Curated OER
Tree Cookies
You will find a viewer-friendly PowerPoint on the growth rings and other features found in a cross-section of a tree trunk, affectionately known as a "tree cookie." A few worksheets are provided for practice counting tree rings and a...
Curated OER
Simple Machines IV - Levers
The principles of levers and simple machines are presented here. An easy-to-make lever is constructed by each group of scientists, and they use it to explore how this simple machine makes heavy things so much easier to lift and move. A...
Curated OER
Ecologist's Activities
Students construct a model of a biome. In this ecology lesson, students use a shoebox, magazine pictures, paper, and string to create a model biome. Students glue the photos inside the shoe box and draw other objects, such as plants,...
Curated OER
Endangered Species: Not Only Animals
Students research endangered animals and plants. In this biology instructional activity, students are read Will We Miss Them? Endangered Species by Alexandra Wright before they begin searching for information to complete an...
Curated OER
Cell Study
Learners (females) are introduced to the cell. They discuss what a cell is, and students define what a cell is. Learners comprehend that all living things are made up of cells. They comprehend that life is defined as something that...