Hey Ray: Making a model of the atmosphere
You may have heard that the atmosphere is a fluid, we'll show you how to make a mini model of the atmosphere!
Watch CBS News
You may have heard that the atmosphere is a fluid, we'll show you how to make a mini model of the atmosphere!
Certain things just seem impossible but with science? They become possible.
I often get asked why the temperatures we report are different from what you see on your home thermometer.
I accidentally mixed hard-boiled eggs and raw eggs. Now, how can I tell the difference?
Our atmosphere, it's kind of just a big sandwich!
How big hail can get is all about wind!
In our solar system, we notice things because of the science of shine, and for this shine discussion, we are going to focus on the only star in our solar system: the sun!
One viewer asks: Why is it on very windy days the water level in the toilet bowl is low?
Our eyes and brain can sometimes play tricks on us!
You may be familiar with a social media trick that makes a screwdriver levitate...does it work?
When you think of magnetic money, you think of coins, but it's your paper money, too!
It's a question I get a lot, so let's try to answer it!
Did you know that Pi can be used to make a prediction?
Let's do some "survival science" like how to find your direction!
Even though certain metals may not be magnetic, they can still interact with magnets!
Heavy winds and windstorms have been in the headlines a lot lately, which has plenty of Pittsburghers asking, "Is it windier today than it ever has been in Pittsburgh?" Ray Petelin explains!
Meteorologist Ray Petelin has a weird experiment today where he shows us how to illuminate fluorescent light bulbs without connecting them to a light fixture!
Science can often surprise you! Meteorologist Ray Petelin has a cool inertia experiment where the result may be the opposite of what you think!
It's common to see icicles hanging from roofs or awnings, but can they form sideways? The Barton Family saw just that, and Ray Petelin explains how it may have happened!
When rivers, lakes, and ponds freeze over, it's natural to want to go play on them, but checking them for safety is important. Ray Petelin explains what you need to do to make sure you don't fall through.
When we get large snowfalls, the same question gets asked - why is snow white but when it melts, it's clear? Ray Petelin answers that in a new Hey Ray!
KDKA meteorologist Ray Petelin uses science to debunk some popular conspiracy theories.
Places, people, and things have a variety of reasons for why they are named the way they are, but have you ever thought about why the Arctic and Antarctic have their names? Ray Petelin has and he explains it in a new Hey Ray!
Whenever snow falls in Pittsburgh, you hear the same refrain: milk, bread, and toilet paper, but do we really need to have those in our home? Ray Petelin makes sure you know how to prepare when snow is coming!
While we may dream of a White Christmas in the 412, the weather is often much more interesting than that. Ray Petelin explains in a new Hey Ray!
Rickard Rakell, Anthony Mantha and Egor Chinakov scored first-period goals as the Penguins raced past Detroit 5-1.
President Trump is planning to deliver a prime-time address Wednesday night to "provide an important update on Iran," the White House said, as the president faces critical decisions in the monthlong war.
A 17-year-old driver was intoxicated when his vehicle rear-ended a golf cart, killing an off-duty police officer last year, authorities said.
The annual KDKA Fish Fry Guide is back for Lent! Check our listings for a 2026 fish fry near you in Pittsburgh.
An up-close video shows another eaglet hatching in the nest at U.S. Steel's Irvin Plant in West Mifflin.
President Trump is planning to deliver a prime-time address Wednesday night to "provide an important update on Iran," the White House said, as the president faces critical decisions in the monthlong war.
A federal judge has temporarily blocked the Trump administration's construction of a 90,000-square-foot ballroom to replace the White House's East Wing,
Congress has yet to approve funding for the Department of Homeland Security, which has been shut down for over 40 days.
More than 7 million student loan borrowers who've been enrolled in a Biden-era repayment plan will receive notices with instructions to seek a new plan to repay their debt.
Two Republican state senators have introduced a proposal to hold people accountable for evading tolls on the Pennsylvania Turnpike.
Fat Head's Saloon on Pittsburgh's South Side is closing next month after more than 30 years in business.
Studies show nearly 25% of Pennsylvanians can't pay their power bills at least once a year.
After a rat raised questions about health and safety at The Urban Tap, the owner says the South Side business is ready to gain back the public's trust.
Looking to get free shipping when you make an online purchase, but your order doesn't qualify? Here's how you can change that!
Pennsylvania farmers say economic factors like diesel fuel and fertilizer costs are pushing them to the edge.
