Search Results
Showing results 1 to 20 of 22
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-523.jpg?itok=Sp34uwDN)
Fireworks!
Source Institutions
In this chemistry lab activity, learners model the colors of fireworks by burning metallic solutions in a flame and observing the different colors produced.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-022.png?itok=xgwNJTRU)
Forgotten Genius
Source Institutions
This series of chemistry stations is designed to accompany the PBS documentary about African-American chemist "Percy Julian: Forgotten Genius." Each of the six stations features either a chemical or p
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-650.png?itok=81KFdKMO)
Fruit Xylophone: Fruit Salad Instrument of the Future!
Source Institutions
This is a perfect summertime lunch activity! Pico Cricket is required (micro controller). First, get a bunch of cut up fruit, line them up, then plug a piece of fruit with a Pico Cricket sensor clip.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-068.jpg?itok=3s8tIA7x)
As The Stomach Churns
Source Institutions
In this chemistry activity, learners fill two test tubes with a solution of "artificial stomach fluid," consisting of hydrochloric acid in the same concentration as in human stomachs, some soap to cre
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-002.gif?itok=H9njPW-a)
Natural Buffers
Source Institutions
Learners use a universal indicator to test the amount of sodium hydroxide needed to change the pH of plain water compared with the amount needed to change the pH of gelatin.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-473.png?itok=41UeBPv4)
Egg-Citing Physics
Source Institutions
In this demonstration about momentum, use physics to distinguish between a hard-boiled egg and a raw egg without cracking them open.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-660.jpg?itok=8N2ZSmbE)
Forms of Carbon
Source Institutions
In this activity, educators can demonstrate how the nanoscale arrangement of atoms dramatically impacts a material’s macroscale behavior.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-003.gif?itok=kTZ6De_9)
Common Scents
Source Institutions
Learners use a mortar and pestle to extract clove oil from cloves using denatured alcohol. They put this oil on paper, which they can take home.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-661.jpg?itok=4bXcMGPE)
DNA Nanotechnology
Source Institutions
In this activity, learners explore deoxyribonucleic acid (DNA), a nanoscale structure that occurs in nature.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-014.gif?itok=syNshIoL)
Rocket Science
Source Institutions
Learners create a small explosion by collecting hydrogen and oxygen gas together and squeezing them into a flame.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-139.jpg?itok=n8YXW_Ka)
Mystery Tubes
Source Institutions
Learners investigate a pre-constructed mystery tube to determine its interior mechanism.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-833.jpg?itok=WuKleBsU)
Build a Battery
Source Institutions
Learners build a simple one-cell battery and use an ammeter to measure the flow of current.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-825.png?itok=aCshT2wN)
Shrinkers
Source Institutions
In this hands-on activity, learners use heat to shrink samples of polystyrene plastic (#6 recycle code). Learners compare the size and shape of the plastic pieces before and after shrinking.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-831.jpg?itok=rSLuIoOY)
Concentrate!
Source Institutions
In this investigation of reaction kinetics, learners alter the amount of iodate solution mixed with the same amount of starch solution.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-305.gif?itok=zwBhjHPs)
Potato Power
Source Institutions
Learners combine hydrogen peroxide with three different forms of potato: raw chunks, ground chunks, and boiled chunks.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-843.jpg?itok=dclksVgE)
Currently Working
Source Institutions
Learners test solutions of water, sugar, salt, and hydrochloric acid for electrical conductivity. They immerse leads from a lighting device (a battery pack connected to an LED) into each solution.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-891.gif?itok=jta6U-yN)
Foam Peanuts
Source Institutions
Learners compare the properties and solubilities of Styrofoam (TM), ecofoam packing peanuts, and popcorn. First, the solubility of each substance is tested in water.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-187.jpg?itok=VwiMcyGY)
Landfill in a Bottle
Source Institutions
In this activity, learners discover how landfills affect the natural environment.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-732.jpg?itok=zz-17kJq)
Good Vibrations
Source Institutions
This lesson (on pages 15-24 of PDF) explores how sound is caused by vibrating objects. It explains that we hear by feeling vibrations passing through the air.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-010.gif?itok=QeOVLkZQ)
Magic Inks
Source Institutions
Learners write their initials by applying different clear "magic ink" solutions to separate pieces of paper and then "develop" the inks with other clear solutions.