Good practices for a talk
Keep your audience in mind! They are primarily fellow undergraduate physics majors who will not know the topic at your level. Your talk should aim to give your audience an intuitive feeling for your ideas and to make them excited to explore your work (make sure to not only focus on presenting technical details!).
Organize your talk around this specific goal. For that, start by highlighting the problem and research question you are exploring and provide the motivation for your work. Then, explain your methodology and results, using data visualizations that help to understand the problem and results. Avoid having too much text on the slides; instead, write sentences that you can expand further in your talk.
Practice your talk before the conference. Make sure that your talk is not longer than the allocated time (10 min + 2 min for questions).
Other resources:
https://www.cis.upenn.edu/~sweirich/talks/plmw15-giving-a-talk.pdf
https://www.science.org/content/article/three-tips-giving-great-research-talk