The “Fried Up 4” has been revealed. Now, it’s up to you to pick the winners!
Even though the days are warming up, it’s not quite prime planting season yet! No worries, though. Our garden guru, Doug Oster, is here to show which flowers you can plant right now that’ll actually thrive in this early-spring weather.
Easter’s almost here, and the pressure to bring the perfect dish is on. Chef Crystal Baldwin is here to show us a one-pan casserole that’s big on wow and low on effort.
Antiques appraiser Dr. Lori is examining more of your family treasures and heirlooms.
Meg St-Esprit from Kidsburgh is showing us how to dye Easter eggs using fruits and vegetables with the help of her daughter, Naarah.
A Sewickley Hills man said he's left without a usable driveway because PennDOT cannot get it right.
Steven Eason, 15, was shot and killed while trying to break up a fight at the Haunted Hills Hayride in North Versailles in 2021. No arrest has been made.
People in the Pittsburgh area formed "Families for Justice," a support group for parents who lost children to gun violence.
An inspection sheds light on why dust is blanketing a neighborhood in Westmoreland County.
The O'Connor administration will begin taking a scalpel to Pittsburgh's finances as it tries to close a $30 million to $40 million budget hole.
UPMC and AHN say they've been collaborating about getting ready for an event of this magnitude.
When doctors found out Ainsley Flynn had viral myocarditis, they leaped into action to save her. Now, Flynn is giving back.
UPMC Hillman Cancer Center is exploring everything radiation treatment can treat, and the success has been life-changing for people.
A Pittsburgh-area man is not just giving people living with ALS a voice, he's giving them their own voice.
A cancer once rare in young people has become the number one cause of cancer-related deaths for Americans under age 50.
Rickard Rakell, Anthony Mantha and Egor Chinakov scored first-period goals as the Penguins raced past Detroit 5-1.
Western Pennsylvania has historically been a hotbed for producing talent that succeeds in the NFL.
The new display panels will replace the original sidewalk bricks, which have required repeated repairs since the park opened in 2001.
Tiger Woods was arrested last week in Florida and charged with driving under the influence after a vehicle crash.
Chase Burns allowed one hit in five innings for his first major league win, leading the Cincinnati Reds to a 2-0 victory over the Pittsburgh Pirates.
Fat Head's Saloon on Pittsburgh's South Side is closing next month after more than 30 years in business.
Pittsburgh's newest music venue released a lineup of its first concerts on Monday, giving a taste of what's to come at Citizens Live at the Wylie.
Forbes' latest ranking of the world's richest people has been released, and the list features billionaires with ties to Pittsburgh.
A fire chief says a fire at an Ohio hog farm complex has killed about 6,000 pigs and unleashed a large plume of smoke that could be seen for miles.
Lawmakers in Harrisburg are looking at bills to tackle dynamic pricing.
The first stop on Boone's new tour will be at PPG Paints Arena on July 7.
The price hike raises the cost of the standard plan with ads by $1 per month and the cost of the standard and premium plans by $2.
Newborns at a Pittsburgh-area hospital dressed up to celebrate the 20th anniversary of "Hannah Montana."
11 shows will be coming to Pittsburgh, including six winners of the Best Musical at the Tony Awards.
CBS News announced Friday that CBS News Radio will be shutting down this spring after nearly 100 years of broadcasting, citing "challenging economic realities."
KDKA-TV's Bob Pompeani and 93.7 The Fan's Chris Mueller discuss the sports topics of the day.
The Pittsburgh City Council unanimously passed a bill that allows 18 law enforcement agencies to assist the Pittsburgh Bureau of Police during the draft.
Stay on top of the weather in the Pittsburgh area with First Alert Meteorologist Ray Petelin's forecast.
An electric vehicle fire at a charging station at McCandless Crossing on Tuesday.
President Trump signed an executive order Tuesday requiring states to impose stricter mail-in voting rules and directing his administration to create a list of confirmed U.S. citizens who are eligible to vote in each state.
Mike Tomlin stepped down as head coach of the Pittsburgh Steelers after 19 seasons with the team.
Pitt's regular season has ended with an 8-4 record.
Pitt's five-game winning streak came to an end with a 37-15 loss to Notre Dame.
Mason Heintschel set a new Pitt freshman single-game passing record in the Pitt win at Acrisure Stadium.
The 44th annual KDKA-TV Turkey Fund will help our neighbors in need have a nice meal for Thanksgiving.
