Interactions with forces and energy can range from a toddler dropping toys repeatedly for someone else to pick up to a group of fifth graders playing soccer at recess. In addition, students may have observed the power of water to move physical objects by seeing news footage of rising floodwaters, experimenting with a garden hose, or spending a day…

Allelopathy plays crucial roles in invasive plant viability and agricultural production systems. However, there is no well-established hands-on learning activity to teach the concept of allelopathy. Nor is there an activity which allows students to gain knowledge about glucosinolates and their corresponding enzyme, myrosinase, which are present in…

Sculpting representations of human organs out of modeling clay is an acknowledged method of teaching anatomical structures. Because of its potential to provide detailed spatial information, stereoscopic imagery can be understood to function as a suitable template for such sculpting tasks. Currently, it is unknown whether the advantages of…

This study aimed to explore low and non-low achievers' motivation towards science learning among 8th graders in two public schools in central Taiwan under inquiry-based instruction. Mixed design research methods were adopted, and students were divided into experimental (n = 56) and control groups (n = 45). Six non-consecutive inquiry units…

The role of practical work in the training of student teachers is central to the development of their future pedagogy and practice. However, not all laboratory based activities give sufficient challenge in the development of both cognitive and practical skills. The activity proposed in this paper helps reinforce an understanding of reaction…

The purpose of the study was to examine and describe the attitudes of Turkish early childhood children in science. This study explored the causal factors that influence children's attitudes toward science such as teachers' years of teaching experiences, frequency of teaching science in a week, and teachers' teaching style. Turkish children (N=44)…

By the age of five, there is already a science achievement gap among young children in the United States. Educators have worked to address this gap between upper elementary and middle school children for many years. However, little attention has been placed on preventing the gap by focusing on the youngest learners. This article describes how to…

As every elementary teacher knows, an elementary classroom is a busy place. While literacy and mathematics command the majority of hours of the school day, many schools are left with an inadequate amount of time to devote to science. In an urban district, students in grades K-5 receive a mere 30 minutes a day for science and social studies. There…

The practice of RNA isolation in undergraduate experimental courses is rare because of the existence of robust, ubiquitous and stable ribonucleases. We reported here modifications to our original protocol for RNA isolation from plant tissues, including the recovery of nucleic acids by ethanol precipitation at 0 degrees C for 10 min and the…

Educators and researchers often suggest that participation in "real" science may help students "think like" or "see themselves as" scientists because students participate in and contribute to the broader scientific community. However, bringing citizen science (CS) activities into the classroom does not necessarily…

Science, Technology, Engineering and Math (STEM) education is one of the most discussed topics among educators today. The current high-tech world requires more scientists and engineers than ever before. Although many strategies have been introduced to motivate students to enter technical fields, additional approaches are needed to continue to…

Putting an electrical circuit within an inaccessible black box and asking pupils to deduce what wiring is contained within the box based solely on the circuit's behaviour is a simple teaching idea with a long history. Problems arise when trying to build enough physical black boxes to simulate a larger number of circuits within a typical school's…

Children are natural engineers. Engineering design activities for preschoolers introduce practices and encourage scientific habits of mind. The "Next Generation Science Standards" (NGSS Lead States 2013) highlight that crosscutting concepts and disciplinary core ideas can not be mastered without engaging in scientific investigations and…

Science students need exposure to activities that will help them to become familiar with phenomena exhibiting exponential decay. This paper describes an experiment that allows students to determine the rate of thermal energy loss by a hot object to its surroundings. It requires limited equipment, is safe, and gives reasonable results. Students…

A study was conducted to investigate the extent to which previous science achievement affected student performance in traditional hands-on and virtual laboratory environments. A sample of 70 first-year college students was employed in a counterbalanced A-B-A-B experimental design. The study spanned four instructional weeks of laboratory…