This activity is a guided inquiry where students investigate the colors contained within a single marker color and interpret what this means about the sizes of the molecules.
In this interactive activity from ChemThink, examine the basic properties of matter at an atomic level and consider how various atoms affect the way a substance behaves.
This activity is a lab where students will be working with chemical changes and reactions. It's a simple activity that can be done with household items.
The periodic table of elements is one of the greaest achievement in chemistry, and understanding its arrangment helps us to understand many aspects of chemistry. This pathway provides resources to understand several of the trends on the periodic table, such as electronegativity and the number of bonds an atom can form.
Learn more about the Periodic Table of Elements with this choice board of actvities.
This interactive periodic table developed for Teachers' Domain provides detailed information about the chemical properties of elements and illustrates the electron configurations that determine those characteristics.
This activity teaches students about the periodic table and how element properties can be predicted through periodic trends.
Learn how the periodic table organizes the known elements of our world. Check out our videos and exercises on atomic structure and properties and periodic trends.
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
Through this lesson and its associated activity, students explore the role of biomedical engineers working for pharmaceutical companies. First, students gain background knowledge about what biomedical engineers do, how to become a biomedical engineer, and the steps of the engineering design process. The goal is to introduce biomedical engineering as medical problem solving as well as highlight the importance of maintaining normal body chemistry. Students participate in the research phase of the design process as it relates to improving the design of a new prescription medication. During the research phase, engineers learn about topics by reading scholarly articles written by others, and students experience this process. Students draw on their research findings to participate in discussion and draw conclusions about the impact of medications on the human body.
Students learn about the basic principles of electromicrobiology—the study of microorganisms’ electrical properties—and the potential that these microorganisms may have as a next-generation source of sustainable energy. They are introduced to one such promising source: microbial fuel cells (MFCs). Using the metabolisms of microbes to generate electrical current, MFCs can harvest bioelectricity, or energy, from the processes of photosynthesis and cellular respiration. Students learn about the basics of MFCs and how they function as well as the chemical processes of photosynthesis and cellular respiration
This activity is a method of tying a multitude of physical (and chemical) properties together showing what makes a substance unique and identifiable. This activity is a great way to lead the students into developing their procedures, their further investigations, and yet giving them the feeling of responsibility and ownership for their learning.
In a class demonstration, the teacher places different pill types ("chalk" pill, gel pill, and gel tablet) into separate glass beakers of vinegar, representing human stomach acid. After 20-30 minutes, the pills dissolve. Students observe which dissolve the fastest, and discuss the remnants of the various pills. What they learn contributes to their ongoing objective to answer the challenge question presented in lesson 1 of this unit.
Watch the rubber bands vibrate on homemade guitars in this video segment adapted from ZOOM as cast members talk about pitch and demonstrate how to make a cereal box instrument.
This video segment, adapted from ZOOM, explores the different sounds that a simple drinking straw can produce when you cut the straw and blow into it.
This video segment, adapted from ZOOM, demonstrates how to use a drinking straw and a bottle full of water to make low- and high-pitched sounds.
This is a short unit (including hands on activities) on polymers and plastics to expand our study of physical/chemical properties and changes.
Create a flower and vase using nonrecyclable plastics
This video segment adapted from A Science Odyssey uses animation and archival footage to provide an overview of the theory of plate tectonics.
This video segment adapted from NOVA uses animation to show the relationship between the movement of a tectonic plate and whether volcanoes on the Hawaiian Islands are active or dormant.
This is an activity on polymers and plastics to expand our study of physical/chemical properties and changes.