Search Results
Showing results 21 to 40 of 148
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-485.png?itok=guP2shnY)
Waterproof Hanky
Source Institutions
In this physics demonstration, learners will be surprised when a handkerchief holds water in an upside-down glass.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-094.jpg?itok=utnSeEC9)
Why Doesn’t the Ocean Freeze?
Source Institutions
In this activity, learners explore how salt water freezes in comparison to fresh water.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-719.jpg?itok=flY87hLK)
Eddy Currents
Source Institutions
In this activity related to magnetism and electricity, learners discover that a magnet falls more slowly through a metallic tube than it does through a nonmetallic tube.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-142.jpg?itok=PP-St5l9)
It's a Gas, Man
Source Institutions
In this activity, learners discover if carbon dioxide has an effect on temperature.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-891.jpg?itok=31quqjzG)
Orange Pop
Source Institutions
In this activity, learners surprisingly pop balloons without touching them using orange peels. This Mr.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-383.jpg?itok=R76CSycN)
Create Gas
Source Institutions
Learners mix vinegar and baking soda together in a bottle to create a chemical reaction. The reaction produces a gas, carbon dioxide, which inflates a balloon attached to the mouth of the bottle.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-308.gif?itok=UpyYa441)
Lava Lamps
Source Institutions
Learners observe working lava lamps to understand how they work (included in PDF link).
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-585.jpg?itok=tTxW-271)
Imploding Pop Can
Source Institutions
In this dramatic activity/demonstration about phase change and condensation, learners place an aluminum can filled with about two tablespoons of water on a stove burner.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-351.jpg?itok=Yjqv9l8V)
Dark Adaptation
Source Institutions
In this activity (6th on the page), learners investigate how photoreceptors in the eye (rods and cones) "adapt" to low light conditions.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-147.png?itok=pEwd6l7U)
Crunch Time
Source Institutions
In this quick and easy activity and/or demonstration, learners use two empty 2-liter bottles and hot tap water to illustrate the effect of heat on pressure.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-382.jpg?itok=393ASMS2)
Egg Drop
Source Institutions
Perform this classic inertia demonstration to illustrate the transfer of potential energy to kinetic energy.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-719.jpg?itok=utIumv4L)
Cookie Subduction
Source Institutions
This is a quick activity that shows how large amounts of rock and sediment are added to the edge of continents during subduction.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-591.jpg?itok=udgSaoGf)
Why do Hurricanes go Counterclockwise in the Northern Hemisphere?
Source Institutions
In this kinesthetic activity, learners will play a game with a ball to demonstrate the Coriolis force, which partly explains why hurricanes in the Northern Hemisphere rotate counterclockwise.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-595.png?itok=APN6aP0C)
Do Cities Affect the Weather?
Source Institutions
In this activity, learners explore clouds and how they form.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-581.jpg?itok=VxkAzCkQ)
Vanishing Rods
Source Institutions
This is a quick activity/demonstration that introduces learners to the concept of index of refraction. Learners place stirring rods in a jar of water and notice they can see them clearly.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-580.gif?itok=iKGOAchq)
Two Ball Bounce
Source Institutions
This is a quick, yet dramatic activity/demonstration that introduces learners to the concept of energy transfer. A small ball is placed on top of a large ball and both are dropped together.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-594.jpg?itok=uPLxnmkE)
Can You Make Ice Cream in Two Minutes?
Source Institutions
In this demonstration, learners observe how liquid nitrogen both boils and freezes ingredients to make ice cream in two minutes.
Finding the Right Crater
Source Institutions
This quick demonstration (on page 11 of PDF) allows learners to understand why scientists think water ice could remain frozen in always-dark craters at the poles of the Moon.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-582.jpg?itok=TLHfCbIJ)
Root Beer Float
Source Institutions
In this quick activity/demonstration about density, learners examine what happens when two cans of root beer--one diet and one regular--are placed in a large container of water.
Become a Master of Inertia
Source Institutions
In this activity, learners explore inertia as they attempt to whip a strip of paper out from under two coins dangling on the rim of a water glass.