There are numerous third-grade science games that can help kids learn facts and understand how science works. These science games can be played as a board game, done as a class activity or played online.
The Science Explosion board game, developed by scientists and educators, helps kids learn lots of neat facts about science. In this game, players race to be the first to explode the volcano. A simple science game for the classroom involves grouping similar objects with one object that doesn't belong; kids compete to guess the correct answer. The Funbrain website has a colors game that teaches kids the science of mixing colors, or a weather dog game for learning about the weather.