Take photo using webcam

There's an application called cheese which can do this. IIRC it's installed by default. If not, you can install it manually using the software center or by typing sudo apt-get install cheese into a terminal window.

I would suggest you use Cheese. It is a webcam program for Ubuntu that supports almost any webcam.

You can install it by running the following command in a terminal (Ctrl+Alt+T):

sudo apt-get install cheese

After that, it will display in your installed programs menus.