Explores factors that can explain the rapid evolution of the water sciences. Discusses the investment in measuring systems that allow characterizations of water properties and the expansion of mathematical and systemic approaches to the interpretation of data. Contains 23 references. (DDR)

The use of chemical properties of metals and water via outer electron behavior models for instruction in science is presented. (MDR)

This booklet contains a programmed lesson on the properties of sea water. It is designed to allow students to progress through the subject matter at their own speed. Since it is written in linear format, it is suggested that students proceed through the program from "frame" to succeeding "frame." Instructions for the students and a list of lesson…

We present a sequence of two physics experiments, designed for use with secondary students, which investigate the specific heat of sand, both qualitatively and quantitatively, without a calorimeter. We use two LM35 temperature sensors and an Arduino prototype board for data acquisition. The results are good and allow teachers to discuss the…

When injecting dye into a vortex, one finds that the dye remains captured around the vortex core over minutes, despite the fact that the vortex (and the dyed region) is strongly time-dependent. According to a recent theory, three-dimensional time-dependent vortices should be defined as rotating, material-holding regions of the fluid. Vortices…

Described are 2,589 research projects under the general headings of: Properties of Water, Water Motion, Meteorology, Survey and Prediction, Living Systems (non-human), Public Health and Safety, Marine Geology, Engineering and Technology, Costal Zone Management and Use, Legal Studies, Education and Training, and Facilities. Each description…

The interaction between water and surfaces is observed in our daily lives and is used in laboratories to study materials properties, such as interfacial tension. Making the connection between fundamental scientific phenomena and everyday observations is a powerful method of highlighting the importance and relevance of science to the K-12…

A thematic approach provides the best opportunity for children to discover the linkage among science, mathematics, and language arts. This document examines the different physical properties of water in the forms of frost, snowflakes, snow, and ice. The seven integrated investigations explore freezing, melting, insulation, how snow affects the…

Describes science activities which use simple chemical tests to distinguish between materials and to determine some of their properties. Explains the water, iodine, heat, acid, baking soda, acid/base indicator, glucose, and sugar tests. Includes activities to enhance chemical testing and a list of suggested powders for use. (RT)

The city of Flint, Michigan switched its water source in April, 2014, and, to reduce costs, anti-corrosion agents were omitted from water treatment. Consequently, lead leached into pipes, contaminating the water supply and exposing Flint's children to lead well beyond safety standards. The event became known as the Water Crisis, and now dominates…

Water Cycle is one of the units of a K-6 unified science curriculum program. The unit consists of four organizing sub-themes: (1) atmosphere (highlighting the processes of evaporation, condensation, convection, wind movement and air pollution); (2) water (examining the properties of liquids, water distribution, use, and quality, and the water…

Representations are ubiquitous in chemistry. They are part of the chemistry language instructors use to communicate chemistry phenomenon to students. Literature calls in support of learning with multiple representations, but there is a pre-requisite for students to learn from a single representation. In this exploratory study, 1086 students in…

Many proteins use transition metals, exploiting their properties to achieve particular metabolic effects. Some of these functions are well known, such as the use of iron and copper in oxygen redox chemistry, molybdenum in nitrogen reduction and zinc in the nucleophilic activation of water. I review these examples alongside some lesser-known…

Groundwater contamination is a serious environmental problem, given that all living things depend on this essential resource. Groundwater represents less than 1% of all water found on Earth, but nearly 90% of the freshwater used comes from groundwater (USGS 2016). The problem-based activity described in this article actively engages students in…

Interfacial solar vapor generation has recently drawn much attention because of its high solar-to-vapor generation efficiency. Here we introduce the basic experimental procedures and analysis for undergraduates to perform such an experiment to catch up with the cutting-edge research wave. Interfacial solar vapor generation employs an interfacial…