Search Results
Showing results 1 to 17 of 17
![](/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-000-000-002-498.jpg?itok=-jB6VW9m)
Rate of Solution Demonstration
Source Institutions
In this chemistry demonstration, learners investigate the factors that increase the rate of dissolution for a solid.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-472.png?itok=LeKZ-TAQ)
One In The Hand
Source Institutions
In this physics demonstration, learners are challenged to break a raw egg just by squeezing it. Learners will be shocked by their inability to complete the deceivingly simple challenge.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-001.gif?itok=ya_ijTMA)
Natural Indicators
Source Institutions
Learners combine different plant solutions -- made from fruits, vegetables, and flowers -- with equal amounts of vinegar (acid), water (neutral), and ammonia (base).
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-173.jpg?itok=9wKvQDjR)
Experimenting with Naked Eggs
Source Institutions
In this activity about osmosis, learners use a naked egg (one with a dissolved eggshell) to learn about selectively permeable membranes.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-615.jpg?itok=zAbj8Au6)
Why is the Sky Blue?
Source Institutions
In this activity, learners use a flashlight, a glass of water, and some milk to examine why the sky is blue and sunsets are red.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-714.gif?itok=cN5RyrOU)
A Stand-up Egg
Source Institutions
In this science trick, learners get an egg to stand-up on its long-axis vertical to a table's top.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-414.jpg?itok=WJIcq4Y_)
Gumdrop Chains and Shrinky Necklaces
Source Institutions
In this activity, learners thread gumdrops together to make a model of a polymer.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-607.gif?itok=woQGursp)
Mighty Molecules
Source Institutions
In this activity, learners use marshmallows and gum drops to construct seven models of molecules. Learners classify (solid, liquid or gas) and draw diagrams of the molecules.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-463.jpg?itok=7yvcYcj8)
Rock Candy
Source Institutions
In this yummy chemistry activity which requires adult supervision, learners use sugar and water to explore how crystals form.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-182.jpg?itok=hGvKc5cH)
Take an Egg for a Spin
Source Institutions
This is an activity about friction as well as kinetic and potential energy.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-385.jpg?itok=DIsas6FD)
Model Eardrum
Source Institutions
In this activity (last activity on the page), learners make a model of the eardrum (also called the "tympanic membrane") and see how sound travels through the air.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-483.png?itok=CuCKFY_y)
Lifting Lemon
Source Institutions
In this physics demonstration, learners will be surprised when a lemon slice appears to magically levitate within a pint glass.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-866.jpg?itok=aeniFI_r)
The Thousand-Yard Model
Source Institutions
This is a classic exercise for visualizing the scale of the Solar System.
Growing Rock Candy
Source Institutions
In this activity, learners make their own rock candy. Crystals will grow from a piece of string hanging in a cup of sugar water. The edible crystals may take up to a week to form.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-174.jpg?itok=arOa2Rrl)
Making Naked Eggs: Eggs Without Shells
Source Institutions
This is an activity about acid-base reactions using eggs and vinegar. Learners place eggs inside a container of vinegar and leave to soak overnight.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-165.gif?itok=Hoy8wvgP)
Try Growing Your Own Mold
Source Institutions
This is a hands-on activity that uses bread and household materials to grow mold. Learners collect dust from a room, wipe it on food, and contain it. One to seven days later, mold has grown.