Plasticizers are chemical additives that enhance plastic flexibility. They are ubiquitous environmental contaminants and are commonly found in river and lake waters (Fromme et al 2002). The present study aimed to investigate the effects of a water-soluble plasticizer, dibutyl phthalate (DBP) on developing Medaka ("Oryzias latipes") embryos. Three…

The Edmund Rice Education Australia (EREA) Flexible Learning Centres aim to provide a supportive learning environment for young people who find themselves outside of the mainstream secondary schooling system. Drawing on twenty first Century learning principles, the Centres aim to deliver a personalised learning experience with an emphasis on…

This article explores ways that people impact ecological systems and how those systems can influence people's daily lives. Students use newspaper articles and case studies of scientific research to link daily human life and disrupted ecological function. This activity prompts students to think about their relationships with the natural world,…

Scientists, and science in general, move from the unknown to increasing levels of certainty. Teaching students about science means encouraging them to embrace and investigate the unknown, make reliable scientific claims, justify those claims with evidence, and evaluate the quality of the evidence. In all areas of science--and especially in…

We investigated the relationship between four inquiry-based teaching practices (use of: (1) models or applications, (2) hands-on activities, (3) interaction and (4) independent investigations) and science achievement for 15-year olds across eight countries participating in the Program for International Student Assessment (PISA) 2006. Within each…

This article describes how the Science Department at Shoeburyness High School in Essex introduced a space-themed year 8 (ages 12-13) science course to increase student engagement and motivation. As well as discussing the rationale for such curriculum change, it describes the processes of planning and resourcing the course, and the barriers that…

Research suggests that difficulty in making connections among three levels of chemical representations--macroscopic, submicroscopic, and symbolic--is a primary reason for student alternative conceptions of chemistry concepts, and computer modeling is promising to help students make the connections. However, no computer modeling-based assessment…

Gel electrophoresis is the single most important molecular biology technique and it is central to life sciences research, but it is often too expensive for the secondary science classroom or homeschoolers. A simple safe low-cost procedure is described here that uses household materials to construct and run DNA gel electrophoresis. Plastic…

Earth science has a part to play in broadening students' learning experience in physics. The Earth Science Education Unit presents a range of (free) workshops to teachers and trainee teachers, suggesting how Earth-based science activities, which show how we understand and use the planet we live on, can easily be slotted into normal science…

Mollusks, such as mussels and snails, are a great group to noodle because they are prevalent in banks and bottoms of river basins and in sandy beach habitats. Furthermore, their shells are easy to come by and safe to handle. There are six classes within the phylum Mollusca. In the activities described in this article, the authors focus on the…

Previous research indicates that when learners divide their attention over different sources of information (representations), learners perceive the information as more difficult and have a harder time increasing their understanding. This can be overcome by integrating representations. In this research, using 85 participants, we hypothesized that…

Education is one of the fundamental and critical indices of development in a nation or an individual. The challenges post by our fast changing and dynamic world informed the need to constantly access the educational process so as to guarantee quality of educational assessment; several factors have been identified to be responsible for students'…

In this article, Michael E. Wysession comments on the "Next Generation Science Standards" (NGSS), which are based on the recommendations of the National Research Council and represent a revolutionary step toward establishing modern, national K-12 science education standards. The NGSS involves significant changes from traditional…

Teaching science to secondary students in an online environment is a growing international trend. Despite this trend, reports of empirical studies of this phenomenon are noticeably missing. With a survey concerning the nature of laboratory activities, this study describes the perspective of 35-secondary teachers from 15-different U.S. states who…

The low interest of the U.S. students in sciences is an ongoing issue. One approach to promote the sciences is outreach activities, often targeted at grades K-12. Yet, a limiting factor in these outreach initiatives is their long-term feasibility, especially from an economic perspective. Another challenge is how to introduce scientific information…