Hi, I'm Carl Azuz, broadcasting from the CNN center in Atlantic, Georgia. We welcome all of our viewers around the world to the first February edition of CNN Student News.

We are leading things off today in Florida with the race for the Republican presidential nomination. Three states have primary or caucus events earlier last month, and a different candidate won each contest. So some experts were looking to see if the Florida primary would bring some clarity to the Republican field.

The goal of these primaries and caucuses is to win delegates. You need 1,144 then this year to be the Republican Party's nominee for president. There were 50 delegates up for grabs in Florida and yesterday's primary was winner-take-all, you win the primary, you get all 50 delegates. 

Representative Ron Paul and former Senator Rick Santorum moved on the campaign in other states because they didn't think they have much chance of winning Florida, that left former Massachusetts Governor Mitt Romney and former House Speaker Newt Gingrich .

As the results came in last night, CNN projected that Mitt Romney would win the Florida primary.

Cnnstudentnews.com is where you can always get the latest details on developing stories, like yesterday's Florida primary. The Full results came in after we produced the show. You can find them. They are gonna be in the Spotlight section on our homepage.

We are staying in Florida now to talk about a series of car crashes that happened along a major highway over the weekend. At least 12 cars and seven tracker trailers were involved in this accident. You can see some of what happened in the pictures we are showing you right here. 

The highway was covered in smoke from the nearby brush fire, that made it very difficult for drivers to see. Ten people were killed in the rax. More than 12 other people were taken to hospitals. 

Chad Miles spoke with CNN's Anderson Cooper about why the smoke was covering the highway. They also talked about the conditions that led to these crashes over the weekend. Have a listen.

There was a fire in the sw*, in the f*, only 60 acres, not that big. But in a regular fire, smoke goes up and keeps going up. But in Florida, it didn't keep going up. The reason why is because there was a layer of warm air up here, so as soon as the smoke tried to go up, it hit the layer of warm air and came back down. It's called inversion. 

The most infamous inversion ever was in northern Pennsylvania many many years age where people died because they suffered from the smoke, they just wouldn't live in the valley. *** But that's what happened, the smoke was trapped near the surface, it couldn't go away. People drove into the smoke and they were hitting car that already stopped in the roadway. 

And a lot of survivors, I mean, they were seeing the smoke and fog, they couldn't see, you know, they couldn't even see the hazards. This is not common, isn't it?

It is not. What happened here, this smoke and fog got into a bowl. This bowl is just south of *. I've driven through this bowl many times. i 75. It's the pr* right through here. Literally, it looks like you are driving through the xxx. You look to the left, you look to the right, it's completely flat, but all around you are hills. When you drive this, you look for stress, because you think you are in Africa. It looks crazy. Higher elevations here, higher elevations there, and right through there is gonna be a swampy area. And that air, that smoke settle right into that low area, into that bottom of that bowl. Ant that would cause the v* down to a literally zero.

And I guess one thing investigators have been looking into is could this be avoided, should there be warning or road closures.

Well, Anderson, there were road closures. The roads were closed for three hours and then the smoke was kind of clear, because the wind blew just a little bit. But then half an hour after they reopened the road, the crashes happened and ten people died. So, I guess you have to think the road probably should have stayed closed. There is not much you can do. Once you are in this smoke, you are in it. 

February 1st marks the beginning of Black History Month. It's a time to honor the accomplishments and contributions of African Americans. 

When Dr. Carter G. Woodson started this tradition in 1926, it was a week long celebration was expended into a month in 1976 by president Jero Ford. Throughout our coverage black history month we are going to focus on some of the people the places the moment the have been significant in african american history. we are starting with a lunch counter, an event that happened fifty two years ago two day. A 24 black college student walked into a woowoo in Greenhouse North Carolina. They sat down at the white only counter to order lunch. They saving their seats after they were refused service and lanch a peaceful protect for civil rights. 

Woowoo lunch counter in greenboro was redegregated later on that year.

Some other events on February first in 1790 the US Suprim court met for the first time.  the first court had six justices, not nine like the US has now. In 1865 President AL signed the 13th amendment to US constitution which will abolish slavery the amendment was ratified by the states later on that year. and in 2003 the space shuttle Columbia broke apart while re-entering the earth atmosphere. All seven crew members were killed.