Alice is a variation of the name Adelaide, which means noble kind.
Canvas is a kind of heavy, plain woven fabric, usually made from cotton or linen. It is used to make sails, tents and other items that need to be made from strong fabric.
Artists like to stretch some canvas over a frame and use it to paint on. A piece of canvas prepared like this is also called a canvas, like the one in the picture.
Caracas is the capital of Venezuela. It has a population of around 6.5 million.
Dallas is a city in the state of Texas in the United States of America. It has a population of around 6.3 million.
Gas is a state that substances can be in. Other states substances can be in are liquid and solid. The air around you is a mix of gases, and when you boil water the bubbles are the water itself turning from a liquid into a gas. Helium balloons are filled with another gas that most people are familiar with - helium is lighter than air so helium balloons rise up.