Curated OER
Properties of Liquids
Students describe properties of liquids and use descriptive language as a springboard to develop precise vocabulary for properties of liquids. They also use vocabulary as practiced with liquid-vocabulary card games. Finally, students...
Curated OER
Rocks, Minerals, and Erosion
Fourth graders describe the difference between minerals (composed of the same substance throughout) and rocks (composed of two or more minerals). They recognize that there are three classes of rocks: igneous, sedimentary, and metamorphic
Curated OER
Pet Rocks
Students complete a variety of activities related to the physical characteristics of minerals. They classify and group candy, classify rocks and complete a Pet River Rock worksheet. Students try to guess which rock goes with each...
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Mohs Hardness Test
Fifth graders listen as they are told about another way to classify rocks; by their hardness. They observe the Mohs Hardness Test overhead, discover how the test works, and then use materials such as pennies, butter knives, nails, and...
Curated OER
Introduce Solids
Middle schoolers identify and interpret a variety of solid materials - cloth, wood, metal, plastic, paper, and rubber. After a period of free exploration, they then describe the properties of the objects and develop vocabulary in order...
Curated OER
Liquids in Bottles
Students investigate different liquids to develop their concept of a liquid. They work at a center to tip, swirl, shake, roll, and otherwise investigate seven liquids in small, clear plastic bottles: plain water, corn syrup, liquid...
Curated OER
Solids and Water
Students investigate mixtures made of water and familiar solid materials. They observe and discuss the changes that occur immediately and set the mixtures aside for a day. Finally, students observe the mixtures, note changes, and graph...
Curated OER
The Principles Of Composting
Students put items in a plastic bag and watch the effects of composting. While completing the experiment, students answer questions and ask permission to start their own compost pile at home.
Curated OER
Stratigraphy and Cross-Dating
Students interpret archaeological strata using the law of superposition. They apply cross-dating to determine the age of other artifacts.
Curated OER
Solids in Bottles
Young scholars use funnels to put the five solid materials into clear bottles with caps. They observe how the particulate materials look, sound, and move when they shake and roll the bottle. Finally, students write "sound and touch"...
Curated OER
Composting "The Right Mix"
Students investigate the correct mix of material types for compost. In this composting lesson, students explore the correct amounts of different types of materials to create a compost heap. Students then create a compost heap.