Search Results
Showing results 241 to 260 of 485
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-779.jpg?itok=2gtZWZAU)
Who Dirtied The Water?
Source Institutions
In this activity, learners receive a labeled plastic film canister containing a material representing a pollutant (i.e. pencil shavings = a beaver's wood chips).
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-403.png?itok=DS9m_YX_)
Lilliputian Landscaping
Source Institutions
In this activity, learners examine the different materials gardeners add to their soil, and discuss how these materials are important for plant growth.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-365.png?itok=QeRSdqbT)
Wind Works!
Source Institutions
Learners will build and experiment with their own windmills made from simple household materials.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-122.gif?itok=4sTtQDK5)
Updrafts in Action
Source Institutions
In this weather activity/demonstration, learners watch as a ping pong ball is suspended in a stream of air supplied by a hair dryer.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-136.jpg?itok=IZPSydOx)
We all Scream for Ice Cream
Source Institutions
In this activity, learners observe how salinity affects the freezing point of water by making and enjoying ice cream.
What Does Life Need to Live?
Source Institutions
In this astrobiology activity (on page 11 of the PDF), learners consider what organisms need in order to live (water, nutrients, and energy).
Building a Community From the Ground Up
Source Institutions
In this activity, a group of learners work collaboratively to design and construct a paper model showing the evolution of an environment through multiple stages, from prehistory through the modern cit
Hazardous Chemicals in Your Neighborhood
Source Institutions
In this environmental science lesson, learners will examine hazardous chemicals and their effects on human health and the environment.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-326.jpg?itok=toqnVUAO)
Solar Water Heater
Learners work in teams to design and build solar water heating devices that mimic those used in residences to capture energy in the form of solar radiation and convert it to thermal energy.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-388.jpg?itok=unfoQNRe)
Trash Talkin'
In this activity, learners collect, categorize, weigh and analyze classroom trash and discuss ways that engineers have helped to reduce solid waste.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-405.png?itok=XvApTdyE)
Illuminating Luminescence
Source Institutions
In this activity, learners compare and contrast different forms of luminescence by observing how chemiluminescence, phosphorescence, and fluorescence produce or emit light.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-363.png?itok=N-7PYah7)
Let's Make Molecules
Source Institutions
In this activity, learners use gumdrops and toothpicks to model the composition and molecular structure of three greenhouse gases: carbon dioxide (CO2), water vapor (H2O) and methane (CH4).
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-684.jpg?itok=u38WOkow)
Investigating and Using Biomass Gases
Source Institutions
In this activity, learners will be introduced to biomass gasification and will generate their own biomass gases.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-800.jpg?itok=mNB8TUR1)
Determining the Amount of Transpiration from a Schoolyard Tree
Source Institutions
In this activity, learners calculate the number of milliliters of water a nearby tree transpires per day.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-110.png?itok=JIU6fpbG)
House Warming
Source Institutions
In this physical sciences activity, learners explore how passive solar design increases energy efficiency.
Haunted by Hurricanes: Use Data to Learn About Hurricanes
Source Institutions
In this activity, learners will determine if the frequency and intensity of hurricanes are changing using real data from the National Hurricane Center.
The Return of El Nino
Source Institutions
In this activity related to climate change and data analysis, learners examine temperature and precipitation data to determine if climate variations are due to El Niño.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-104.png?itok=5OKbZxPD)
Breaking Point
Source Institutions
In this activity, learners build penetrometers to test leaf toughness. Biologists measure leaf toughness to study the feeding preferences of insects and bugs.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-529.gif?itok=n1Zt3RLL)
Rainbow in the Room
Source Institutions
This activity generates learner excitement about light through the creation of a room-sized rainbow.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-125.jpg?itok=dhepv1gK)
It's the "Rain," Man
Source Institutions
In this weather forecasting activity, learners use common materials to construct a rain gauge and measure daily, monthly, and yearly rainfall.