I need help now btw i am in middle school

Media is added to the Timeline, and video projects are assembled within “sequences.” All editing takes place within sequences in the Timeline. When media is added to the Timeline for the first time, a new sequence is automatically created. Projects can have multiple sequences, which may be helpful in editing different segments of a lengthy project.

To create a new sequence, right-click an asset from the Project Window and select “New Sequence from Clip.” Sequences have settings based on the asset they’re created from. If you’re working with media files of varying types, such as a mix of low and high resolutions, always create a new sequence based on the highest resolution video clip to avoid cropping. After a sequence is created, click-and-drag additional assets into Timeline to assemble the video.

Explanation:

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A Sequance is a set of things next to each other in a set order; a series while a timeline is a graphical representation of a chronological sequance of events past or future.

to me i think class room sitting education is better. i do online school and i have not learned a think haha. when i sit in the classroom i just sit there and kind of pay attention but still i get so far ahead in the class when im doing online i have nothing else better to do but play video games and i sit in school and learn and have friends and just actually learn. when i'm doing online i sit here listing to music and get on and and look up the answers i guess that is my fault for being a cheater. but to be honest i think sitting in the classroom is better.