Search Results
Showing results 1 to 20 of 30
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-381.jpg?itok=Cl7PdKew)
Latent Prints
Source Institutions
In this activity, learners examine fingerprints. Learners leave a hidden print on a surface and then make their own print detecting powder from graphite (found in pencils).
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-537.jpg?itok=FGJUV1YI)
Surface Area
Source Institutions
In this demonstration, learners discover that nanoparticles behave differently, in part because they have a high surface area to volume ratio.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-509.jpg?itok=T6Bq0Ggw)
Exploring Materials: Liquid Crystals
Source Institutions
In this activity, learners discover that the way a material behaves on the macroscale is affected by its structure on the nanoscale.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-234.jpg?itok=6-tWz7Co)
Salts & Solubility
Source Institutions
In this online interactive simulation, learners will add different salts to water and then watch the salts dissolve and achieve a dynamic equilibrium with solid precipitate.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-231.png?itok=VVna7t5x)
My Solar System
Source Institutions
In this online activity, learners build their own system of heavenly bodies and watch the gravitational ballet.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-687.png?itok=O0IUam7r)
Bend a Carrot
Source Institutions
In this activity, learners investigate the process of osmosis by adding salt to a sealed bag of raw carrots and comparing it to a control.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-030.png?itok=NmN6qR0m)
What Counts in Bounce
Source Institutions
In this activity learners compare the bounciness of warm and cold racquetballs to see if temperature makes a difference in how well they bounce.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-032.png?itok=b0aWIjmk)
Water: Clearly Unique!
Source Institutions
In this activity on page 4 of the PDF (Water in Our World), learners conduct some quick and easy tests to determine the differences between water and other liquids that look very similar to water.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-033.jpg?itok=dqs6UL45)
Does Size Make a Difference?
Source Institutions
In this activity on page 15 of the PDF, discover how materials and physical forces behave differently at the nanoscale.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-024.png?itok=q0n0tI-g)
New Sense about Cents
Source Institutions
In this activity on page 6 of the PDF (Chemistry—It’s Elemental), learners explore some of the properties of copper using a few common household ingredients.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-309.png?itok=02BOCoIS)
Paper Bridge
Source Institutions
In this engineering activity, challenge learners to construct a paper bridge that can support 100 pennies.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-166.jpg?itok=tm5GegJb)
¡Espirales de Colores!
Source Institutions
En esta actividad sobre la densidad de los líquidos, los participantes ven si las gotas de colorante se hunden en diferentes soluciones de agua.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-297.png?itok=edqMtztq)
Balloon Flinker
Source Institutions
In this activity, learners make a helium balloon "flink"--neither float away nor sink to the ground. Use this activity to introduce physics concepts related to gravity, density, and weight.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-688.jpg?itok=28Wj8pQS)
Inner Space
Source Institutions
In this activity, learners discover that there is space between molecules even in a cup "full" of water. They first fill a cup with marbles, and then add sand to fill the gaps between the marbles.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-293.png?itok=UwPnlQbF)
Electroscope
Source Institutions
In this activity, learners make an electroscope out of a foam cup, straw, aluminum pie pan, thread, and foil. Learners use their electroscopes to test for static electricity.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-235.jpg?itok=APMqQFfs)
pH Scale
Source Institutions
In this online interactive simulation, learners will test the pH of liquids like coffee, spit, and soap to determine whether each is acidic, basic, or neutral.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-678.png?itok=KUwm04GA)
Masses & Springs
Source Institutions
In this online activity, learners use a realistic mass and spring laboratory. They hang masses from springs and adjust the spring stiffness and damping.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-000.png?itok=YWz9q2rH)
Another Bright Idea!
Source Institutions
In this activity on page 5 of the PDF, learners use their knowledge of energy and batteries to create homemade flashlights.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-310.png?itok=3XhkT87c)
Super Golf Tower
Source Institutions
In this engineering activity, challenge learners to build a tower out of 10 sheets of newspaper and 3 feet of masking tape, which can hold a golf ball balancing at the top.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-029.png?itok=-a4lkmoQ)
Spaghetti Strength
Source Institutions
In this activity on page 7 of the PDF, learners explore how engineers characterize building materials.