Curated OER
Mystery Eggs
Students investigate the properties of plastic eggs filled with solids, liquids, and gases and use these observations to hypothesize whether a chicken egg is hard-boiled or raw.
Curated OER
Analyzing a Science Fiction Movie
Fourth graders watch the movie "Contact" and write a review. They discuss in their review how scientists deal with technological problems, the movie's connections to the nature of science and how technology affects science. They share...
Quia
Quia: Capitalization of Proper Nouns and Adjectives
A nice online quiz on polyatomic ions. The "joke" answers are a bit distracting, but the page is useful.