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Showing results 1281 to 1300 of 2059
When is a Glass of Water Really Full?
Source Institutions
In this activity, learners see how many coins they can add to a full glass of water before the water overflows.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-004.png?itok=2oVvHgkJ)
A Feast for Yeast
Source Institutions
In this activity on page 6 of the PDF (Get Cooking With Chemistry), learners investigate yeast. Learners prepare an experiment to observe what yeast cells like to eat.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-633.gif?itok=WaFFPUY5)
Carbon Configurations
Source Institutions
In this activity, learners use geometry to predict the shape of carbon. Learners twist and attach chenille stem pieces that represent bonds between different carbon atoms.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-155.png?itok=QyrTOqS_)
Cool It!
Source Institutions
In this fun hands-on activity, learners use simple materials to investigate evaporation. How can the evaporation of water on a hot day be used to cool an object? Find out the experimental way!
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-285.jpg?itok=6iz8Z3jm)
Make a Mobile!
Source Institutions
In this activity, learners make mobiles to explore the concepts of balance, counterbalance, weight, and counterweight.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-346.jpg?itok=qkFnAYhm)
Hit the Spot!
Source Institutions
This is a hands-on activity about the physics of tennis. Learners will discover that physics plays a big part in tennis, no matter what their skill level might be.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-394.jpg?itok=2ISL58BM)
Neuron Chain Tag
Source Institutions
In this outdoor activity, learners play a game of Tag to discover how neurons attach themselves to each other to form a chain.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-078.jpg?itok=xbxst93a)
Hot Stuff!: Investigation #2
Learners test two jars containing hot water, one covered with plastic and one open, for changes in temperature.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-525.gif?itok=rr8BYLdL)
Finding the Size of the Sun and Moon
Source Institutions
In this activity, learners build a simple pinhole viewer. They use this apparatus to project images from a variety of light sources, including a candle, the Sun, and the Moon.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-243.png?itok=mZfX0F2d)
Changing Body Positions: How Does the Circulatory System Adjust?
Source Institutions
In this activity about how the body regulates blood pressure (page 117 of the PDF), learners make and compare measurements of heart rate and blood pressure from three body positions: sitting, standing
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-460.jpg?itok=4l5PmLdO)
The Great Toss Off!
Source Institutions
In this math game, learners toss plastic cups to land just right and collect points to win.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-419.jpg?itok=NjI-M0m-)
The Ins and Outs of Tides: Learn About Causes and Predictions
Source Institutions
In this activity, learners will compare predicted and observed tides using data from The National Oceanic and Atmospheric Administration(NOAA).
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-900.jpg?itok=fRZuTu_e)
Mechanical Madness
Source Institutions
In this online Flash game, learners test their engineering know-how, moving a collection of mechanical parts onto a board to make complete a system of parts that will move a ball from start to finish.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-093.jpg?itok=i2hZi5v0)
New Boxes from Old
Source Institutions
Learners determine the surface area and volume of two identical boxes, and then figure out the dimensions of a cubical box with the same volume.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-674.jpg?itok=Xaq65pjk)
Head Harp
Source Institutions
Put a string around your head, and play it! Learn about vibration, sounds, and pitch.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-536.png?itok=U3nUVJfu)
Bird Watch
Source Institutions
In this group or individual activity, learners are encouraged to watch birds near home or school—possibly where birds are nesting in a tree, pecking in a park, feeding from a feeder, or flying through
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-725.gif?itok=zdVEcvCV)
Simple Spinner
Source Institutions
In this activity, learners create a tiny electric, motorized dancer. Learners use the interactions of magnetism and electric current to make a wire spin, while displaying the Lorentz Force in action.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-106.png?itok=9qMcSGQG)
Parachute Parade
Source Institutions
In this engineering activity, learners design parachutes to give toy figures safe landings. This activity is great for practicing an important STEM skill--changing only one variable at a time.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-005-315.jpg?itok=FJqzQi0o)
Expanding Balloon Universe
Source Institutions
In this activity, learners will discover how our universe is continuously expanding.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-731.jpg?itok=VbHohTWF)
Light Soda
Source Institutions
In this activity, learners sublimate dry ice and then taste the carbon dioxide gas.