Question in class

My first question came from my physics class, which was asking about the differences between velocity and speed. While finding info in regards to this question, some more question were created such as, what does the word acceleration mean, as the definition to velocity had acceleration in it. Also, I thought of the different units in which speed can be measured in. While conducting my searches, I attempted to implement different approaches to finding results. I tried changing words around, I used the least amount of words as I could to be more specific, and I also different online definitions to get a clear and definitive answer. In the end, I found that my original question is much simpler than the complex one that came out of this research. I could definitely continue further with this process as the answers that I found were sometimes confusing, and thus making me curious as to find what the wrong answers meant. Some other questions to help my research would be, does velocity and speed change in higher elevations, or is there any constant value for speed of velocity in any one circumstance. Specific questions like this would help in my exploration.