mishaps, incidents (tai nạn)
accidents
burst, blow up (nổ)
explode
defend, safeguard (bảo vệ)
protect
when a liquid gets to hot (sôi)
boil
What is the student doing? What might happen?
He isn't wearing safety glasses. Chemicals might get in his eyes.
What is she doing? What might happen?
She is heating a liquid in a closed container. It might produce gas and explode.
What are they doing? What might happen?
They are both wearing jewellery and their hair is messy. This might cause an accident
What are they doing? What might happen?
She isn't using tongs to touch the test tube. She might burn herself
