Experiment ideas I could win a lot of money from school

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space

If an area has high air pressure and low humidity, what type of weather will it most likely have? plz !

The arrangement of particles is most ordered in a sample of