Under the objective lens there is a stage to put the specimen ( the thing you want to look at ).
The thing that a bulb goes into is called a socket. It is the part that connects the bulb to the electrical supply in lighting fixtures.
the name of a boat that goes underwater is called a SUBMARINE.
That thing that goes under the suit is typically a dress shirt and an undershirt. The dress shirt is worn as the main shirt and the undershirt is worn underneath for added comfort and to absorb sweat.
I think its called a sheet
The thing that the water goes into is called the drain. And the thing you put in it to stop is called a plug.
A cat collar.
bit
its called gamgee
The cartridge is called a grenades, usually 40mm or 32mm.
Air Filter housing.
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A chemical reaction occur.