Learners view an explanation of how to read a graduated cylinder by measuring the lowest portion of the meniscus. A quiz completes the activity.

In this animated and interactive object, learners observe how two, three, or four groups of electrons around the central atom cause the shape of the molecule to be linear, trigonal planar, bent, tetrahedral, or pyramidal. Seven examples and eight interactive questions are provided.

In this animated object, learners examine the formation of peptide bonds through dehydration synthesis.

Students read an introduction to the lab equipment used to contain and dispense chemicals. A quiz completes the activity.