Weather & Climate - When doing a lesson over the different factors that contribute to weather, this can be a useful activity to identify the weather instruments that are utilized to measure various factors including wind speed and air pressure.
I love easy experiments that make science cool! This rainbow colored celery science experiment is simple to set up and really makes transpiration come alive for kids. // Experiment by Coffee Cups and Crayons
Interactive weather chart: This would be another cute way for students to be aware of the weather outside. It is pretty basic and simple so it would just be an extra component to help students understand different weather patterns.