Search Results
Showing results 461 to 480 of 1480
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-364.jpg?itok=L9_x6HyB)
Fading Dot
Source Institutions
In this activity, learners play with a fuzzy-colored dot that has no distinct edges seems to disappear. As learners stare at the dot, its color appears to blend with the colors surrounding it.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-026.png?itok=VvNGp80V)
Wash This Way
Source Institutions
In this activity on page 4 of the PDF, learners investigate the importance of washing their hands.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-032.png?itok=b0aWIjmk)
Water: Clearly Unique!
Source Institutions
In this activity on page 4 of the PDF (Water in Our World), learners conduct some quick and easy tests to determine the differences between water and other liquids that look very similar to water.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-416.png?itok=G2GQqbhE)
Make Your Own Magnus Glider
Source Institutions
Build a glider that uses the same physics as a curve ball, for less than a dime.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-370.png?itok=SXcS6DMi)
Mid-Air Maneuver: Skateboard Science
Source Institutions
To understand how skaters turn in midair, try this little experiment! Individuals can do this activity alone, but it works better with a partner.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-700.jpg?itok=xrjg9wUn)
Geometry: Tiling the Plaza
Source Institutions
In this math lesson, learners arrange pattern blocks to create tessellations and to explore geometric patterns. Learners first explore making patterns with a variety of pattern blocks.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-513.jpg?itok=jeXuXg4C)
Experiencing Parallax With Your Thumb
Source Institutions
In this activity, learners investigate parallax, a method used to measure distances to stars and planets in the solar system.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-081.jpg?itok=DDRe8pCT)
Hot Stuff!: Testing for Carbon Dioxide from Our Own Breath
Learners blow into balloons and collect their breath--carbon dioxide gas (CO2). They then blow the CO2 from the balloon into a solution of acid-base indicator.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-624.png?itok=KrqUVDMt)
Spill Spread
Source Institutions
In this simulation, learners explore how ocean currents spread all kinds of pollution—including oil spills, sewage, pesticides and factory waste—far beyond where the pollution originates.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-618.jpg?itok=zYTQj-xT)
Paper Folding: Unfurling Geometric Paper Shapes
Source Institutions
Use geometry, a ruler, and a steady hand to create these amazing unfurling paper folds!
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-917.jpg?itok=1mbC869o)
Exploring at the Nanoscale
Source Institutions
This lesson focuses on how nanotechnology has impacted our society and how engineers have learned to explore the world at the nanoscale.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-231.jpg?itok=w0ZmBMV2)
Motor Bird
Source Institutions
In this activity, learners build a bird that flies in place with help from a motor, wire, and some straws.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-406.gif?itok=_WGGkRZA)
Earth Attractions
Source Institutions
In this activity, learners build and test a compass. Learners work in pairs and pretend they are stuck in the wilderness at night.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-225.jpg?itok=KofhoiWd)
Paddle Boat
Source Institutions
In this activity, learners build an old-fashioned paddle boat out of simple materials.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-374.png?itok=drQbeaf_)
Kites
Source Institutions
In this engineering/design activity, learners make a kite, fly it, and then work to improve the design. Learners explore how their kite design variations affect flight.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-073.jpg?itok=tW8PeYeq)
A Merry-Go-Round for Dirty Air
Learners build a model of a pollution control device--a cyclone. A cyclone works by whirling the polluted air in a circle and accumulating particles on the edges of the container.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-506.jpg?itok=qz7lav4A)
Floating Candles
Source Institutions
In this chemistry activity, learners observe a combustion reaction and deduce the components necessary for the reaction to occur.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-701.png?itok=1M2ChtU0)
Number Systems and Number Theory: Factor Game
Source Institutions
In this math lesson, learners play a game to identify the properties of prime, composite, abundant, deficient and perfect numbers.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-826.png?itok=gi_sGWtI)
Valves and Pumps: A Demonstration
Source Institutions
This is a demonstration you can use to show learners how valves and pumps work in concert to move blood through the circulatory system.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-604.jpg?itok=r7Od32Y0)
Shoe Dichotomous Key
Source Institutions
In this activity (on page 2 of the PDF under GPS: Cactus Activity), learners will develop their own version of a tool used by biologists, a dichotomous key, by collecting all their left shoes.