Curated OER
Factors Affecting Reaction Rate
Students study the collision theory and explain how the rate of a chemical reaction is influenced by the reaction conditions. In this reactions lesson students divide into groups, discuss the factors that influence reaction rate and...
Curated OER
Designer Genes
Learners view a video on DNA. They discuss mitosis, meiosis and fertilization. They use strips of paper to simulate fertilization and analyze the genotype and phenotype of the combined chromosomes.
Curated OER
Aqueous Solutions
In this aqueous solutions learning exercise, students will explore the characteristics of solutions, including the ability of different compounds to dissolve in the solutions. This learning exercise has 10 true or false statements and 8...
Curated OER
Liquids and Solids
Young scholars describe the properties of solids and liquids, and explain how a semiconductor works. In this atom lesson students demonstrate the bonding properties of carbon and silicon.
Curated OER
Polymers and Crystals
Students experiment with crystals and polymers and examine their roles in food science.
Curated OER
Earth and Beyond
In this earth and beyond worksheet, students answer short answer questions about the atmosphere, the chemical compounds in Earth's atmosphere. Students visit different websites to conduct research of the discoveries of the scientist who...
Curated OER
Lives of Stars
Young scholars explain in their own words how stars are formed. In this space science lesson, students summarize the life cycle of stars. They draw diagrams and label the step of the cycle they represent.