Search Results
Showing results 41 to 60 of 93
![](/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-000-000-004-650.jpg?itok=cuB37x-t)
Anti-Sound Spring
Source Institutions
What happens when two wave pulses meet in the middle? Send waves down a spring to watch them travel and interact.
![](/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-000-000-000-846.jpg?itok=LG_YG52T)
It's a Gas!
Source Institutions
In this activity, learners explore two properties of gases: gases take up space and exert pressure. Learners assemble two flasks and a beaker, connecting them with stoppers and tubing.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-371.jpg?itok=G0NIzJmW)
Pop Rockets
Source Institutions
Learners place water and part of an antacid tablet in a film canister. The reaction creates a gas reaction that launches the film canister like a rocket.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-349.jpg?itok=PVhwtrUk)
X-Ray Vision?
Source Institutions
In this activity (13th on the page), learners complete a simple illusion trick to see through their own hand.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-024.jpg?itok=fviBeYjW)
Pósteres Sobre Animales y Matemáticas
Source Institutions
Exponga estos pósteres en el salón o déjelos donde los chicos los puedan explorar. Los chicos buscan las respuestas en libros de consulta o en línea.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-015.png?itok=Nl_9_uWc)
Momentos de Mixing in Math: Varias Actividades Matemáticas de 5 ó 10 Minutos
Source Institutions
Los Momentos de Mixing in Math son actividades de 5 a 10 minutos que mantienen a los chicos ocupados, aprendiendo sobre el mundo, y usando matemáticas por su cuenta.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-680.jpg?itok=6xlyPmXd)
Magnetic Lines of Force
Source Institutions
With a magnet, iron fillings, and a bottle, you can create a cool demonstration about magnetic lines of force: the fillings will arrange themselves within the magnet's magnetic field.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-612.gif?itok=7y0IEX0t)
Afterimage
Source Institutions
In this activity about vision and optical illusions, learners conduct a simple test to demonstrate how our eyes create "afterimages." Learners stare at a black cardboard bat for at least 30 seconds an
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-611.gif?itok=W4zyFAWB)
Reflections
Source Institutions
In this quick activity, Dracula has a hole in his house and learners help solve the problem by using a mirror and protractor to reflect incoming light out of his house.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-683.jpg?itok=jbgDVR_D)
Michelle O (formerly Vanna)
Source Institutions
We don't normally view people upside down and so our brains aren't accustomed to it.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-654.jpg?itok=UeYDwgEB)
Circles or Ovals?
Source Institutions
This science activity demonstrates the dominant eye phenomena. What does your brain do when it sees two images that conflict?
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-662.jpg?itok=cd8qX2jG)
Coupled Resonant Pendulums 2
Source Institutions
Create a simple dual pendulum and get them to swing in identical ways. This is a simple, low cost, activity produced by the Exploratorium.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-829.jpg?itok=4eriZEZr)
Trading Places
Source Institutions
In this activity, learners discover that atoms and ions of different metals will change places.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-354.jpg?itok=JAKuUUay)
Depth Perception
Source Institutions
In this easy demonstration (3rd on the page), learners explore depth perception by conducting a test with two pencils.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-397.gif?itok=_ivKXnOr)
Think Fast!
Source Institutions
This is a quick and simple demonstration about reflexes (fourth activity on the page). One learner stands behind a see-through barrier like a window or wire screen.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-828.jpg?itok=d55EgP1D)
Dye Detective
Source Institutions
Learners analyze mixtures of dyes using filter paper chromatography. They place spots of the different dyes at the bottom of a piece of filter paper, and hang the paper to touch the surface of water.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-346.jpg?itok=m7HqL0WC)
Accommodating Accommodation
Source Institutions
In this demonstration (18th on the page), learners conduct a simple test to explore how the cornea refracts light, which is further bent by the eye lens through a process known as accommodation.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-352.jpg?itok=UJI2nI1I)
Shifting Backgrounds, Shifting Images
Source Institutions
In this quick activity/demonstration (5th on the page), learners explore depth perception.