This video segment adapted from FRONTLINE looks at nuclear fission as an energy source that can be used to generate electricity.
Ancient alchemists attempted but failed to turn different substances into gold. It turns out that the only way to turn one element into another element is using nuclear chemistry! Nuclear reactions change the composition of an atom's nucleus, and this process is useful for many applications.
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.
This is a lab experiment where students make detailed observations of a candle use them to infer the products of combustion of a candle.
This activity is used to introduce or reinforce in students the importance of differentiating between observations and interpretations and quantitative and qualitative observations during classroom experimentation or demonstrations
This video segment produced for Teachers' Domain features a time-lapse video of clouds forming, changing, and moving across the sky.
This brief video segment produced for Teachers' Domain features time-lapse video of a sunrise and a sunset.
Students will use science skills of observing, describing and measuring in the context of Making Ice Cream. Students will understand the concept that physical properties can change.
This video segment adapted from Shedding Light on Science illustrates how light changes speed, and thus direction, in a process known as refraction.
Student teams create, test and improve oil spill cleanup kits, designing them to be inexpensive and accessible for homeowners to use or for big companies to give to individual workers to aid in personal home, community or corporate environmental oil cleanup. After deciding on a target user and scenario, teams conduct research and draw from an assortment of ordinary materials and supplies made available by the teacher. As a concluding gallery walk, each group presents its final prototype and summary poster to the rest of the class.
Data modeling activity using oil reserve and consumption data. Students predict when oil reserves meet or exceed reserves.
Test what happens when soap is added to oil and water
This video segment adapted from NOVA follows the clean-up effort after the 1989 Exxon Valdez oil spill off the coast of Alaska. Also featured is a marsh where an oil spill occurred 20 years earlier; analysis suggests that environmental damage may last for decades.
This is an art project where oil paints and water is used. Students will have already explored the densities of oil and water.
This activity is designed to help deepen our language and understanding of taking observations. We will also learn that water molecules are in constant motion.
Students will investigate what constitutes a solid and a liquid state of matter. Using the probe, students' misconceptions on states of matter will be exposed. The lab, which uses a cornstarch, water and food coloring mixture, will be explored. The students will determine how that exploration will take place and devise a procedure to determine the state of matter. Students will then, as a group, present their findings to the class. After all the groups have presented their findings, the groups with the same findings will combine and defend their findings to the other group(s) until the class, as a whole, has reached a consensus.
Using their knowledge of the phases of matter, the scientific method, and polymers, student teams work as if they are chemical engineers to optimize the formula for slime. Hired by the fictional company, Slime Productions, students are challenged to modify the chemical composition of the basic formula for slime to maximize its "bounce factor."
Organic chemistry is the study of the molecules that are necessary for life to exist. The key ingredient for these molecules is carbon, which is able to form complex structures and allows for the variety of different molecules in living things. This pathway provides resources for undestanding the basic rules that are used to categorize these different molecules.
This 12-minute video lesson discusses acetic acid to acetyl chloride mechanism. They can be generalized to forming any acid halide from a carboxylic acid. [Organic Chemistry playlist: Lesson 69 of 73].
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.
This 13-minute video lesson considers the addition of Water (Acid-Catalyzed) Mechanism. [Organic Chemistry playlist: Lesson 29 of 73].
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.
This 9-minute video lesson looks at the properties of alcohol. [Organic Chemistry playlist: Lesson 46 of 73].
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.