Search Results
Showing results 1401 to 1420 of 1888
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-778.jpg?itok=AXeaZIpy)
Jumping Beans
Source Institutions
In this physics activity (page 3 of the PDF), learners will explore the concept of static electricity.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-641.jpg?itok=IWb2FOXp)
Light and Sound
Source Institutions
In this four-part activity, learners explore light and sound through a variety of hands-on investigations.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-127.jpg?itok=oJLDUMML)
Head in the Clouds
Source Institutions
In this activity, learners create a CloudSpotter wheel and record the different types of clouds they observe twice daily over several days.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-133.jpg?itok=p4S-94fU)
Moonlight Serenade
Source Institutions
In this activity, learners act as the Earth and observe how different angles between the Sun, Earth, and Moon affect the phases of the moon we see each month.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-669.jpg?itok=3PAuiOaN)
Your Father's Nose
Source Institutions
In this fun optics activity, learners explore principles of light, reflection (mirrors), and perception. Learners work in pairs and sit on opposite sides of a "two-way" mirror.
Hot and Cold: Endothermic and Exothermic Reactions
Source Institutions
Visitors mix urea with water in one flask and mix calcium chloride with water in another flask. They observe that the urea flask gets cold and the calcium chloride flask gets hot.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-027.jpg?itok=WCjzeJSo)
Release the Grease!
Source Institutions
In this simple activity (on page 7 of the PDF), learners use water and liquid dish detergent to see which one removes lipstick better from an index card.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-696.jpg?itok=vxsXLP5z)
Electromagnetic Dancer: Connect Her Up and Watch Her Dance!
Source Institutions
In this activity, learners use a nail and magnet wire to build an electromagnet, which controls the movements of a paper dancer.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-546.png?itok=p1E6eqoH)
Air-filled (Pneumatic) Bone Experiments
Source Institutions
Just like birds, some dinosaurs had air-filled (pneumatic) bones, which made the dinosaurs' skeletons lighter.
It's A Gas!
Source Institutions
Visitors mix water and sodium bicarbonate (baking soda) in a large flask. They then add citric acid to the mixture and stopper the flask. The resulting reaction creates carbon dioxide gas.
![](/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.
All Mixed Up!: Separating Mixtures
Source Institutions
Visitors separate a mixture of pebbles, salt crystals, and wood shavings by adding water and pouring the mixture through a strainer.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-769.jpg?itok=N74UqfZ-)
Tug-of-War
Source Institutions
This activity (on page 2 of the PDF under SciGirls Activity: Tug O' War) is a full inquiry investigation into tug-of-war physics. Groups of learners will test two tug-of-war strategies.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-735.jpg?itok=YEd2ohv9)
Pinhole Magnifier
Source Institutions
In this activity related to light and perception, learners use a pinhole in an index card as a magnifying glass to help their eye focus on a nearby object.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-047.jpg?itok=tAH8_PQN)
Mystery Matter
Source Institutions
This interactive demonstration reintroduces learners to three states of matter (solid, liquid, gas), and introduces them to a fourth state of matter, plasma.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-254.gif?itok=fcKLTmzD)
Pea Brain!: Explorations in Estimation
Source Institutions
In this activity, learners use two different techniques to estimate how many little things fit into one bigger thing.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-532.png?itok=LtNA0zyD)
Tiny Pants Photo Challenge
Source Institutions
In this activity, learners use a simple trick of perspective to dress friends in tiny cutout clothing. Learners make tiny pants out of card stock and tape them to the end of a stick.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-721.jpg?itok=NwL7-uzi)
Circles of Magnetism I
Source Institutions
In this activity related to magnetism and electricity, learners create a magnetic field that's stronger than the Earth's magnetic field.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-957.jpg?itok=egYADqrD)
Paper Lanterns
Source Institutions
In this activity, learners explore light and shadows by creating a lantern they can keep on their nightstand.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-268.jpg?itok=TLx3fUdZ)
Using Chemical Change to Identify an Unknown
Source Institutions
In this activity, learners will develop a method to test five similar-looking powders (baking soda, baking powder, cream of tartar, detergent, and cornstarch) with four test liquids (water, vinegar, i