answer:
hello there!!
since it is a group project you can make one person responsible for one/two slide, which would bring the total slides to seven-eight if you choose to include the title slide with a extra video/ photo slide and a sources slide ( if your teacher makes you do that slide )
so the layout should maybe look a little like this
♡︎ title slide ( how the sun and moon system affects earth )
- day ( earth's sun system )
♡︎ night ( earth's moon system )
- seasons ( how it affects the four seasons )
♡︎ moon phases ( the moon phases during the month(s) )
- extra video/photo ( for more information about the sun and moon system )
♡︎ source ( what we used for research )
tip = always make sure that there is at least one/ two photos on each slide because one it looks better, two it helps for a better understanding and three if fills up space that wasnt taken up by written information
if you are the "group leader" then you can choose who gets which slide, help when there is needed. since you are working with people that seem to be a little lazy a little idea for the teacher to know who did what work, you can always put the name of the person doing each slide ( or if you can presenting to the class, make them talk/ present when their slide is up ) or even make sure that every slide is cleaning done before turning it in!
( here is a example of a project i once did but im showing them to you for a little idea of a title slide and a photo slide )
i hope this helps you! have a wonderful rest of you day :)