In this biology worksheet, students identify and match various classes of species found today. Then they explain why biodiversity exists today on earth and define evolution. Students also describe who a paleontologist is and what they do.

In this science lesson, students classify pictures into categories of vertebrates or invertebrates. After a class discussion, students divide into groups, and are given plastic baggies that contain photographs of each. The groups must...

Birds adapted to almost every climate on the planet, from the Arctic to the rain forests. A presentation focused on birds covers their similarities and differences. It starts with their evolution from reptiles, their many physical...

Poor, misunderstood spiders! They are feared, disrespected, and detested by many people, yet they do so many positive things. A great addition to any insect unit, learn about some of the more common spiders, while hopefully dispelling...

A tube worm's outer covering is made of chitin, the same material that makes up the shells of lobsters and crabs. Scholars create tube worms and analyze and discuss the longevity of organisms living near cold seeps. They then discuss and...

To make the classic word search more challenging and academic, this animal-terms puzzle has scholars solving clues to determine the words they find. Fifteen clues give detailed definitions of biology terms such as carnivore, reptile,...

The World of Living Things is the focus of this biology presentation. Students view a presentation which introduces them to cells, parts of cells, microorganisms, and simple vs. complex animals. They see that they are classified as a...

Third graders work in small groups to investigate how to sort a variety of items into groups and subgroups. They work on a class chart based on the activity which show how the items are classified based on commonalities. Upon completion...

In this science worksheet, students look for the answers to the questions to fill in the crossword puzzle using the theme of pants or animals.

Students explore diverse forms of life by using modern biological classification systems to group animals that are related. Students then study basic scientific groupings like genus, species, mammals, fish, birds, amphibians, and...

In this animal kingdom worksheet, students compare and contrast the 10 different phyla including the description and approximate number of species found in each one. This worksheet is a graphic organizer.

When crocodiles close their mouths, you still see their teeth, but when alligators close their mouths, their teeth are hidden. Learn more about these reptiles and their many evolutionary cousins in a fact-filled presentation. It...

Students engage in a instructional activity in order to review some of the basic concepts of kingdoms and classification. They use research methods in order to find some of the information initially an use the notes to review for the...

Students conduct a series of exploration activity on how vaccines and antibodies work. In this biology lesson, students test how antigens and antibodies work in the body. They discuss the benefits of vaccines in promoting immune responses.

Learners investigate the cycle of life by observing tadpoles.  In this biology lesson, students utilize the Internet to read stories, observe pictures, and listen to sounds of frogs.  Learners create a poster board collage...

In this biology instructional activity, learners color and label the different parts of arthropods. They complete 63 short answer and fill in the blank questions on arthropods.

Students differentiate chemiluminescence from bioluminescence. For this biology lesson, students explain how fireflies and other animals emit light. They discuss the applications of engineered bioluminescence.

In this reptiles worksheet, students identify and label the different parts of reptiles. They complete 10 short answer questions after reading the information provided in the worksheet.

Students compare mitosis and meiosis with regard to chromosome number in parent cells versus daughter cells, types of cells produced, total number of cells produced, and the number of divisions. In groups, identify and differentiate the...

Excellent diagrams, labels and summaries make this resource be valuable to your students throughout the topic of circulation. All types of circulation vessels are explained, their structure and function is detailed, and the overall...

Human biology beginners label colorful diagrams of the neuron, the reflex pathway, and the brain. They list steps in the action potential process, and describe several different neurotransmitters. This worksheet guides learners through...

A slideshow that covers the all-important details related to basic human circulation. The reasoning for exchange of material methods is presented and then labeled diagrams of the main human transfer systems are shown, along with...

Students distinguish between invertebrate and vertebrate organisms while examining the zoological classes of a number of invertebrates. They illustrate a food web of these organisms and investigate the impact of humans on the oceanic...