Learners examine how melting, vaporization, and sublimation require energy input while freezing and condensation release energy.

In this screencast, learners read how microbes in such items as yogurt, bread, insulin, and insect sprays improve our lives.

Learners examine the periodic table to identify metallic elements that have either fixed or variable oxidation states.

Students examine atomic structure and the octet rule.

Students identify the various regions of the human body through video.

In this screencast, learners read about the parts of the eye.

Chytrids, as members of this group are known, are found everywhere. In this animated learning object, students examine the role of chytrids and their impact on the environment.

In this animated object, learners read an introduction to protein structure and function.

Explore how a goldfinch interacts with its environment and how it's affected by environmental changes.

Music Credit:

Title: Good Starts

Artist: Jingle Punks

Genre: Cinematic

Mood: Happy

Download: https://www.youtube.com/audiolibrary/...

The definition of an isotope is illustrated using the three isotopes of carbon. The three isotopes of hydrogen are discussed as exceptions.

In this screencast, learners examine the lifecycle of fungi including asexual and sexual reproduction. Learners test their knowledge by identifying a diagram. There is a companion crossword puzzle game here: https://www.wisc-online.com/arcade/games/natural-science/science-biology/3016/the-zygomycetes-crossword

In this interactive object, learners use the Law of Cosines to calculate forces.

Explore what proteins are, their structure, and their functions.

Learners complete two exercises. In the first quiz, they divide viruses into two categories: RNA and DNA. They later match each virus with the disease it causes.

In this interactive object, students explore the basic elements and common terms associated with dimensions and leaders. A quiz completes the activity.

In this well-illustrated object, learners examine the structures and properties of the four types of solids: molecular, metallic, ionic, and covalent network. Five interactive questions are provided.

Learners read about endospores and view video clips demonstrating spore staining procedures. Correctly stained slides are shown.

Practice how to make research decisions using the 3 Rs.

The learner views several animations to study Newton's First Law of Motion, also known as "The Law of Inertia."

Students review the rule for writing the possessive form of singular nouns that end in an "s" sound. They then complete exercises.