Curated OER
The Effects of Over Exposure to Ultraviolet Radiation on the Growth of Plants and Bacteria
Students investigate the effects of UV light and ozone on plant and bacteria growth. In this ultraviolet light and ozone lesson plan, students grow bean and mustard greens to study the effects of UV light and ozone on the plant growth....
Chemistry Teacher
Metals, Nonmetals, and Metalloids Lab
What an exciting way to introduce your blossoming chemists to the world of metals, nonmetals, metalloids, and polymers! Here is a lab activity that is designed to allow pupils the opportunity to visualize the reaction of metals,...
Cornell University
What Happens When We Excite Atoms and Molecules?
Excited atoms lead to exciting lessons! Learners use heat and light to excite both atoms and molecules. They display their learning in the form of Bohr models depicting the excited state of the atoms.
Curated OER
Flame Tests
Students perform flame tests on 12 elements. In this flame tests lesson plan, students experiment with elements to observe their visible light spectra emitted as electrons jump from one energy level to another. Students record their...
Pingry School
Flame Tests
Light a fire in your pupils! Scholars conduct a flame test and observe the emission spectra of several different salts in an enlightening hands-on investigation. They use their observations to make comparisons and conclusions about the...
Curated OER
Heating Ice: The temperature of ice and water when heated
Seventh graders read and follow the instructions on the worksheet. They make a table of their results. Students use about 100 cm^3 of water and ice mixture. They heat the water/ice with a Bunsen burner. Temperature is recorded every 30...
Curated OER
Heating of Water: Water Vapour
Seventh graders read the directions printed on their worksheet and follow them carefully. They set up a beaker with a tripod and Bunsen burner under it. They record the temperature of water every 30 seconds. Students graph the data and...
It's About Time
Identifying Matter
High schoolers test wood splints that have been soaked in mystery solutions to identify the different colors it produces when lit. The lesson concludes with a reading passage and analysis questions.
Curated OER
Making a Surface Coating
Students prepare a nonaqueous surface coating by first making a polymeric resin and then adding an organic solvent. There product is a basic varnish that hardens by loss of organic solvent to the air. Students make a simple paint by...
Curated OER
Preparation of Triiodomethane (iodoform)
In this preparation of triiodomethane activity, students use propanone to prepare triiodomethane. Students use filtration and recrystallization in order to make the product. They determine the melting point using a melting point apparatus.
Curated OER
Chemical Sleuthing
Students engage in a lesson which includes flame tests and the construction of a simple diffraction spectrograph with which to measure sodium ion emissions. They use the Bragg equation to compute the wavelength of the line spectra produced.
Curated OER
Atomic Structure - Part A
Students describe the structure of atoms, including the particles that make them up. They recognize that key scientists and experiments have contributed to the changes
in the Atomic Theory.
Curated OER
Create Your Own Cloud
Students explore and analyze weather conditions, climates, compositions and characteristics of the atmosphere and weather patterns. They explain in detail the water cycle and its relationship to weather patterns. A lab experiment is...
Curated OER
Changes in Matter
Eighth graders, in groups, explain the difference between physical and chemical changes.
Curated OER
Air: Demonstrating Its Presence and Effects
Students explore the concept of air. In this gravity lesson, students perform various experiments that deal with gravity, air resistance, and air pressure.
Curated OER
Flame Test
Young scholars conduct a flame test on different substances. In this chemistry lesson, students predict the element present based on the color emitted during the flame test. They explain how different elements produce different colors.