents/guardians. Join us October 29 from 6-8 p.m at the Upper Campus! Learn more: https://www.dist156.org/o/curriculum-and-instruction/page/next-step-night
4 days ago, Carly Byer
Next Step Night Get ready for 2027-2028 course selection. Explore course options, learn about various career pathways, attend grade-level presentations and meet the teachers. 6-8 p.m. Thursday, October 29 Upper Campus For current 9th, 10th, 11th grade students parents/guardians
Noche de los próximos pasos. Explore los cursos del próximo año, conozca las diversas trayectorias profesionales, asista a presentaciones en español y hable con los profesores. Jueves 29 de octubre, de 6 p.m. a 8 p.m. Upper Campus. Para estudiantes actuales de los grados 9, 10, 11 y para padres o tutores.
Last week, Courtney Desiri, a student teacher in the alternative program had students work on life skills and made breakfast burritos from start to finish including cleaning the kitchen and doing dishes. Students were responsible to prep all the food, cook the food and clean up the kitchen along with the eating area when done. Students enjoyed the life experience and did a great job!
4 days ago, Carly Byer
Students making food
Students preparing food
Congratulations to our PE students of the quarter! The students have been selected based on their efforts in demonstrating a positive attitude, participation in activities, work ethic, respect and integrity.
4 days ago, Carly Byer
PE Students holding shirts. Elise Lane, Leah Cunningham, Barret Sowizrol and Isaac Bodecker
Juniors: Sign up for the December 12 ACT for a chance to win a bag of prizes! Ten juniors who sign up for the December ACT will be randomly chosen to receive a prize bag. Potential prizes include: $25-$100 Amazon gift cards, free senior year parking pass, free prom ticket and more! Prizes vary for each bag. SIGN UP by November 6: https://www.dist156.org/o/curriculum-and-instruction/page/act
5 days ago, Carly Byer
Juniors. Sign up for the December 12 ACT and enter a raffle for a chance tow in prizes. Ten students who sign up will be randomly chosen to win a bag of prizes! Sign up for the December ACT by November 6. Possible Prizes  Amazon gift cards $25-$100 MCC Swag. Free parking pass for senior year. Free prom ticket. Jimmy Johns gift card. Candy and snacks. Chick-fil-a gift card
Juniors/Grado 11 Registrate para el ACT del 12 de diciembre y particpa en una rifa para tener la oportunidad de ganar premios. Diez estudiantes que se registren seràn elgidos al azar para ganar una bolsa de premios. NO dejes dinero sobre la mesa. Fecha límite de inscipción: 6 de noviembre. Tarjetas de regalo de Amazon de $25 a $100 Regalos de MCC Pase de stacionamiento gratuito para el grado 12 Entrada gratuita el baile (prom) Tarjeta de regalo de Jimmy Johns. Dulces y aperitivos Tarjeta de regalo de Chick-fil-a
Marching Warriors earned their first true class championship since 2021 on Sunday by taking FIRST PLACE in Class 3A at Sandwich MusicFest. In addition, they ranked third overall at the event and completed a full sweep of all individual caption/category awards in their class for Best Percussion, Best Auxiliary [Color Guard], Best Music and Best Visual.

They were also at ISU on Saturday participating in the Illinois State Marching Band Championships where they improved their ranking by five places from last year! Great job, Marching Warriors!
6 days ago, Carly Byer
Band with trophy and sign that says McHenry with hand-drawn flowers
Marching band with McHenry standing in front of Savage Garden decor and holding trophy
Four students holding trophies
Dual credit art appreciation visited the Art Institute on Thursday for a guided tour on art and activism. šŸŽØ
6 days ago, Carly Byer
Students sitting in a room looking at an art piece with a tour guide.
Introduction to Business students pitched their own nonprofit organizations. Students had to think like true executive directors and master the full business ecosystem by incorporating clear, compelling mission statements, sustainable funding sources, an efficient operational flow and the tax laws and transparency requirements that surround real-world nonprofits. Great job!
9 days ago, Carly Byer
Two students in front of slide that says Homeland helps providing shelter food and care
Two students in front of slide that says "unit 2 project create a non-profit organization
Student in front of slide that says tax and transparency media advertisement reports
Thanks to everyone who made our Manufacturing, Trades and Industry Expo a succesful evening! MTI has led students to internships and careers. Some students are even employed part-time while they're still in high school after connecting with vendors at MTI. We also loved seeing children of all ages being fascinated by the machinery.
10 days ago, Carly Byer
Students talking at the Mitsubishi Electric booth with a machine in front of them
People in the manufacturing lab looking at a HAAS machine
A robot looking dog posing
Student talking to graphics Jessup booth
A student using remote control, the other one next to him smiling
Students talking to firemen booth
Students talking to physical therapy booth
Hallway full of people at booths

This Wednesday: Make plans now to join us for our annual Manufacturing, Trades and Industry (MTI) Career Expo on Oct. 14 at Upper Campus.
Local organizations, businesses and educational institutions will show students and families the variety of career opportunities available in manufacturing, trades, industry and healthcare.

