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Showing results 1461 to 1480 of 1888
Why is the Sky Blue?
Source Institutions
In this activity, learners create a "mini sky" in a glass of water in a dark room.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-152.jpg?itok=aCC_GIw9)
Gravity and Falling
Source Institutions
This fun and simple hands-on astronomy activity lets learners experiment with a bucket, stretchy fabric, marbles, and weights to discover some basics about gravity.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-269.jpg?itok=IMqB7Mrb)
Powder Particulars
Source Institutions
In this introductory activity and demonstration, learners are introduced to the concept that different substances react chemically in characteristic ways.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-956.jpg?itok=8S3PYRH1)
Metal Noise Maker
Source Institutions
In this activity, learners explore how sound travels through solid objects better than through air. Leaners attach a metal clothes hanger to a piece of string and hold it to their ears.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-807.jpg?itok=V-x-k5gi)
Electrostatic Water Attraction
Source Institutions
In this activity, learners conduct a simple experiment to see how electrically charged things like plastic attract electrically neutral things like water.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-813.jpg?itok=DiK8RCRp)
Suminagashi: Floating Ink Paper Marbling
Source Institutions
In this activity, learners try to float ink on the surface of water to create a pattern and then capture it with absorbent paper.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-708.jpg?itok=7PjUegKS)
Airboat
Source Institutions
In this activity related to Newton's Laws of Motion, learners build a boat powered by a propeller in the air.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-185.jpg?itok=2fziJV2-)
How Do We Find Planets Around Other Stars?
Source Institutions
This fun and simple hands-on astronomy activity describes techniques scientists use to find planets orbiting other stars.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-255.jpg?itok=OxzR_tyN)
How Small Can You Cut?
Source Institutions
In this lesson, learners cut paper into very small pieces to explore the small size of quarks, the smallest thing we know of on Earth.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-046.jpg?itok=kF6cFmDo)
Postcards from Space
Source Institutions
Using information from the My Place in Space lithograph, learners write and/or draw a postcard to friends and family as if they had gone beyond the interstellar boundary of our Solar System, into the
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-734.jpg?itok=7a0MmmPt)
Polarized Sunglasses
Source Institutions
In this activity, learners explore how polarizing sunglasses can help diminish road glare.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-382.jpg?itok=l1ve3bfl)
Whale Cart
Source Institutions
In this activity, learners interact with whale artifacts such as replicas of skulls, bones, teeth, and baleen (hair-like plates that form a feeding filter).
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-639.png?itok=vZGCMoGZ)
Zoomers
Source Institutions
In this activity, learners build their own rockets from paper, coffee stirrers, and tape. Learners discover that when anything flies, air pressure is always involved.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-768.jpg?itok=ln-4ylx0)
Writing for Night Vision
Source Institutions
In this activity (page 1 of the PDF under SciGirls Activity: Forensics), learners will use a home video camera with a “night vision” mode to test how various inks appear outside the spectrum of visibl
Penny for Your Thoughts
Source Institutions
In this activity, learners will explore how metals react with each other. They will see these metals change before their eyes as they coat a paperclip with the copper taken from a penny.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-221.png?itok=6kbVkTas)
Wind Tubes
Source Institutions
In this activity, learners create and experiment with wind tubes. These tubes are a playful and inventive way to explore the effect that moving air has on objects.
Shrinkers
Source Institutions
Visitors use heat to shrink samples of polystyrene. They compare samples from containers that were shaped in different ways during manufacturing.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-697.jpg?itok=vGEvmj1m)
Digger
Source Institutions
In this activity, learners build their own construction cranes using tongue depressors and pushpins.
Concentrate: Concentrations and Reaction Rates
Source Institutions
Visitors incrementally increase the amount of iodate in three different test tubes containing the same amount of a starch solution.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-553.png?itok=QhpvVy18)
Glitter Slime
Source Institutions
Our bodies defend themselves in many different ways to prevent us from getting sick.