In this interactive activity from ChemThink, learn how ionic bonds are formed and how an ionic bond structure is represented by its formula.

The University of Iowa Center for Global and Regional Environmental Research and College of Education teamed up to develop free eighth grade science curricula on land use and climate science, in response to Iowa’s grade level alignment of the middle school Next Generation Science Standards.

Primary author Dr. Ted Neal, clinical associate professor of science education, led a team of graduate and pre-service teaching students and CGRER scientists to develop the material. They grouped standards, resources and lesson material into six bundles, each designed to engage Iowa’s middle schoolers with local data and information on relevant topics like athletic concussions and agriculture.

These lessons are built on NGSS principles and put learning in the students’ hands with hands-on activities for groups and individuals. Kids will have ample opportunity to get curious, generate questions and lead themselves to answers.

Students will consider the marketing campaigns of Gatorade to help identify what makes a substance an electrolyte. Students will plan and conduct an investigation to test common ionic and covalent substances to determine if the substance is an electrolyte or non-electrolyte when dissolved in solution. This lesson results from a collaboration between the Alabama State Department of Education and ASTA.

In this simplistic, introductory lesson in Life Science, students will converse with peers to prepare a list of seven common characteristics in organisms after determining if pictured items are living or nonliving. Students will use background knowledge and pictures to identify patterns that represent all living organisms. After watching a short video, students will separate living and nonliving things by coloring or drawing an outdoor environment. Students will answer this question: Is George Washington Living, Nonliving, or Dead? as an Exit Ticket. This lesson results from collaboration between the Alabama State Department of Education and ASTA.

This experiment uses the heating of water to explore the concepts of density and volume. Students learn about the transfer of heat energy within the atmosphere, hydrosphere, and Earth's interior, and connect this transfer to differences in density, which in turn result in motion. As part of the investigation, students will also become familiar with the Celsius and Fahrenheit temperature scales.

This is a third-grade math lesson on the topic of tornadoes and natural disasters. Students will enter data from an internet search on the number of tornadoes occurring in each state into a spreadsheet. Students will analyze and determine which states are the most active in tornado occurrences and create bar graphs and a scaled picture graph from the data collected. This unit was created as part of the ALEX Interdisciplinary Resource Development Summit.

This module was authored by the Auburn University NanoBio MSP Fellows Will Haynes, Hannah Taylor, and Catherine Wolfe under the review and guidance of Drs. Virginia Davis and Chris Schnittka. This lesson is about compounds, mixtures, and solutions and relating those to synthetics, with the focus being plastics. This lesson focuses on how plastics are made and the negative impacts of some plastics. It goes on to explain how the addition of nanoscale particles can be the solution for these problems. This lesson includes a lecture and a hands-on activity where the students are creating plastic from the milk protein casein.

In this problem-based learning module, students will investigate the importance of genetic diversity will be explored by examining several case studies revealing consequences that can occur in individuals within a limited gene pool and how a variety of genes can lead to the survival of a species. Students will be able to create and interpret information from pedigree charts.

In this video segment adapted from NOVA scienceNOW, follow scientists in their quest to understand how stable elements are made and how to create the elusive element 114.

Young students may think the sun is the biggest and brightest star in the universe since it appears to be the brightest star in the sky when viewed from Earth. In this lesson, students will use flashlights to construct a model of the difference in stars' appearances due to their distance from Earth. Then they will use the Internet to research the sun and stars to create a poster, picture book, or digital presentation to explain that the sun is not the biggest or brightest star--it only appears that way due to its proximity to Earth. This lesson results from a collaboration between the Alabama State Department of Education and ASTA.

Students will begin this lesson by ordering the events of their morning using relative and absolute dating techniques. Students will also write a personal definition of the terms absolute age and relative age. Next, students will work with collaborative groups to order events in Earth's geologic history by relative age, then order those same events by absolute age in a scaled model timeline. Lastly, students will use the time-scale model created with their group members to analyze events in Earth's geologic history. This lesson results from a collaboration between the Alabama State Department of Education and ASTA.

In this activity, students organize a set of fossils chronologically and learn to correlate, based on fossil evidence, the stratigraphy of one location with that of an adjacent location. Earth Science Reference Tables are used to identify the epoch of occurrence and the age of each of the fossil specimens. Students will become familiar with the concept of index fossils and understand what makes a good index fossil.

The student engineers will design and build a new water filtration system for an overpopulated, poverty-stricken community that is drinking contaminated water from wells, rivers or springs not treated by municipal water systems. Students will be involved in planning, designing, building, collaborating, calculating, budgeting, analyzing, and reflecting on a real-world design challenge. This lesson was created as part of the 2016 NASA STEM Standards of Practice Project, a collaboration between the Alabama State Department of Education and NASA Marshall Space Flight Center.

Students will construct 3-dimensional representations of each known element of the periodic table using cereal-sized boxes as their mediums. By creating these models, students will gain an in-depth understanding of their chosen element's discovery, history, unique properties, and place on the Modern Periodic Table. Students will also be able to identify and describe basic periodic trends. This lesson was created as part of the 2016 NASA STEM Standards of Practice Project, a collaboration between the Alabama State Department of Education and NASA Marshall Space Flight Center.

In this interdisciplinary lesson about atmospheric heating, students investigate the three transfers of heat: radiation, conduction and convection. This lesson results from a collaboration between the Alabama State Department of Education and ASTA.

In this lesson, which was adapted from Gravity and Falling Objects, students predict what will happen when different objects are dropped at the same time from the same height, and then test their predictions. Next, they will observe objects of different masses being dropped and leaking cups being dropped into a bucket. The activities in this lesson will demonstrate that all objects fall at the same rate, regardless of their mass. Finally, students will predict what will happen when two balls of the same mass but different volumes--and then two balls of different masses but the same volume--are dropped at the same time from the same height. This lesson results from a collaboration between the Alabama State Department of Education and ASTA.

This video, adapted from material provided by the ECHO partners, provides a portrait of IŰ__ŒóíŠupiaq whaling as a community activity, as told through the story of one hunt.

Students are tasked with designing their own experiment to discover why you cannot add fresh pineapple to Jell-O. After analyzing their results, they will construct a CER that will be used to assess their understanding of the concepts.

In this video from Science City, meet a forensic scientist. She describes the steps to recover and analyze fingerprints to help solve crimes. She also discusses common attributes between art and science.

These are lecture notes for cs427 at Oregon State University, an introductory course in cryptography at the advanced undergraduate level. By reading and studying these notes, you should expect to learn how to:

*State and interpret the standard formal definitions for the most common cryptographic security properties (privacy and authentication).
*Formally prove security properties of sound cryptographic constructions, and break the security of unsound ones.
*Choose the appropriate cryptographic primitive for a task (block ciphers, hash functions, MACs, public-key encryption, etc.) while avoiding common pitfalls.
*Along the way, you will also learn how the most common cryptographic constructions work.