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Dowels and Rubber Bands I
Source Institutions
If you have 3-foot dowels and rubber bands, you can can started on this fun and open design challenge. You can make structures big and small: make it so you can fit your parent into it!
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-046.jpg?itok=_6E4X_dr)
Pendulum Time
Source Institutions
In this activity, learners explore how the pendulum has been a reliable way to keep time for centuries.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-005-255.jpg?itok=coVgXF9a)
Exploring the Solar System: Moonquakes
Source Institutions
In this activity, learners sort different natural phenomena into categories (they occur on Earth, on the Moon, or on both), and then model how energy moves during a quake using spring toys.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-990.png?itok=BAgO4zhA)
Arduino Blink Challenge
Source Institutions
In this activity, learners explore computer programming and the impact of computers on society. Learners build and test a program to turn a light on and off using an Arduino board.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-984.jpg?itok=x8f6r_R3)
Chair Lift Challenge
Source Institutions
In this activity, learners explore the unique challenges in transportation engineering, such as devising a method for skiers or hikers to get to the top of a mountain.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-847.png?itok=Rfr720WB)
Circuit Bending with Play-Doh
Source Institutions
Break open that used musical toy and squish some Play-Doh over the circuit boards, and you will hear some weird and distorted sounds the manufacturer never intended!
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-024.jpg?itok=fviBeYjW)
Pósteres Sobre Animales y Matemáticas
Source Institutions
Exponga estos pósteres en el salón o déjelos donde los chicos los puedan explorar. Los chicos buscan las respuestas en libros de consulta o en línea.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-567.jpg?itok=8G1HykGk)
Hot Air
Source Institutions
In this activity, learners set up an experiment to investigate the effects of hot air on the path of a laser beam.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-005-094.jpg?itok=GdYOgY12)
How do we name things?
Source Institutions
In this activity, learners will learn a bit about botany as the explore botanical names and common names of plants.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-760.png?itok=8DKLLRkc)
Ocean Home: Swimming Fishes
Source Institutions
In this activity, learners model, on a human-sized board game, how changes in water temperature may affect fish distributions and, ultimately, fisheries.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-573.jpg?itok=ny1GfB6H)
Spectroscope
Source Institutions
In this activity, learners construct their own spectroscope as they explore and observe spectra from familiar light sources.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-002-598.png?itok=aR8_tWIH)
If Hot Air Rises, Why is it Cold in the Mountains?
Source Institutions
This demonstration/activity helps learners understand why higher elevations are not always warm simply because "hot air rises." Learners use a tire pump to increase the pressure and temperature inside
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-648.jpg?itok=vsnvimX-)
Testing Antimicrobials:: Antibacterial Soap? Do They All Work the Same?
Source Institutions
Many common household cleaners are antimicrobials.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-953.png?itok=9CzBtMB9)
Tall Tower Challenge
Source Institutions
In this activity, learners explore the design of tall structures such as skyscrapers and telecommunication towers.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-000-163.png?itok=qKDdO4n7)
Overnight Painting Machine: Pico Cricket Activity
Source Institutions
This activity requires a Pico Cricket (tiny computer).
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-005-032.jpg?itok=XMjzhP3o)
Paper Chain Testing
Source Institutions
Learners will do an experiment to determine which type of paper is strongest while focusing on variables and collecting data.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-005-026.jpg?itok=940aFNdM)
Build a Better Roof
Source Institutions
In this activity, learners will engineer a roof using simple materials to protect a construction paper person from a rainstorm.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-303.gif?itok=3-X_7Obk)
Layers of Liquids
Source Institutions
Learners pour equal amounts of coffee, mineral oil, corn syrup, and alcohol into a beaker. The liquids resolve into stacked layers, and learners can infer which liquids are the most and least dense.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-001-317.jpg?itok=9EoY1Tmy)
Salt Water Revival
Source Institutions
In this outdoor activity, learners visit the intertidal zone of a rocky coastal site well populated with marine organisms.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-003-979.jpg?itok=czOe9ajJ)
Dispenser Designs
Source Institutions
In this activity, learners explore how engineers work in a team to solve problems.