Search Results
Showing results 141 to 160 of 280
![](/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).
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-596.jpg?itok=w7rKDEN5)
Air Cannon
Source Institutions
In this activity (page 1 of PDF under SciGirls Activity: Forecasting), learners will construct an air cannon by cutting a hole in the bottom of a bucket and stretching a garbage bag over the other end
![](/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-000-000-004-363.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-000-000-004-110.png?itok=JIU6fpbG)
House Warming
Source Institutions
In this physical sciences activity, learners explore how passive solar design increases energy efficiency.
![](/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.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-131.jpg?itok=iIuKV5TV)
That Sinking Feeling
Source Institutions
In this quick activity, learners observe how salinity and temperature affect the density of water, to better understand the Great Ocean Conveyor.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-555.png?itok=4R2HQIhe)
Nano Scavenger Hunt
Source Institutions
This is an activity (located on page 3 of PDF under Where's Nano? Activity) about identifying nanoscale objects and phenomena in today's world.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-685.jpg?itok=8eYi0dsJ)
Rain Machine (Solar Still)
Source Institutions
In this activity, learners work in groups to build simple solar stills filled with salt water. After the stills are complete, learners observe what happens when they place the stills in the sun.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-939.jpg?itok=fLm0ph07)
Working with Watermills
Source Institutions
In this activity, learners explore how watermills have helped harness energy from water through the ages.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-409.gif?itok=sKwBwR0O)
Catch a Wave: How Waves are Formed
Source Institutions
In this three-part activity, learners explore how waves are formed and why some waves are bigger than others. First, learners observe waves of water in a pan generated by an electric fan.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-168.png?itok=jTlscHSz)
Sound Mixer: A Multi-track Mixer of Animal Sounds
Source Institutions
This is a virtual representation of a sound mixer containing pre-looped sounds of animal, insect, and environmental noises.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-028.png?itok=Ck3Gk6_O)
Making Recycled Paper
Source Institutions
In this activity on page 11 of the PDF, learners follow simple steps to recycle old newspaper into new paper.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-092.gif?itok=3KJZOAZM)
How Animals Stay Warm
Source Institutions
In this quick activity, learners explore how blubber protects animals from the cold by making a "blubber mitt." Using cooking shortening, two zip-top sandwich bags, and duct tape, learners simulate bl
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-799.jpg?itok=JoRQSckw)
A Crayon Rock Cycle- Metamorphic
Source Institutions
This is part 2 of the three-part "Crayon Rock Cycle" activity and must be done after part 1: Sedimentary Rocks. In this activity, learners explore how metamorphic rocks form.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-141.jpg?itok=4vQT50OB)
Leaf it to Me
Source Institutions
In this activity, learners observe the effect of transpiration as water is moved from the ground to the atmosphere.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-579.jpg?itok=xbaNWE6H)
Vortex
Source Institutions
In this activity, learners create a tornado in a bottle to observe a spiraling, funnel-shaped vortex. A simple connector device allows water to drain from a 2-liter bottle into a second bottle.