Search Results
Showing results 1 to 10 of 10
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-549.jpg?itok=ZGrjAcDQ)
Modeling Day and Night
Source Institutions
In this activity (on page 1 of the PDF), learners make a "mini-globe" to investigate the causes of day and night on our planet.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-481.png?itok=2op932X0)
Drain Game
Source Institutions
In this activity (on pages 36-39), learners make a model of a watershed out of paper, then run water down the mountain to simulate how rainfall and pollution affect watersheds.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-519.png?itok=Jm5Ed5iy)
Water Clean-up
Source Institutions
This is an activity (located on page 3 of the PDF under Water Clean-up Activity) about the use of reduction agents to decontaminate ground water.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-650.gif?itok=icGlDqOX)
Gel Electrophoresis
Source Institutions
In this activity, learners simulate the process of DNA fingerprinting by using electricity to separate colored dyes.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-324.png?itok=goodTb_C)
Flower Powder
Source Institutions
In this outdoor activity, learners use artificial bees and paper models of flowers to find out how bees transfer pollen from one flower to another.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-535.png?itok=7sKh2tES)
Reason for the Seasons
Source Institutions
In this activity (on page 6 of the PDF), learners plot the path of the sun's apparent movement across the sky on two days, with the second day occurring two or three months after the first.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-031.jpg?itok=lHKryiyE)
Looking Back Through Time
Source Institutions
In this activity, learners create their own archaeological profiles.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-407.png?itok=NxG01sIV)
Stream Table
Source Institutions
In this activity, learners use aluminum trays and wooden blocks to form stream tables to investigate river formations in two different landscape scenarios.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-367.jpg?itok=zLSxZCjZ)
Exploring an Ecosystem
Source Institutions
In this ecology activity, learners make a model water-based ecosystem called a terraqua column. The column (in a large soda bottle) includes pond water, duckweed, sand or gravel, and small snails.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-514.jpg?itok=XEGhzeVt)
Model Well
Source Institutions
In this quick activity about pollutants and groundwater (page 2 of PDF under Water Clean-up Activity), learners build a model well with a toilet paper tube.