Learners follow a four-step process to determine the empirical formula of a compound from the masses of its constituent elements. The molecular formula is determined in a fifth step using the molecular weight of the compound.

In this interactive object, learners calculate formula and molecular weights by working through five examples and two problems.

Thousands of health and beauty products claim to be cruelty free - but do you know how to spot a fake? Test your knowledge and explore the exciting science that's delivering cutting-edge and better alternatives to animal testing in this interactive experience. Make decisions as both a beauty blogger and a research scientist as you navigate animal testing in the health and beauty industry.

Learners read a general description of the function and structure of leaves and examine drawings and microscopic views. A matching exercise completes the learning object.

In this learning activity you'll study the structure of the cell membrane and construct it using the correct molecules.

Practice how to make research decisions using the 3 Rs.

In this module, you will explore the many kinds of cell models and learn about the ways they differ from animal models.

Discover the fascinating intersection of veterinary science and human medicine in this module. "Can Animal Studies Predict Human Results?" Dive into groundbreaking research and ethical debates as we explore how animal testing influences the future of medical breakthroughs by unraveling the complexities of animal and human testing.

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

The Animal Welfare Act, or AWA, gives protection to animals used in research, education, and entertainment. Explore ethical use and some of the current alternatives in this module.

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

Imagine you're a college student volunteering in a lab that includes animal research and you're trying to decide if this would be a good experience. Play through this module to understand the regulations for animal well-being and how they impact animal welfare. Prove you're an Animal Welfare Whiz!

In this learning activity you'll review how every protein molecule of an organism is synthesized by that organism in a prescribed process. This activity helps students understand the fundamental life process of making protein.

In this video you'll study the structure of the cell membrane and construct it using the correct molecules.

In this animated activity, learners examine the two major phases of cell division: mitosis and cytokinesis.

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.

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/...

In this video, learners view the parts of an animal cell and its organelles.

Learners examine the function of each part of a microscope and follow step-by-step instructions on how to focus on a specimen. They also review the proper use and care of a microscope and test their knowledge in two drag-and-drop exercises.

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