Curated OER
Little Bloomers: Gardening With Trees
Young scholars identify the parts of tree flowers. They examine the role they have in pollination. They discuss trees that do not flower as well.
Curated OER
Investigate Factors Affecting Nitrates in Groundwater
Students participate in an experiment in which they investigate the factors affecting the levels of nitrates in groundwater. Using examples, they explain the nitrogen cycle and identify the sources of chemical nitrogen fertilizers. ...
Curated OER
Energy for Animals
First graders discover how animals depend on other animals for energy. They identify sources of energy in their daily life and describes the actions of nightime and daytime animals. They list sources of food and shelter for specific...