Search Results
Showing results 1 to 20 of 35
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-446.jpg?itok=tNcvtVqR)
Blind Spot
Source Institutions
In this activity, learners conduct a simple test to find their blind spot.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-553.png?itok=mvzMy30d)
Beyond Dominoes: Polyominoes
Source Institutions
In this activity, learners add squares to paper dominoes to make polyominoes.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-557.png?itok=vQ1X7kdB)
Exploring a Complex Space-Filling Shape
Source Institutions
In this activity, learners build a paper stellated rhombic dodecahedron, a three-dimensional 12-pointed star.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-552.png?itok=PTaxjG5R)
Stride Ruler
Source Institutions
In this activity, learners use their feet to estimate distances. Learners calculate the distance of one step in centimeters by measuring 10 steps at a time to reduce measurement error.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-691.gif?itok=vGNSc8W1)
Percentage of Oxygen in the Air
Source Institutions
In this activity, learners calculate the percentage of oxygen in the atmosphere by using steel wool's ability to rust.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-498.jpg?itok=XfwT9bP_)
Critical Angle
Source Institutions
In this optics activity, learners examine how a transparent material such as glass or water can actually reflect light better than any mirror.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-555.jpg?itok=59FI4jmQ)
Scaling Cubes
Source Institutions
In this activity, learners explore scale by using building cubes to see how changing the length, width, and height of a three-dimensional object affects its surface area and its volume.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-704.jpg?itok=ErqOpMqy)
Soap-Film Interference Model: Get on our wavelength!
Source Institutions
By making models of light waves with paper, learners can understand why different colors appear in bubbles.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-210.jpg?itok=SFoYG7BL)
Black Magic (Color Chromatography)
Source Institutions
With a coffee filter, a black marker, and a cup of water, discover the secret colors hidden in black ink.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-204.gif?itok=CTPPgIar)
Mold Terrarium: What Grows on Leftover Food?
Source Institutions
This activity shows you how to make a mold terrarium using a jar and leftover food.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-072.jpg?itok=U5YZF-ko)
Coupled Resonant Pendulums
Source Institutions
In this activity, learners discover that two pendulums suspended from a common support will swing back and forth in intriguing patterns, if the support allows the motion of one pendulum to influence t
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-714.gif?itok=cN5RyrOU)
A Stand-up Egg
Source Institutions
In this science trick, learners get an egg to stand-up on its long-axis vertical to a table's top.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-760.jpg?itok=Wdp75uRe)
Disappearing Glass Rods
Source Institutions
In this optics activity, learners discover how they can make glass objects "disappear." Learners submerge glass objects like stirring rods into a beaker of Wesson™ oil to explore how the principles of
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-707.jpg?itok=KE2PHeFp)
Earth Walk
Source Institutions
In this hands-on and feet-on excursion, learners take a science walk to visualize the planet's immense size and numerous structures, without the usual scale and ratio dimensions found in most textbook
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-681.jpg?itok=Fhzd3Jvk)
Magnetic Shielding: Magnetic lines stop here
Source Institutions
Testing magnets is always a fun pastime, but here, we're going beyond "will it attract the magnet?" In this activity, learners will investigate which materials allow magnetic fields to pass through or
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-668.jpg?itok=oXikYmqj)
Eyedropper Hydrometer: Buoy your understanding of density
Source Institutions
Build a hydrometer (measures the density of a liquid) using a pipet or eyedropper.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-686.gif?itok=TTf15U6W)
Physical Change
Source Institutions
In this activity, learners use heat to separate zinc and copper in a penny. This experiment demonstrates physical properties and how physical change (phase change) can be used to separate matter.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-556.png?itok=LxhdP0_v)
Exploring Tessellations (Grades 6-8)
Source Institutions
In this activity, learners design unique tiles and make repeating patterns to create tessellations. This activity combines the creativity of an art project with the challenge of solving a puzzle.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-828.gif?itok=WElXs4sV)
Paper Airplanes
Source Institutions
In this activity, learners explore the properties of paper by constructing and modifying paper airplanes.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-719.gif?itok=L9UJrPKx)
Inverted Bottles
Source Institutions
In this activity, learners investigate convection by using food coloring and water of different temperatures.