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)
Hugging her grandmother =touch is the only one I'm pretty sure
Looking up the word in the dictionary
The second alarm circuit hadn't been connected up at the time.
