In this mini-lab students will use chromatography to compare the mobile phase and the stationary phases of different inks used in marking pens. They will also determine the polarity of the solvents and inks. Finally, the students will use their calculated information to solve a crime.

This activity is an investigation where students explore the properties of color and light, using mixtures of common everyday materials.

After using the historical development of the Standard Model to develop introductory understanding, students link to OPAL and DELPHI data archives from CERN to identify and study the tracks from elementary particles.

This activity is used to introduce the different properties of states of matter, by testing an unknown substance with household materials to determine which state of matter most closely resembles the material. It also can invole data collection, reasoning, grph making, and presentation of findings.

Students act as chemical engineers and use LEGO® MINDSTORMS® NXT robotics to record temperatures and learn about the three states of matter. Properties of matter can be measured in various ways, including volume, mass, density and temperature. Students measure the temperature of water in its solid state (ice) as it is melted and then evaporated.

This video segment from IdahoPTV's D4K explains and gives examples of the 4 states of matter: solid, liquid, gas, and plasma.

This activity is a lab investigation where students observe the four states of matter. At the end of the investigation students should be able to know that the differences among the physical states depend on the distance between the atoms or molecules and on the rate of movement of the atoms or molecules. And, that pressure and temperature control these two factors.

Students will statistically analyze data gathered in reference to the Abraham Lincoln penny.

This activity is a lecture where students learn the basic concept behind stoichiometry, mole ratios.

Short demonstration on scientific notation by asking students to place numbers on a number line using string and notecards.

Dr. Chris Muhlstein explains the challenge of studying materials that are too small to see with the naked eye. The technique some scientists use to observe individual atoms is similar to the technique of using touch to find out the size, shape, and location of objects in a small room. [1:05]

This lab and demonstration activity involves students conducting chemical reaction experiments to determine the chemical reaction type and writing balanced equations.

This activity is a lab where students gather data using glass pipettes to understand the concept of precision and data analysis.

This lab is an activity designed to demonstrate to students the importance of the proper use of lab equipment. Also to demonstrate how math can be used as a tool for analysis of data.

This article provides elementary school teachers with background knowledge about science concepts needed to understand the first of seven essential principles of climate literacy--the sun is the primary source of energy for our climate system. Graphs, diagrams, and oneline resources provide more background for the teacher. The article appears in a free online magazine that focuses on the seven essential princples of the climate sciences.

Use this interactive site to enhance students' spelling and vocabulary while refreshing their memories in history, geography, language, science, and entertainment. It is available to use on line or you can purchase leveled apps for the I-Phone.

Students experiment and hypothesize about surface tension and cohesion, using water, ground black pepper, liquid soap, and other household products.

Eric Rosado discusses the key people and discoveries having to do with the periodic table that have molded our understanding of chemistry today. [4:19]

The Take Action column in the free, online magazine Beyond Weather and the Water Cycle suggests actions young people (K-grade 5) can take to reduce the impacts of climate change. The magazine examines the recognized essential principles of climate literacy and the climate sciences as well as the guiding principle for informed climate decisions.