Sites contaminated by heavy metals, such as industrial waste sites, create unwelcoming environments for plant growth. Heavy metals can have a wide range of toxic effects such as replacing essential elements or disrupting enzyme function. While some heavy metals are essential to plant nutrition at low concentrations, high concentrations of any…

The topic of invasive earthworms is a timely concern that goes against many preconceived notions regarding the positive benefits of all worms. In the cold-temperate forests of North America invasive worms are threatening forest ecosystems, due to the changes they create in the soil, including decreases in C:N ratios and leaf litter, disruption of…

Soilborne pathogens can devastate crops, causing economic losses for farmers due to reduced yields and expensive management practices. Fumigants and fungicides have harmful impacts on the surrounding environment and can be toxic to humans. Therefore, alternative methods of disease management are important. The disease suppressive abilities of…

This article describes a hands-on science curriculum used to teach kindergarten students about decomposition at the Riverdale Country School in the Bronx, New York. The goal was to get students to spend more time in the natural world and to have the opportunity to literally "get their hands dirty." This was premised on the idea that the…

We present a novel laboratory project employing "real-time" RT-qPCR to measure the effect of environment on the expression of the "FLOWERING LOCUS C" gene, a key regulator of floral timing in "Arabidopsis thaliana" plants. The project requires four 3-hr laboratory sessions and is aimed at upper-level undergraduate…

Despite international attention and attempts to preserve the environmental diversity of the Amazon, it is an accepted fact that those who inhabit the forest must be the ones who preserve it. This article presents an analysis of how children in small rural riverine communities along the Amazon understand the importance of environmental preservation…

This article forms part of a major study being conducted in Zimbabwe to explore the possibilities of integrating indigenous knowledge of plant healing (Ikoph) into western-oriented classroom science. The article reports on an aspect of research methodology. This study explored appropriate strategies for gaining access to indigenous knowledge…

This laboratory investigation challenges students to synthesize, analyze, and compare viable alternative fuels to Diesel No. 2 using a renewable resource, as well as readily available reagents and supplies. During the experiment, students synthesized biodiesel from soybean oil in an average percent yield of 83.8 ± 6.3%. They then prepared fuel…

"Green" has a common use among the public. Both natural and social environment have an important effect on this expression. People tend to explain the scientific concepts using well-known situations which they intensively see around the living area. In this sense, photosynthesis is one of the most important biological concepts including…

The study reports on species knowledge among German adolescents (n = 507) as: (1) self-assessed evaluation of one's species knowledge; and (2) factual knowledge about popular local herbs and trees. Besides assessing species knowledge, we were interested in whether selected demographic factors, environmental attitude (as measured through the New…

This study analysed the characteristics that children in the initial stages of schooling attribute to living beings. Interviews were conducted with 138 children aged 3-7 years in a school in the Spanish city of A Coruña, Galicia. Aspects found in pen-and-paper activities dealing with living beings, provided by the teachers (158 in total) at this…

Elementary science standards emphasize that students should develop conceptual understanding of the characteristics and life cycles of plants (National Research Council, 2012), yet few studies have focused on early learners' reasoning about seed structure and function. The purpose of this study is twofold: to (a) examine third-grade…

This article forms part of a major study being conducted in Zimbabwe to explore the possibilities of integrating indigenous knowledge of plant healing (Ikoph) into western-oriented classroom science. The article reports on an aspect of research methodology. This study explored appropriate strategies for gaining access to indigenous knowledge…

The learning of plants has garnered considerable attention in recent years, but students often lack the motivation to learn about the process of plant growth. Also, students are not able to apply what they have learned in class in the form of observation, since plant growth takes a long time. In this study, we use augmented reality (AR) technology…

One challenge in science education assessment is that students often focus on surface features of questions rather than the underlying scientific principles. We investigated how student written responses to constructed-response questions about photosynthesis vary based on two surface features of the question: the species of plant and the order of…