Community Science Workshop Network
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-268.jpg?itok=JrrGxrYq)
Canjo
Source Institutions
In this activity, learners explore sound by constructing their very own banjo out of a coffee can. Learners experiment with the canjo to change the instrument's pitch and timbre.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-244.jpg?itok=-k28o94E)
Gassy Lava Lamp
Source Institutions
In this activity, learners use oil, water, food coloring and antacid tablets to create a bubbling lava lamp. Use this activity to introduce concepts related to density, hydrophobicity vs.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-250.jpg?itok=P2evtlEM)
Magnetic Seesaw
Source Institutions
In this activity, learners build a seesaw powered by magnets.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-251.jpg?itok=GurNjRwe)
Metallophone
Source Institutions
In this activity, learners explore sound by constructing an instrument using some metal pipes, rubber bands, and a baseboard.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-245.jpg?itok=n1gcVgdx)
Energetic Water
Source Institutions
In this activity, learners explore how hot and cold water move. Learners observe that temperature and density affect how liquids rise and fall.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-253.jpg?itok=9DBL2AJ9)
Wonderful Weather
Source Institutions
In this activity, learners conduct three experiments to examine temperature, the different stages of the water cycle, and how convection creates wind.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-247.jpg?itok=j0spO-8I)
Periscope
Source Institutions
In this activity, learners construct a device that allows them to look over ledges or around corners.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-246.jpg?itok=P9ocDOKd)
Cranking Bird
Source Institutions
In this activity, learners build a mini crank machine to make a bird "fly." This engineering activity introduces learners to automata, rotational motion, cranks and cams.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-252.jpg?itok=iJxFMQZK)
Woodpecker
Source Institutions
In this activity, learners construct a traditional handicraft toy that illustrates a motion commonly associated with violins and earthquakes.
![](/sites/default/files/styles/square_100/public/resource_images/smile-000-000-004-235.jpg?itok=-krlroVo)
Forward-Reverse Switch
Source Institutions
In this activity, learners build a switch to turn electrical circuits on and off.