Curated OER
Neutralization
Ninth graders study pH, acids, bases, and neutralization. They discuss and apply principles of neutralization to everyday situations (bee stings, indigestion remedies, soil acidity, etc.). They carry out several experiments using acids...
Curated OER
Precession
Students explain how Hipparchus, around 130 BC, used a shift in the predicted location of a lunar eclipse to detect a slight shift in the path of the Sun around the sky. They examine the elliptical orbit in which the Earth travels around...
Curated OER
How Far Does Light Go?
Students engage in research from the internet to search for facts concerning the scientific properties of light. The information is collected in order to gather evidence for a classroom debate. The debate includes a question and answer...
Curated OER
Safety in the Biology laboratory
Students review safety in the biology laboratory. They summarize the rules and safety procedures by completing several activities such as practice questions, taking notes andbecoming familiar with the location of safety equipment.
Curated OER
How Science Works: Natural Selection
Students are introduced to the topic of adaptation and discuss how various animals adapt to their environment. In groups, they participate in a simulation in which they are selected based on criteria. They discuss the results and relate...