## Step 2 - Reading

Reading
Watch this video. Decide if the sentences are true or false.

Read the text and choose the correct words in the exercise.

High fashion detective work. By Catriona Jenner Harvey.
Lipstick has many uses: it makes you look chic, adds color to an outfit, and — scientists have discovered — helps solve crimes.
In the same way as fingerprints are extracted from crime scenes and analyzed to provide clues about the perpetrator, experts are now discovering that they can do the same with lipstick.
Although attempts have already been made to extract lipstick from surfaces, they have involved 'X-ray refraction' or 'Raman spectroscopy' and have been hugely time consuming, confusing, and costly.
But now experts are using 'gas chromatography' to help the process, according to Medical Daily. Apparently this involves adding an organic solvent to extract the oils and waxes from the lipstick, and then adding a basic organic solvent to remove any of the remaining residue. While the scientists at Western Illinois University, who are researching the matter, are currently just lifting samples from paper, they hope to extend this to all sorts of materials and surfaces from a crime scene in the future.
So there's a lesson to be learned here, one and all: Don't wear lipstick when you're off to commit a massive crime because chances are you'll get a smudge of it somewhere, and the feds will be right on your tail.
Feels like there's a movie in there somewhere...
Source: http://www.seventeen.com

- Watch and listen to the video again. Complete the transcript.

It’s a common TV crime show trope: no suspects, little .....[1]..... until an investigator finds a lipstick mark.
The sample is sent away to the lab and boom! the suspect is in .....[2]...... .
In reality, forensic analysis is not that fast or straightforward but scientists are making progress. Brian Bellot and his team at Western Illinois University have developed a new to lift lipstick samples and found the best way to .....[3]..... them. They’re presenting their research at a meeting of the American Chemical Society in San Diego. .....[4]..... and analyzing lipstick samples can often require costly equipment and specialized training. “My method can actually be .....[5]..... by a bachelor’s level or even a master’s level student or scientist.
They just have to cut off the sample, simple extraction procedure, something they would learn in sophomore .....[6]..... chemistry." They simply add an organic solvent to get rid of the oils and waxes. Then add a different solvent to lift the remaining residue. The team then .....[7]..... gas chromatography to find molecules unique to forty .....[8]..... brands of lipsticks.
"Each lipstick has at least two or three components which are different from the rest.” Bellet says forensic labs can
adopt this new .....[9]..... as is, with no new equipment or training needed.
He also says his lab is working on expanding the library of samples so crime labs everywhere can use his new .....[10]..... chemistry to pin perps.

1 = ..... 2 = ..... 3 = ..... 4 = ..... 5 = .....
6 = ..... 7 = ..... 8 = ..... 9 = ..... 10 = .....
Now compare the video and the text. Is there any extra or different information?