Curated OER
Friction and Machines
Fifth graders experimentally determine the relationship of friction to the functioning of machines. They demonstrate that rollers can decrease frictional force and increase speed and research to discover other ways that friction can be...
Curated OER
Plants Reproduce and Grow in Various Ways
Third graders take a walk around the outside of the school and examine their clothing to see if they picked up any seeds while on their walk. They discuss how seeds travel and how a new plant thus can form. They then observe root...
Curated OER
Plant Growth and Environment
Third graders bring to school various green plants and categorize them into plant leaves, stems, roots, and fruits. They answer the question, "How can you show there is starch in a plant?" and perform the iodine test and describe the...