Answer:
1.The equipment is broken by someone.
2.Firstly the liguid must be heated.
3.Safety glasses must be worn in laboratory.
4.Science competition is won by a very young student.
5.A brilliant scientist is Dr liu .( this 5 no ans might be wrong)
To find information in a magazine, use THE READERS' GUIDE TO PERIODICAL LITERATURE.
The Readers' Guide to Periodical Literature is a reference guide wherein information on recently published articles in magazines and journals are found.
I would have to say formal, mainly because I looked it up on google.