Why Does It Take Longer to Boil Potatoes at High Altitudes? This column provides background science information for elementary teachers. This month's issue looks at why water boils at different temperatures at different altitudes.

The solar eclipse coming August 21 offers students the opportunity not only to explore the geometry of the solar system but also to learn about exoplanets transiting distant stars. Students can glimpse a great frontier of science: the search for other worlds and life. This article presents information on exoplanets, discovering planets around…

The Pelican's Nest, located near Mobile Bay in the Gulf of Mexico, is a science center supported by a local educational foundation. Programs are geared toward marine wildlife and the coastal habitat with an emphasis on hands-on learning for students in grades K-6. The director of the science center conducts daily classroom labs and discovery trips…

This article presents an analogy to illustrate the effect of surface roughness on surface wettability. I used a water-filled balloon to represent water droplet, a toothpick to represent surface roughness and Styrofoam as the surface. The analogies presented in this article will help visualize how roughness affects the wettability of the surface…

As plants and seed dispersal are common themes in primary science, the author thought that she would share an enquiry challenge activity that addresses many of the "working scientifically" objectives of the National Curriculum for England. Year 3 and 4 children had a whole afternoon made up firstly of "playing", planning and…

One way to help students understand the scientific inquiry process, and how it applies in investigative research, is to involve them in scientific investigation. An example of this would be letting them come to their own understanding of how different variables (e.g., starting products) can affect outcomes (e.g., variable quality end products)…

A kinesthetic classroom activity was designed to help students understand enzyme activity and catalysis of reaction rate. Students served the role of enzymes by manipulating Pop-It Beads as the catalytic event. This activity illuminates the relationship between reaction rate and reaction progress by allowing students to experience first-hand the…

This research aimed to determine the effects of Problem based learning (PBL) with cooperative learning (CL) and 'Numbered Heads Together' (NHT) on preschoolers' five trait dimensions of scientific creativity: Fluency, Originality, Elaboration, Abstractness of title, and Resistance to premature closure. A quasi-experimental pre-test and post-test…

Laboratory activity is closely related and yet is essential in the process of science teaching-learning. The hands-on laboratory experiment is the one normally used in school. Particularly with the state of online schooling, it is quite challenging to perform a hands-on laboratory activity. The combination of inquiry-based learning with virtual…

As student enrollment numbers continue to drop within university Physical Education Teacher Education (PETE) programs across the country, the importance of recruiting high school students into the fields of physical education has never been greater. The PETE and exercise science programs at a university in the Pacific Northwest collaborated using…

It never fails: you're in your office and the phone rings. Your department head says, "Hi! Fifty kids are coming to campus in 30 minutes. Can you meet with them and give them a one-hour hands-on activity that will make them excited about physics?" Likely you'll run to your demonstration room and grab anything that'll generate a bright…

Melton demonstrated a surprising disappearance using total internal reflection. When he put a Florence flask filled with marbles into a water tank and looked straight down from directly above the flask, he was only able to see marbles above a certain water level. When he added more water into the tank above the top line of the marbles, all of the…

The "'Streptomyces' genetics and secondary metabolism" laboratory course gives an introduction to the versatile soil dwelling Gram-positive bacteria "Streptomyces" and their secondary metabolism. The course combines genetic modification of "Streptomyces"; growing of the strain and protoplast preparation, plasmid…

This article reports on the theoretical output of a design research study, which concerns the design of a learning environment (LE) for helping students challenge the 'balance of nature'-idea and reach an up-to-date understanding about ecosystems' contingency. Our focus is set on whether it is feasible to articulate an empirically tested theory of…

I am writing this article to raise awareness of burst mode photography as a fun and engaging way for teachers and students to experience physics demonstration activities. In the context of digital photography, "burst mode" means taking multiple photographs per second, and this is a feature that now comes standard on most digital…