Investigating the Water Cycle

Earth ecoSTEM Kit Materials Used: Hubbard Scientific Water Cycle Model

ENGAGE - Students Observe This Phenomenon

GATHER

GATHER Energy Investigations

REASON

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EXPLORE a Kit-Supported Learning Experience

Students will use the Hubbard Scientific Water Cycle Kit to create a working model of the water cycle, driven by the sun, including all three physical states of matter and changes of state (processes). Note: a heat lamp (or lamp with incandescent bulb) and ice are needed, per directions.

EVALUATE

Students should be able to  draw and label the water cycle processes and identify the two major forces or factors that drive the cycle. (Hints: Without these forces, the processes would stop. What adds energy to the system and makes evaporation happen? What makes water flow downward?)

ELABORATE

Students should be able to identify all the processes in this different, unnarrated NASA phenomenon video.

This diagram from NOAA and this explainer video from NASA  will introduce vocabulary for the processes, in context.

EXTEND

Students may view this video on the use of shade balls in a Los Angeles reservoir and then diagram how the balls disrupt the water cycle and limit chemical reactions in water treated with chloride. In addition, students may revise their cycle drawings to show anthropogenic impacts.

COMMUNICATE

Revised EXPLANATION

After making sense of a core idea by engaging in science or engineering practices through the lens of crosscutting concepts, students revise their original explanations of a phenomenon.

EMPOWERMENT

Students will design a tree planting project since tree roots reduce erosion and trees store water as part of the water cycle.