Wolfram Alpha is like a very smart and special calculator that you can ask questions and it will help you find the answers. It is an internet tool that helps you explore and discover things by using math and science. You can type any question, and it will try to give you the answer with its very powerful computer brain. For example, if you want to know how many miles is the distance between New York and Los Angeles, it will tell you that it's about 2,800 miles. Or if you want to know how many calories are there in a banana, it will tell you that it's around 105 calories. Basically, you can ask it anything about math, science, history, geography, or anything you're curious about, and it will try to help you find the answer.