Search Results
Showing results 561 to 580 of 998
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-676.jpg?itok=uDzzQpC1)
Indicating Electrolysis
Source Institutions
Electrolysis is the breakdown of water into hydrogen and oxygen. This Exploratorium activity allows learners to visualize the process with an acid-based indicator.
![](/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-000-000-003-385.jpg?itok=zrcFkcsc)
Fly a Hot-Air Balloon
Source Institutions
Learners assemble a hot-air balloon from tissue paper. The heated air (from a heat gun) inside the balloon is less dense than the surrounding air and causes the balloon to float.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-733.gif?itok=iy10y1nN)
Cake by Conduction
Source Institutions
In this demonstration, cook a cake using the heat produced when the cake batter conducts an electric current.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-757.jpg?itok=wAuEtaw2)
Origami Flying Disk
Source Institutions
In this three-part activity, learners use paper to explore Bernoulli's Principle — fast-moving air has lower pressure than non-moving air.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-119.jpg?itok=85Dtq5r3)
Bike Wheel Zoetrope
Source Institutions
In this activity (posted on April 18, 2011), learners follow the steps to construct a zoetrope, a device that produces an illusion of action from a rapid succession of static pictures, using a 16" bik
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-809.jpg?itok=4qQJuWgM)
Chemistry is Colorful
Source Institutions
In this activity, learners explore materials through paper chromatography.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-794.gif?itok=JjUdkH3I)
Sliding Gray Step
Source Institutions
How can you make one shade of gray look like two? By putting it against two different color backgrounds! This activity allows learners to perform this sleight of hand very easily.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-482.png?itok=PiNmUbsG)
Potato Straw
Source Institutions
In this physics demonstration, learners are challenged to insert a straw the furthest into a potato.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-496.gif?itok=SXhC4Vfj)
Daffy Density
Source Institutions
In this chemistry activity, learners explore density by using four solids and 6 liquids to create colorful, layered rows.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-652.jpg?itok=sYojSBlg)
Mystery Sand
Source Institutions
In this activity, learners play with surprising sand that doesn’t get wet! Learners explore how water behaves differently when it comes in contact with "magic sand" and regular sand.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-560.png?itok=kwTPv_wj)
Modeling an HIV Particle
Source Institutions
This activity helps learners visualize the Human Immunodeficiency Virus (HIV) by constructing three-dimensional HIV particle models from paper.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-939.jpg?itok=fLm0ph07)
Working with Watermills
Source Institutions
In this activity, learners explore how watermills have helped harness energy from water through the ages.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-005-015.jpg?itok=nlw8Ph9g)
Balancing Sculptures
Source Institutions
In this activity, learners will use a variety of household and/or natural objects to design a sculpture that balances from a single point.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-408.jpg?itok=8LLsT8CA)
Gelatin Used for Drug Delivery
Source Institutions
In this activity, learners discover how gelatin can be used as a medium for drug delivery. Learners create colored gelatin and then cut out pieces of the gelatin to simulate medicine (pills).
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-915.jpg?itok=HvBB6tTl)
Nano Waterproofing
Source Institutions
This lesson focuses on how nanotechnology has impacted the design and engineering of many everyday items from paint to fabrics.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-005-011.jpg?itok=rubCJEoq)
Rolling Action Art
Source Institutions
In this activity, learners of all ages will roll a ball coated with paint to artistically visualize the motion of the object.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-005-005.jpg?itok=Jz7bFxNc)
Engineer A Bird Feeder
Source Institutions
In this activity, learners of all ages will design a functional bird feeder using familiar, every day materials.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-253.png?itok=eSPWRIGR)
How Long Can You Hold Your Breath?
Source Institutions
In this activity (on page 142 of the PDF), learners will compare breathing rates before and after hyperventilation to explore how reduced carbon dioxide levels in the blood lower the need to breathe.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-247.png?itok=LbqWs0Zy)
Pitch, Roll and Yaw: The Three Axes of Rotation
Source Institutions
In this activity (page 87 of the PDF), learners move their bodies to better understand the three axes of rotation: pitch, roll and yaw.