Curated OER
Solubility and Chemical Changes in Groundwater
Students test pH of water before and after it travels through different substrates (igneous pebbles and limestone) to detemine how soluble materials can affect groundwater. They answer questions such as: What happended to the pH of the...
Curated OER
Blood, I Presume?
Students explain the value of blood in trials. In this DNA lesson students work together to collect and share information and ideas that they come up with after learning how to distinguish blood from other stains.
Curated OER
Eye Safety
Tenth graders become aware of the need for eye safety in the classroom through three mini labs.
Curated OER
Determination of the percentage of Acetic Acid in Vinegar
Students determine the concentration of acetic acid when the concentration of the base with which is titrated is known. They investigate how to weigh a sample using the balance, measure volumes using graduated cylinder, explore the...
Curated OER
Mystery of the Eleven Unknown Substances
Fourth graders identify eleven white substances that are commonly found in the household. They, in pairs, perform experiments on a variety of substances, and must identify them based on the reactions they observe.