We developed an introductory chemical engineering design laboratory course coupling traditional, hands-on, and virtual learning techniques. The course is centered on a set of interactive, online simulations mimicking laboratory experimentation, which the students complete for homework prior to completing a corresponding hands-on experiment as a…

Schools often have limited resources to devote to science education, which can impact student interest in and preparedness for careers in STEM. Seattle Children's Research Institute created the Science Adventure Lab, a mobile laboratory program, to support and enrich science education at low-resource schools and stimulate interest in science and…

An independent evaluation of an environmental science program that combined digital media with hands-on activities (called "Plum Landing") was conducted in 2020. The study included 32 families with six- to eight-year-old children. The evaluation assessed the extent to which the program was successful at promoting connectedness to nature,…

The site-specific introduction of unnatural amino acids (UAAs) has been demonstrated to be a useful tool in protein engineering. Moreover, the incorporation of a UAA into a protein has become feasible with the increased commercial availability of UAAs and robust expression plasmids. In addition to the ease of incorporation, the concepts utilized…

An unfavorable pH can block a feasible electron transfer for a pH dependent redox reaction. In this experiment, a series of potentiometric titrations demonstrate the sequential loss in feasibility of iron(II) dichromate redox reaction over a pH range of 0-4. The pH at which this reaction failed to occur was termed as a pH locked reaction. The…

In this upper-level undergraduate experiment, students utilize micro-Raman spectroscopy to characterize graphene prepared by mechanical exfoliation and chemical vapor deposition (CVD). The mechanically exfoliated samples are prepared by the students while CVD graphene can be purchased or obtained through outside sources. Owing to the intense Raman…

Taking objects apart including old electronics, product packing, and living plants, helps children understand how things work. Documenting this "unbuilding" or "deconstructing" encourages children to first consider the entire object, then the parts, and finally, the purpose of the parts. This article provides a lesson based on…

In this laboratory experiment, the synthesis of a supported solid catalyst (Cu/SiO2) and its application in the dehydrogenation of cyclohexanol performed under flow conditions was studied. The experiment was planned for a group of two or three students for two 6 h long sessions. The copper catalyst was synthesized using incipient wetness…

Agriscience teachers help support the mission of the American Floral Endowment to inspire people to pursue careers working with plants by providing curricula related to ornamental horticulture. Nevertheless, an overall understanding of how the horticulture industry is connected to the studies of science, technology, engineering, and mathematics…

Computational thinking (CT) is increasingly acknowledged as an essential skill to solve problems interdisciplinary. This paper describes the development and validation of the unplugged activity of CT in science (ACTS) module, which is specifically designed to integrate CT. The present study was conducted in five phases: Phase I was composed of…

An experimental protocol that provides an excellent way to discuss concepts at the crossroads of organic chemistry and biochemistry employing biocatalysis is presented. By evaluating several reaction parameters (enzyme source, organic solvent, and acyl donor), it was possible to conduct an enzymatic kinetic resolution experiment using…

In this experiment, students perform an air-free synthesis of three dichlorophosphinenickel(II) compounds, NiCl[subscript 2](PPh[subscript 3])[subscript 2], NiCl[subscript 2](PCy[subscript 3])[subscript 2], and NiCl[subscript 2](DPPE), using NiCl[subscript 2]·6H[subscript 2]O and the appropriate phosphine as the precursors. These colorful nickel…

Learning about circuitry by connecting a battery, light bulb, and wires is a common activity in many science classrooms. In this paper, we expand students' learning about circuitry with electronic textiles, which use conductive thread instead of wires and sewable LEDs instead of lightbulbs, by integrating programming sensor inputs and light…

In this work we describe an authentic performance project for Instrumental Analysis in which students designed, built, and tested spectrophotometers made from simple components. The project addressed basic course content such as instrument design principles, UV-vis spectroscopy, and spectroscopic instrument components as well as skills such as…

A laboratory experiment for students in advanced inorganic chemistry is described. In this experiment, students prepare two metal complexes with a potentially bidentate-carbene ligand. The complexes are synthesized by reaction of a bisimidazolium salt with silver(I) oxide or palladium(II) acetate. Silver and palladium complexes are binuclear and…