Dye in Water

Developing a Model of Thermal Energy, Atoms, and Molecules

Grades:
6-8
Lesson Number:
2
Description:
Through a series of exploration and inquiry activities, students will explain kinetic molecular theory, atomic, and molecular structures. Students will be challenged to gradually increase the precision of their explanation of molecular-level structures and...
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Learning Goal(s):
Students will develop a model through collaborative inquiry to explain thermal kinetic energy and predict the outcome when heat is added to a substance. Students will build argumentation from evidence skills through collaborative sense-making and gallery walk presentations. Students will develop a model of atomic and molecular structures.  
Author:
Melody Childers
Relevant NGSS PE:
Estimated Activity Length:
9 hours
Solar Updraft Tower

Solar Updraft Towers Unit Overview

Grades:
3-8
Description:
Students will combine research, direct observations, and hands-on investigation to lead them into an engineering design project involving the construction of a solar updraft tower. During this process, students will make references to specific phenomena they...
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Learning Goal(s):
Students will understand ten renewable and non-renewable energy sources on the earth.Students will learn the locations of different energy sources on the earth.Students will learn the history of energy sources and how humans have used them.Students will learn about innovations and inventions used to find, recover, store, and release energy for human consumption.Students will understand that hot air risesStudents will understand why hot water and hot air rise and cold air and cold water sink.Students will learn that wind is produced by warm air rising and cold air sinking.Students will learn that the energy of moving hot air can be converted into other forms of energy.Students will understand that energy from the sun can be converted into heat.Students will discuss the effects of the chimney stack phenomenon.Students will understand that wind energy can be converted into other forms of energy.Students will determine different methods to increase the effectiveness of a wind turbine blade by harnessing and converting the mechanical energy of the wind.Students will determine that thermal energy resulting from the sun’s radiation can create an updraft that will power a turbine to spin.                                       Students will identify characteristics of turbine design that improve the success of their device.Students will utilize content from previous phenomena they investigated, such as the chimney stack effect and Norwegian candle toys, to determine how to best harness the energy transformed by their device from the sun.Students will be able to define and explain what a solar updraft tower is.Students will make connections between their previous engineering challenge and a real world solution to the world’s growing energy demands.
Author:
Lisa Morgan
Estimated Activity Length:
10 hours
SODIS_UV Treament

Solar and SODIS: Creating Clean Water for the World

Grades:
5-8
Description:
According to Nobel Laureate Richard Smalley, the number one and two challenges for humanity are energy and clean water. This classroom activity will introduce students to a low cost, renewable technique that connects these two issues. During the activity,...
Energy Content:
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Learning Goal(s):
Students will be introduced to the range of microbes in the environment, understand the risks of “dirty water” and be able to explain how energy from the sun can purify water through the SODIS technique.
Author:
Jamie Repasky
Estimated Activity Length:
1 hour