Search Results
Showing results 1 to 19 of 19
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-947.jpg?itok=_rUhPLCR)
Cupcake Delivery
Source Institutions
In this design challenge, learners will create wind-powered contraptions to transport a load, such as a cupcake or another small object, and test to see if they work.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-497.png?itok=2ooHCdQc)
Fragile Waters
Source Institutions
In this activity (on pages 18-29) learners explore the impact of the March 24, 1989 oil spill in Alaska caused by the Exxon Valdez tanker.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-768.png?itok=_-QbNZLh)
From Here to There
Source Institutions
In this water activity, learners discover ways to move water across the water table.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-098.png?itok=FcwqA7XH)
Crank It Up
Source Institutions
In this engineering activity, learners explore simple machines and then build cardboard automata using cams.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-620.jpg?itok=ww_srf1V)
Exploring Structures
Source Institutions
This event guide features three related explorations in which learners investigate the following science concepts: how you design and build a structure helps determine how strong it will be; different
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-568.gif?itok=spJ-gsQz)
Do Plants Need Light?
Source Institutions
In this food science activity, learners conduct an experiment that demonstrates the importance of light to plants.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-932.gif?itok=MNmkjq5g)
Hidden Alarm
Source Institutions
In this design challenge activity, learners invent a device that will make their friends and family ask, "What's buzzing?" Learners design an alarm with an on/off switch that is small enough to hide.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-766.png?itok=kTM-nDTN)
Boats Afloat
Source Institutions
In this water activity, learners build boats that float and sink. First, learners listen to the book, "Who Sank the Boat" and practice making predictions throughout the story.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-928.jpg?itok=95pFnCEL)
Confetti Launcher
Source Institutions
Hooray! In this design challenge activity, learners invent a device that launches a spoonful of confetti into the air. Learners are encouraged to create the biggest cloud of confetti possible.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-914.jpg?itok=AaZNkrVy)
Convenient Carrier
Source Institutions
In this design challenge activity, learners invent a convenient way for someone using crutches or a wheelchair to carry small personal items.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-619.jpg?itok=SX5njDQw)
Exploring Ramps
Source Institutions
This guide features three related ramp explorations in which learners investigate the following science concepts: when placed on a ramp, some objects roll, others slide, and others stay put; the shape
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-911.gif?itok=AK2t3Qk_)
Headphone Helper
Source Institutions
In this design challenge activity, learners add headphones to a previously built instrument (see "Build a Band" activity) to make it easier to hear.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-034.png?itok=73WAe8tX)
Safe in the Sun
Source Institutions
In this activity on page 13 of the PDF, use a special plastic card that has been painted with a chemical that changes color when it is in UV light.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-031.png?itok=b_4fZEGw)
Cleaning Water with Dirt
Source Institutions
In this activity on page 7 of the PDF (Water in Our World), learners make their own water treatment systems for cleaning water.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-931.gif?itok=IrPYeE-W)
Kick Stick Challenge
Source Institutions
In this design challenge activity, learners investigate series circuits and motors to build a hand-held "kick stick." Their goal is create a battery-operated device that sends a Ping-Pong ball across
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-918.jpg?itok=C8-JS7VU)
Extreme Kicking Machine
Source Institutions
In this design challenge activity follow up to "Kicking Machine", learners add a hands-free feature to their Kicking Machine.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-930.gif?itok=hu7Ep8gi)
Motorized Car
Source Institutions
In this design challenge activity, learners build a car that uses a battery-operated motor to "drive" at least ten feet.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-097.png?itok=swrLhcbw)
Grab and Go
Source Institutions
In this engineering activity, learners design and build a mechanical arm to lift a small item.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-919.jpg?itok=r_Bc2ngt)
Kicking Machine
Source Institutions
In this design challenge activity, learners build a machine that kicks a Ping-Pong ball into a cup lying on its side 12 inches away.