In this animated and interactive object, learners examine the properties of liquids, solids, and gases.

In this video, you'll review how every protein molecule of an organism is synthesized.

Learners read about lab equipment and basic safety measures. In a quiz, they view photos and determine if the lab technicians pictured are using safe practices.

Learners examine what defines a fungus and read how fungi differ from animals and plants.

Roman numerals are used to identify the charges on metal cations having multiple oxidation states. Five examples are provided for practice.

In this interactive object, learners identify the parts of an animal cell and its organelles.

In this animated object, learners compare the mode of action of steroids with the action of amino acid-based hormones.

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

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 learning activity you'll assembles parts of a virus and match virus terms and descriptions.

In this screencast, learners examine the steps of carbohydrate digestion.

In this animated and interactive object, learners follow two rules to write unit conversion fractions.

In this screencast, learners read descriptions of the actions of the superficial skeletal muscles and see their locations.

Learners read how fruits are classified according to their texture and according to how they developed from their floral anatomy.

In this interactive and animated object, learners examine the characteristics, ecological importance, and lifecycle of the ascomycetes of the fungi kingdom.

Learners read about the mutations that occurred in plants for the successful transition from an aquatic to a terrestrial existence. The classification of plants is based on these adaptive structures.

In this interactive object, learners calculate the amount of heat evolved or absorbed in chemical reactions. Four practice problems are provided.

In this well-illustrated object, learners examine basic floral anatomy. The flower is the reproductive organ of the angiosperm.

Learners read a description of torque and study the factors that cause its magnitude to change.

Explore the location, structure, and function of the juxtaglomerular (JG) apparatus.

Learners examine graphs and read that the heat of fusion is the heat energy absorbed by one mole of solid as it is converted to liquid, while the heat of vaporization is the heat energy absorbed by one mole of liquid as it is converted to gas.

Learners play a vascular system "game" to identify the arteries, capillaries, and veins that make up the renal blood supply pathway. A score is given at the end of the activity.

In this animated object, learners examine the major descending tracts of the nervous system. A matching exercise completes the activity.

Students examine standard pressure in this interactive object.

Learners examine the method for calculating the atomic weight of copper from the natural percent composition of each of its two isotopes.