Curated OER
Using Venn Diagrams
In this Venn Diagrams worksheet, students complete and draw 10 different Venn Diagrams to match each problem as described. First, they determine the number of kids who scored above half on math or science. Then, students compare the...
Curated OER
ISOLATION OF DNA FROM ONION
Learners perform a laboratory exercise designed to show how DNA can easily be extracted from onion cells. They conduct an optional test for the presence of DNA using standard lab equipment.
Curated OER
Determination of Phosphates
Learners engage in a laboratory lesson in order to increase understanding of the impact of phosphates at the chemical and ecological levels. The lab exercise is completed with the goal of getting them to predict the outcomes and future...
Curated OER
Water Quality and Nitrates & Phosphates
Students examine the effects of nitrates and phosphates on the dissolved oxygen levels in different water sources. In this series of 3 lessons, they consider the reasons for nitrate and phosphate level increases and their effects on...