American Chemical Society
Recrystallization Test
Crystallize the answer to the question that has been investigated since the first of four lessons: What is the unknown crystal? Pupils have examined, crushed, and dissolved four samples plus an unknown as an exploration of the properties...
Curated OER
Preparation of Triiodomethane (iodoform)
In this preparation of triiodomethane worksheet, 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.
American Chemical Society
Solubility Test
Make sure to consult the teacher's handbook, Inquiry in Action - Investigating Matter Through Inquiry, for two demonstrations that can be done to introduce solubility and measuring crystal mass before having the class conduct this...
Curated OER
Mystery Minerals
Students minerals and how they form. They investigate the classification of minerals according to physical properties. Students watch a video about mineral characteristics. In groups, students participate in hands-on activities and...
Curated OER
Let's Take a Rock Apart!
Students examine a crushed rock and sort the minerals they find in that rock by color and other properties.
Curated OER
Sculptured Landscapes
Students research glaciers, how they are formed and what kind of landforms they carve out of the rock they pass over. They organize their findings into a mock newscast in a presentation for the class.
Curated OER
Mystery of the Megaflood
Students will use everyday items and speeds to describe the dimensions of a massive flood that occurred in the Pacific Northwest near the end of the last ice age.
Curated OER
Unsaturated, Saturated and Supersaturated
Students investigate unsaturated, saturated and supersaturated solutions. In this solutions lesson plan, students experiment with sodium acetate and produce three different types of solutions including a saturated solution of sodium...
Curated OER
Lesson 1 - What Are Fossils?
Young scholars define and research fossils. In this fossil activity, students access teacher assigned Internet sites to examine images of fossils. They determine the definition of a fossil and find out how fossils are formed. They also...
Curated OER
A Rock’n Earth
Seventh graders identify the three types of rocks. In this earth science lesson, 7th graders model the rock cycle using crayon shaving. They explain how rocks change as they go through the cycle.
Curated OER
Shake, Rattle and Roll
Students compare the weathering of different-sized materials. Comparisons are made and data analyzed to reach conclusions about the process of weathering. Applications can be made for the higher grades.
Curated OER
Fairly Simple Rock Identification
Young scholars study ways in which to identify rocks. They complete a number of activities that introduce them to various ways of identifying minerals in rocks.
Curated OER
Rock Crystallization
Students determine the differences between the crystallization of igneous and metamorphic rocks. They examine both liquid state and solid state crystallization.
Curated OER
Let's Take a Rock Apart
Students take a crushed rock and sort the remains of the rock minerals into different categories based on the different properties. In this sorting lesson plan, students learn what makes up a rock and how to sort something into categories.
Curated OER
Shake, Rattle and Roll
Students compare the weathering of materials. in this weathering lesson plan, students experiment with the chemical and physical weathering of different materials. Students use salt and water as an example of how weathering occurs.
Curated OER
Pangaea Puzzle
Students explore plate tectonics and the formations of the Earth's surface and why maps are distorted. In this Earth's surface lesson plan students complete a lab and answer questions.