In this activity students investigate soil pH differences and buffering capacity as it relates to acid rain, interpret and present their findings, and develop a new, experimental question.

This activity is a classroom investigation where student observe several properties of water; adhesion and cohesion. They will transfer this knowledge to predicting other materials that will have adhesion with water molecules.

In this video segment adapted from ZOOM, the cast builds a suspension bridge from a couple of chairs, some cardboard, and rope.

This activity is a classroom lab where students test common household liquids for pH level on the pH continuum, 1-14. They compare and contrast everyday use of the liquids, and how this relates to the liquids' pH property.

This activity is an inquiry investigation where students gather data on why the Cartesian diver sinks or floats. They then develop a new question and then conduct a new investigation by changing one variable and repeat the altered experiment and record their conclusions.

In this activity students collect snow in a cup, predict how much water will be in the cup when the snow melts. Students are exposed to evaporation as the water "disappears" over time and try to stop this from happening.

This activity is a chemistry lab-based investigation where students apply observational skills and critical thinking skills to finding specific heat and heat capacity using different temperatures of water and solids. A final activity will assess students understanding of specific heat and heat capacity and promote data analysis skills, using real-life situations.

This activity will give kindergartner the chance to see what happend when they paint an iodine solution over a lemon juice message. They get to make thier own invisible message!

We now know how to analyze pure compounds, but what if we have a mixture? Spectrophometry becomes quite complex when dealing with multiple species of compounds at once. In order to purify a compound we can separate if from a mixture based on its intrinsic chemical properties. Remember that fluorescein is negatively charged at a pH above pKa of the carboxyl group. We can take advantage of this fact and use its attraction to positive charges to separate it from other molecules. In ion-exchange chromatography, we will use a stationary phase with a positive charge, allowing negatively charged molecules to bind and positively charged species to flow through. We can then disrupt this interaction and retrieve our now-purified molecule, and use spectrophotometric analysis of our purified fractions to determine how well we were able to separate our molecules.

This short reading discusses several important elements of ionic bonding like electronegativity, the octet rule, and properties of ionic compounds.

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

This is a presentation that goes over key factors in ionic bonding like the octet rule and electronegativity.

This is a POGIL activity geared for general chemistry students. The activity guides students through the process of determining how ionic and binary compounds are named as well as inorganic acids.

This activity lends itself well to the review and repetition of previous topics and skills. The multi-faceted learning (and display of learning) is an excellent manner of getting the students to think about what they are doing and how they are answering.

This activity is a mini-lab where students determine a procedure they might use to prove that air is matter.

This lab helps students to understand the density is state dependent and can change based on the state of the element.

Spreadsheets Across Curriculum module/Introductory chemistry course. Students build spreadsheets to examine unit conversions between the metric and English systems. Spreadsheet level: Beginner.

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.

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.

Are all atoms of an element the same? How can you tell one isotope from another? Use the sim to learn about isotopes and how abundance relates to the average atomic mass of an element.