Search Results
Showing results 181 to 200 of 320
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-420.jpg?itok=KUg4QWAe)
Plastics the Second Time Around
Source Institutions
In this activity, learners test and compare the physical properties of thermoplastic polymers. Learners compare different plastics based on their color, degree of transparency, texture, and density.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-232.jpg?itok=XFmttdNW)
Can Crushers
Source Institutions
In this activity, learners conduct an experiment by heating an aluminum can filled with water to investigate air pressure.
![](/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-000-000-002-497.jpg?itok=D_Wc-lFz)
Ice Cream
Source Institutions
In this chemistry activity, learners use the lowered freezing point of water to chill another mixture (ice cream) to the solid state.
![](/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-000-000-003-385.jpg?itok=zrcFkcsc)
Fly a Hot-Air Balloon
Source Institutions
Learners assemble a hot-air balloon from tissue paper. The heated air (from a heat gun) inside the balloon is less dense than the surrounding air and causes the balloon to float.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-733.gif?itok=iy10y1nN)
Cake by Conduction
Source Institutions
In this demonstration, cook a cake using the heat produced when the cake batter conducts an electric current.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-005-317.jpg?itok=PxDhHaFw)
DIY Elephant Toothpaste
Source Institutions
In this activity, learners will experiment with catalysts to create an at-home version of elephant toothpaste.
Properties of Metals
Source Institutions
In this activity, learners explore the properties of metals at four stations. The stations include A) Magnetism and Breakfast Cereal; B) Conductivity of Metals; C) Alloys; and D) Metal Plating.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-821.jpg?itok=xhqdmOQS)
Bake Ice Cream in Your Oven
Source Institutions
In this a hands-on activity, learners explore how to put ice cream in an oven without it melting. Ideas in this activity include insulation and cooking.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-643.jpg?itok=sKLTLgt6)
Luminescence
Source Institutions
In this two-part activity about luminescence, learners explore the chemistry that happens inside glow sticks and other light producing reactions.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-155.gif?itok=3oMQPTAQ)
The Carbon Cycle: How It Works
Source Institutions
In this game, learners walk through an imaginary Carbon Cycle and explore the ways in which carbon is stored in reservoirs and the processes that transport the carbon atom from one location to another
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-657.gif?itok=zRza9aCl)
What's the Angle?
Source Institutions
This activity helps learners understand how the angle of the Sun affects temperatures around the globe.
![](/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-000-000-003-408.jpg?itok=8LLsT8CA)
Gelatin Used for Drug Delivery
Source Institutions
In this activity, learners discover how gelatin can be used as a medium for drug delivery. Learners create colored gelatin and then cut out pieces of the gelatin to simulate medicine (pills).
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-068.jpg?itok=g9IRcnkn)
Cold Metal
Source Institutions
In this activity, learners discover that our hands are not reliable thermometers.
![](/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.