Curated OER
Activity #17 Liquid Density and Temperature
Students comprehend that hot water rises up through cold water but cold water does not rixe in hot water. They comprehend that water at temperatures above 4oC decreases in density with increases in temperature. Students answer lab...
Curated OER
It Looks Like Champagne
Students determine some practical implications of the discovery of liquid carbon dioxide in deep-ocean ecosystems. They interpret phase diagrams and explain the meaning of "critical point" and "triple point."
Curated OER
Pigment Plucking
Students examine pigments found in different fruits and vegetables and practice the processes for extracting the pigments. Pigments are used to create artwork and a class PowerPoint presentation is made on the different types of plant...
Curated OER
What Changes Occur When Water Freezes?
Students investigate the changes that occur at the molecular level when a liquid becomes a solid. They freeze water in baby jars and observe the changes that occur in the process.
Curated OER
Activity #5 Soils-Permeability and Impurity Removal
Middle schoolers predict which types of soils would work best for keeping contaminants contained. They comprehend that in the past, landfills have been one major source of groundwater contamination. Pupils comprehend that placing and...
Curated OER
Photosynthesis and Respiration
Eighth graders differentiate photosynthesis and respiration. In this biology lesson, 8th graders draw a diagram explaining these two processes. They answer a quiz after the lesson.