Curated OER
Dissolved Oxygen
Students discuss the relationships between dissolved oxygen in a stream, stream temperature, organic waste loads, and stream conditions by studying and using a model of dissolved oxygen in the stream.
Curated OER
The Needs of Living Things
Pupils investigate the global food chain by creating a visual chart. In this ecology lesson, students discover the elements needed for life to sustain itself, contrasting living things vs. non living things. Pupils fill in a printed...
Curated OER
Dissolved Oxygen Lesson
Pupils investigate what dissolved oxygen is and why it is important to aquatic life and what factors influence levels of dissolved oxygen in a lake. They study how to use MS Excel to make charts to show trends and correlations.
Curated OER
From Polliwog to Frog
Students examine how frogs change. In this life cycle lesson, students create a model to show how a frog changes throughout its life. Students will show the process of frog metamorphosis, from polliwog to adult frog.