Chicago Botanic Garden
Impacts of Climate on Forest Succession
Part two in a series of four explores the effects of climate on succession or the changing of plant species in a forest. Groups review how to identify trees and then spend a day in the field collecting extensive data on trees to...
Curated OER
Seeds and Trees Lesson Plan
Students investigate various tree leaves and use a dichotomous key to classify the leaves. In this leaf classification lesson, students study various types of leaves and their Genus. Students record observations for each Genus.
Curated OER
Reptile Identification Exercise
Students are shown how to use the Digital Atlas of Idaho. They use a dichotomous key to identify species of Idaho reptiles. Students describe some basic life characteristics of reptiles. They use th visual key to identify the species...
Curated OER
The Food Pyramid
Fourth graders plan a variety of nutritional meals using the USDA's Food Guide Pyramid as a reference and analyze food labels to plan their meals. They examine and discuss the Food Pyramid, and create dichotomous keys separating food...
Curated OER
Everybody Needs a Rock
Students, after making quantitative and qualitative observations of their rocks, construct a Venn diagram or dichotomous key to classify their rocks.
Curated OER
Taxonomic Keys
Seventh graders create their own dichotomous key. In this biology lesson, 7th graders classify animals based on their observable features. They explain how to use their dichotomous key.
Cornell University
Classification
Explore the scientific method of classification. An interactive activity asks learners to create a classification system for a group of objects and develop a flow chart to communicate their systems. In addition, individuals use a...
Curated OER
Bird Ecology Unit
Tenth graders conduct various activities utilizing the scientific method to formulate a hypothesis, conduct a controlled experiment, collect and analyze the data and communicate their results through a poster. They also identify...
Curated OER
Create a Dichotomous Key of Idaho Reptiles
Students use the reptile section of the Digital Atlas of Idaho. They make a dichotomous key and decide on what defining characteristics they can use to distinguish between species. They hone their observation skills and recognize...
Curated OER
The Key To Classifying Animals
Explorers of the environment construct a dichotomous key for a variety of organisms and design a key to classify Galapagos animals based on descriptions and images. The lesson includes a link to an animal gallery and the worksheet for...
Michigan Sea Grant
Fish Identification
Using a dichotomous key, pupils identify characteristics of fish who live in the Great Lakes and explain how these features help them survive. In small groups, class members discover what features scientists consider important and...
Curated OER
Insect Pitfall Traps
Young scholars ask testable questions, use the inquiry cycle to investigate, gather data and interpret the results, study the diversity of insects and other smallorganisms which live around the school; they can make an inventory...
Kenan Fellows
Determining Stream Health by the Diversity and Types of Benthic Organisms
How diverse are the benthic organisms found in local streams? Using the information learned in previous lessons on identification of macroinvertebrates and on calculating stream index values, groups determine the health of local streams....
Curated OER
Using a Dichotomous Key for Invertebrate Phyla
Students use a key to determine the phyla of invertebrates. They are broken into groups and each group gets a stack of pictures and uses the key to determine which phyla the animal belongs to. There are also individual questions for...
Curated OER
Classify Machines that Fly!
Eighth graders explore flight and the dichotomous key. In this flight lesson plan, 8th graders gain understanding of the dichotomous key and create one of their own. Students then use their dichotomous key to classify types of aircraft.
Curated OER
Keys and Webs
Students explore and classify organisms found in a Rocky Mountain Ecosystem. Through discussions, students examine the effects upon an ecosystem if a component was removed or a new component was added. As a class, they survey reasons...
Curated OER
Bean Sort
High schoolers define and discuss dichotomous keys. They create a dichotomous key to identify a bag of mixed beans, and assign their group of beans a genus and species name.
Curated OER
All About Arthropods
Use a dichotomous key to classify these squirmy bugs. A paragraph provides fifth graders with some background knowledge on the animal kingdom, and explains how to use a branching key for classification. They then determine which bugs...
ARKive
Species Discovery
How many of your students know that even today new species are being found all over the globe? Introduce them to the amazing diversity our planet houses with a creative activity about animal variation and classification. They'll use a...
Cornell University
The Making of Macromolecules
Compare and contrast macromolecules made from the same elements. Young scholars learn how the structure of a molecule has as much influence on a compound as the elements in the molecule. They experiment with molecular model kits to...
Curated OER
Exploration of "Pillbugs"
Fifth graders define vocabulary terms, identify the characteristics of a pillbug, and create a dichotomous key. Then they examine the pillbugs and make observations and record these observations. Finally, 5th graders observe specific...
ARKive
Primate Evolution- Family Ties
If humans evolved from apes, why are there still apes? Using captivating pictures and videos of our primate cousins, young biologists examine evidence to dispel one of the most common misconceptions about human evolution. Depending on...
Curated OER
A Tree-mendous Project
Seventh graders use their observation and measurement skills to identify trees. Using a tree diagram, they label the parts and discuss the functions of the tree. They practice using a dichotomous key to identify trees as well.
Curated OER
Dichotomous Key: Minerals
In this earth science worksheet, students identify various minerals as described in the fifteen questions. They identify the luster and hardness of a mineral. Then, students identify what color the mineral is and whether it has streaks...