National Nanotechnology Infrastructure Network
Synthesis and Characterization of CdSe Quantum Dots
Does the size of a sample change the physical properties of that substance? It turns out it can! Young scientists combine physics and chemistry to synthesize CdSe quantum dots and record their color properties. Learners should notice a...
Curated OER
Alcohol and Pregnancy Don't Mix!
Seventh graders learn about John Kellerman, a youngster who was born with Fetal Alcohol Syndrome. They learn how alcohol and pregnancy doesn't mix.
Curated OER
Clear Day, Cloudy Day; Weather, Cloud Types and Formations
Students explore the formation of clouds and different cloud types. Students simulate a cloud formation within a bottle.
Curated OER
Enzyme Practice Sheet Key
In this enzyme worksheet, students solve 6 problems including questions about how enzymes work, graphs of the relationship between enzyme and substrate and structures of enzymes.
Curated OER
It's Just Right
Students conduct an experiment to determine the temperature tolerance of yeasts. In this biology lesson, students collect data and compare them by plotting graphs. They explain how extreme temperatures affect organisms.
Curated OER
Periodic Motion - The Pendulum
Students study the concept of periodic motion and relate it to the movement of a pendulum. They discover that the period of a pendulum is dependent on the length of the pendulum and independent of the bob and the amplitude.
Curated OER
Diversity
Students access prior knowledge of the five senses and relate to students with disabilities. In this people with disabilities lesson, students research and use a Venn diagram to compare and contrast famous people and their...
Curated OER
Periodic Motion - The Pendulum
Students experiment to determine the period of a pendulum. In this periodic motion instructional activity, students use different pendulums to determine their periods. They use various amplitudes to determine its effects on the period.
Curated OER
Enzymes Help Us Digest Food ~ Introduction to Sugars and Enzymes
After an explanatory introduction to sugars and enzyme activity, biochemists discover whether lactase is needed to digest lactose, sucrose, and milk as a whole. High school science lab skills are required for these investigations.
Curated OER
Photosynthesis
Students conduct experiments with plants. In this photosynthesis instructional activity, students examine plants under different types of lights. They calculate the amount of dissolved ocygen concentration and compare it to the formula...
Cornell University
Atomic Bonding
Explore the connection of surface area to bonding within atoms. Learners complete lab investigations to model changing surface area with different sizes and concentrations of atoms. A flour fireball demonstration follows the labs to...
Curated OER
Salt Bridges
In this chemistry worksheet, students examine the salt bridge in order to apply in the laboratory setting. The sheet includes in depth background information.
Curated OER
Kinetics of Acid
In this chemistry worksheet, students examine the given concept in order to apply in the laboratory setting. The sheet includes in depth background information.
Curated OER
Dilution and Concentration of Solutions
Future chemists practice laboratory techniques by creating a monochloramine solution. The objectives are to use of dilution, 9concentration, and measurement skills and to prepare a solution that will be used in a water treatment...
Curated OER
Lead and Mercury Ion Catalase Inhibition
Students participate in a laboratory investigation in which they observe the effect of temperature and pH on enzyme activity. Students also examine exposure to heavy metal ions and the effect that may have on enzyme activity.
Curated OER
The Physics of Sports: An 8th Grade Physical Science Project
Explore the relationship between sports and physics in a cross-curricular lesson. Middle and high schoolers prepare a multimedia presentation based on a chosen sport. They answer five physics vocabulary questions about how the laws of...
Virginia Department of Education
Determining Absolute Age
How can radioactive decay help date old objects? Learners explore half-life and radioactive decay by conducting an experiment using pennies to represent atoms. Young scientists graph data from the experiment to identify radioactive decay...
Curated OER
Motion Problems
In this motion instructional activity, students complete motion word problems where they explain and define issues having to do with motion. Students complete 32 problems.
Cornell University
Bacteria Take Over and Down
Bacteria outnumber all other forms of life on Earth. Scholars observe the growth of bacteria in petri dishes to understand their role in maintaining good health. Then, they observe the growth of bacteria after they introduce...
Howard Hughes Medical Institute
Ocean Acidification
Human impacts on the environment can sometimes be difficult to measure, especially under water! An activity centered on ocean acidification gives science scholars the opportunity to examine the effects of carbon dioxide on marine life....
Cornell University
Math Is Malleable?
Learn about polymers while playing with shrinky dinks. Young scholars create a shrinky dink design, bake it, and then record the area, volume, and thickness over time. They model the data using a graph and highlight the key features of...
Curated OER
Physical and Chemical Changes Crossword
In this chemistry worksheet, students complete a crossword puzzle with 15 clues about both physical and chemical changes. Each clue lists number of letters for correct word.
Curated OER
Answers for Physical and Chemical Changes Crossword
In this chemistry worksheet, students are provided with the answers for a crossword puzzle containing 15 clues about physical and chemical changes.
Curated OER
Enzyme Action
Students work with models of substrates and of enzymes and test the digestion of lactose with lactase. They determine if digestion of lactose has or has not occurred.
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