Search Results
Showing results 101 to 120 of 213
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-765.jpg?itok=lK1KtGXi)
Afterimage
Source Institutions
In this activity about light and perception, learners discover how a flash of light can create a lingering image called an "afterimage" on the retina of the eye.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-229.png?itok=gHEBjInX)
Hang Time
Source Institutions
Learn how to make and fly a paper helicopter! This simple activity includes a template (for the copter "blades") and instructions for folding, flying, and testing designs.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-287.png?itok=Hw2XH9bw)
Phenakistascope
Source Institutions
In this optics activity, learners build an animation tool to make mini movies. When you spin a phenakistascope, the pictures move so quickly that your eyes and brain can't separate the images.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-088.jpg?itok=5dKesYKF)
Turning the Air Upside Down: Convection Current Model
Learners see convection currents in action in this highly visual demonstration. Sealed bags of colored hot or cold water are immersed in tanks of water.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-717.png?itok=Yo54VM0u)
Think Fast!: Just How Quick Are You?
Source Institutions
This is an activity about reaction times. Just how quickly must an NHL goalie respond to save a shot, and how does your reaction time compare?
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-510.jpg?itok=yzj5VN3g)
Convection Demonstration
Source Institutions
In this quick activity (located on page 2 of the PDF under GPS: Balloon Fiesta Activity), learners will see the effects of convection and understand what makes hot air balloons rise.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-275.jpg?itok=eIDujwUZ)
A Universe Without Supernovae
Source Institutions
This fun and simple hands-on astronomy activity illustrates the value of supernovae in the universe.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-442.jpg?itok=eyBeGQrA)
Symmetry Fold-Overs
Source Institutions
In this math activity, learners experiment with the concept of symmetry.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-358.jpg?itok=vlj9xW7P)
Design a Submarine
Source Institutions
Learners act as engineers and design mini submarines that move in the water like real submarines.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-005-490.jpg?itok=Fz0FEC6m)
Static Water
Source Institutions
In this activity, learners will use static elecricity to bend a stream of water without touching it. Learners will explore physics and cause and effect through this activity.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-416.jpg?itok=HYqgZVka)
Shrinking Polymers
Source Institutions
In this activity, learners discover that some plastics will shrink when you get them hot. Learners bake polystyrene in a regular oven and discover what happens.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-124.png?itok=d3rta_uj)
Make a Shaker
Source Institutions
This hands-on activity shows you how to make a shaker -- a small instrument with a big sound! Fill it with beads or even pennies for a cool sound.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-222.png?itok=fyRY1NC8)
Stack 'Em Up
Source Institutions
In this simple and fun activity, learners build a tower of cups to explore distribution of weight. Learners make predictions about their towers and test their designs.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-126.jpg?itok=7wh7ZFkn)
Sound Sandwich
Source Institutions
With a straw, two craft sticks, and some rubber bands, construct a noisemaker called a Sound Sandwich and explore how vibration produces sound.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-740.png?itok=n8_gqx97)
Generating and Recording Data
Source Institutions
In this math activity, learners use a "function machine" to collect and organize simple data. The function machine in this case is a cardboard box and the input/output data are paper fish.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-209.png?itok=L4CI__ys)
Screaming String Thing
Source Institutions
In this simple and fun activity, learners discover the relationship between vibration and sound by making a squeaky toy instrument out of simple household materials.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-629.jpg?itok=xR-TwGNa)
Liquid Lens
Source Institutions
In this activity, learners discover that they can create a lens from a water drop. Learners test their lens by looking at words or pictures.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-225.jpg?itok=gxrPZbUz)
Thrown For A Curve: Pitch Like A Big Leaguer
Source Institutions
You may have tried to throw a curveball or a slider, or even a screwball, with an ordinary baseball and found it difficult to do.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-790.jpg?itok=rfI4RZoG)
You're Grounded
Source Institutions
In this engineering activity, learners test the stability of towers they build out of cups, discovering that structures with more mass in the base are more stable.
![](/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.