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Leaf Stomata as Bioindicators of Environmental Change
Students, in this experiment, collect leaves from two species of trees and the stomatal index on the upper and lower epidermis of each leaf be determined.
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Leaf Stomata as Bioindicators of Environmental Change
Students perform an experiment to determine the stomaltal index on the upper and lower epidermis of two species of leaves. Stomatal densities change in response to changing atmospheric levels of carbon dioxide and to annual rainfall.
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'Round and 'Round it Goes!
Students discuss and interpret background knowledge on poster copy given on the water cycle. Students complete the included activity sheets using the poster as a reference in small groups. Students identify and name where water can be...
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Exploring the Water Cycle
Students investigate the water cycle. In this water cycle instructional activity, students create an ecosystem within a 2-liter bottle. Students record scientific observations as they observe the water cycle within their ecosystem.
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Water Supply
Fourth graders complete three activities. In this water supply lesson, 4th graders learn that water can exist in different forms and watch a demonstration of each form. Students explore the water cycle and make a water cycle using the...
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Water Cycle
Young scholars identify the different stages in the water cycle. In this earth science instructional activity, students calculate the residence time of water in oceans using a mathematical formula. They explain how this cycle regulates...
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PLANT PARTS WE EAT
Students identify an assortment of vegetables and learn how to locate the parts humans use for food. Students identify the plant parts we eat. Students color the pictures on their worksheets as provided. Students match the plants to the...
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Aquatic Communities
Students watch a video about aquatic communities. They conduct an experiment that shows how movement of rivers change the landscape. They compare fresh and salt water communities and its wildlife.
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How Does a Green Plant Grow?
Students examine how a seed grows, and design an experiment to explore this concept. They make predictions, conduct the experiment, record the results, and interpret the results.
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The Atmosphere and Flight
Students investigate evaporation and condensation, and apply the concepts to understanding cloud formation.
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The Water Cycle--Model Simulation
Students build a model to simulate parts of the water cycle. They recognize and explain the essential elements of the water cycle.
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The Water Cycle
Students are introduced to the components and importance of the water cycle. They are shown how groundwater moves using a model. Students list 9 places on earth where water is found. They define the terms cycle and water cycle.