This product contains 4 different science charts. Included are: moon phases, sunrise and sunsets, weather monitoring and water temperatures (you will need to provide cups of warm water, cold water and ice water and thermometers). The first 3 are for monitoring over time (you may need to copy each page more than once for each child/class, depending on how long you will be recording). Simple and easy to use.
I recommend using a local news station to get your information from.