12 days ago, Carly Byer
Flyers for the Oct. 14 MTI Career Expo at MCHS
It's homecoming time! šŸˆJoin us at our homecoming football game tonight at 7 p.m.! Alumni tent opens at 6 p.m. Let's go Warriors! 🧔 Tickets: https://gofan.co/event/6827715?schoolId=IL15583
16 days ago, Carly Byer
Homecoming Football McHenry VS Hampshire Friday Oct9 Kickoff at 7 p.m. McCracken Field Honoring our 2026 Distinguished Graduate Inductee Amy Druml Class of 1994. Alumni Associaton. Join us at the MCHS alumni tent food, fun prizes, special viewing area. The MCHS alumni tent is located at the southwest corner of the track. All MCHS alumni are invite.d Catering provided by meat and ptoato eatery and mchs food service.
Monday there is no school in honor of Columbus Day and Indigenous Peoples' Day.
12 de octubre: no hay clases
16 days ago, Carly Byer
October 12 No School Columbus Day and Indigenous Peoples' Day 12 de octubre No hay clases Día de Cristóbal Colón y Día de los pueblos indígenas
Congratulations to Freshman Campus students of the month!
18 days ago, Carly Byer
Eight students holding certificates
Amy Smulski Druml, MCHS 2026 Distinguished Graduate, visited both buildings Tuesday to talk to students about her own journey as a nurse who is now vice president and chief nursing executive for Northwestern Medicine’s McHenry and Woodstock hospitals.
Druml, a 1994 MCHS graduate, encouraged students interested in healthcare careers to take MCHS’ certified nursing assistant program since the skills and experience translates nicely into most healthcare careers.
https://www.dist156.org/article/2970068/
19 days ago, Carly Byer
Amy Druml speaking
It's the first Warrior Weekly of the school year! This week they cover 120 construction, football making the playoffs and e-bikes.https://www.youtube.com/watch?v=FeqwimqVGUI
19 days ago, Carly Byer
Students holding football in front of drone shot of McCracken field
Someone riding an e-bike on the road
Construction signs that say Sidewalk Closed by City of McHenry sign

https://www.dist156.org/page/homecoming-2026
Our homecoming parade is THIS Sunday, October 4 at 12:30 p.m. from Veterans Park to Freshman Campus. Following the parade, we will Pack the Point at Miller Point with a rally and coronation. Distinguished Graduate Amy Druml will also be honored. McCracken gates will then open at 4:30 p.m. for a 5 p.m. Powder Puff game. Powder Puff tickets and more homecoming info can be found at the link above!

23 days ago, Carly Byer
Pack the Point Homecoming Parade and Coronation Sunday, October 4 Schedule and Music: 12-2 Rocco Z at the Point 12:30 Parade 1:15 Rally and Coronation 2-3 Lara Bel 2026 Distinguished Graduate Amy Smulskhi Druml Class of 1996
Happy National Principals Month to Mr. Eiserman and Mr. Sterner!
24 days ago, Carly Byer
Happy National Principals Month Photos of Greg Eiserman and Sean Stener
PreACT testing for grades 9-11 is this Wednesday, September 30. Seniors will not attend school. Please check your emails from principals for more details.
26 days ago, Carly Byer
PreACT September 30 Grades 9-11 No School for seniors. Bring charged chromebook calculator writing utensil
Pre ACT 30 de septiembre Grados 9-11 Grado 12: no hay clases. Traer: Chromebook CARGADO calculadora utensilio para escribir

https://tinyurl.com/chicago1971mchenryrotary
McHenry Area Rotary Club supports the dual credit program here at MCHS. They donate over $20,000 per year to eliminate dual credit costs .They're holding a club fundraiser 3 p.m. at Sideouts Sports Tavern THIS SUNDAY, September 27! Come see Chicago 1971 and Savory James Project with John Todd!

about 1 month ago, Carly Byer
Chicago 1971 the story the night songwriter Steve Goodman introduced John Prine to Krris Kristofferson As told by Chicago area musicians John Ballantyne and His band in music story, pictures and video. Opening Act Savory James Project with John Todd at 3 p.m. Chicago 1971 to follow 3 p.m. September 27 Sideouts Sports Tavern 4018 W. Roberts Rd. Island, Lake, IL 60042 Tickets $25 VIP Stage area 4 person table $400 (includes 2 drinks each) Sponsor package $500 includes VIP packaging media and stage banner recognition. Help support local youth and alleviate suffering worldwide. Thank you! Fundraiser for Rotary McHenry Area