Tense tones are usually used.
Class versus individual characteristics: glass and tool marks versus fingerprints, hair and blood is an example of it. The items listed are things that are going to be mentioned in the chapter, which I think will present information that can help us understand criminal investigation better. We are going to learn how much Forensic files and DNA evidences are important in some criminal cases, as well as how all of the above data is collected in a crime scene.
Venus is much hotter than earth, it is actually the hottest planet in the solar system.
Go to the teacher, and have a little nice friendly talk. Point out that you just joined the class, so of course you don't have the current assignment ready, simply because it was already in progress when you arrived. Ask her for some reading that you can start doing now, to start learning the subject that everyone else was working on before you arrived.
