Advice for making a good demo video
Make sure that all of your supplies for your video are nearby and easy to get to, plus make sure that the dry ice you want to use can fit inside your soda bottle BEFOREHAND!
There should be demonstrations of each step and a close up of the step being done. The spoken words should be loud, clear, and engaging, they should match what is happening in the video, and you should talk to the audience and keep their attention. Don't say complicated phrases that people might not know but if you do, explain what it is. Share the information as if the audience doesn't know anything about the subject.
A good advice for making a good demo video is keeping it simple. People should be able to understand what you're trying to teach them and somehow relate to that experiment.
Use common vocabulary and explain what each component or substance means. Make it exciting! Don't let it bore the audience!
And of course, it should have a lot of detail, so other people can try it.
:)
All the science concepts must be clearly demonstrated so that a viewer with little to no background in chemistry can easily grasp a concept. Furthermore, the video should not be crowded with weird effects since it makes the movie seem less professional, and can upstage the scientific content, which is the real point of the video. The steps should also be shown one by one so that the experiment can be easily reproduced.
The demonstration should be clear and detailed enough for someone to recreate it without any trouble. I recommend running through the experiment before hand to correct any unexpected errors that may occur. Also, it’s a good idea to rehearse any dialogue so it can be heard clearly during the video.
Make sure the video quality when you publish your video is high so that the directions and the details that you perform in your experiment will be clear. Also be sure to have a comprehensive explanation on the chemistry going on in your video either through text or images. Lastly, have clear voice overs or do just use text. Scratchy voices playing during the video can be quite annoying.
I would seriously consider doing voice-overs. When audio quality is poor the audience's attention span will decrease because they don't understand the content of the video. I would also make sure that your captions match up with your video because nothing looks more unprofessional than a video with a mouth moving and the wrong words. Be sure to use your camera to its' full potential, use zoom-in and zoom-out when appropriate, it makes for a more interesting video. Plan out your video so that it looks organized and makes sense. Lastly, I would make sure that you check your video and captions for factual or grammatical errors to make your demo professional.