Curated OER
Chemistry Chapters 8 & 9
In this chemistry worksheet, students explain the difference between a covalent bond and an ionic bond. Then they write the Lewis symbol for the atoms and ions presented, such as carbon and sulfur. Then they predict whether the molecules...
Curated OER
Heat Transfer & Phase Changes
For this heat transfer and phase change worksheet, students experiment with ice, salt, and milk to show the relationship between the temperature of a solution and its phase. Students turn milk from a liquid to a solid and graph the...
Curated OER
Intro to Biology Chapters 1 & 2 Practice Test
Don't be fooled by the title - this biology quiz could serve as an AP biology or college-level biology quiz. Some of the molecules represented may be difficult to identify without seeing the textbook from which this is based. It could...