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Hands-On Wednesday

Talking Cups

Make your own spooky talking cup, just in time for Halloween! In this experiment, we observe that sounds are caused by vibrations. When you move the wet paper towel down the string, you cause the string to vibrate. The cup amplifies the vibrations, producing a sound! After you’ve created your talking cup, take this experiment further by testing different types and lengths of string or different cups. Can you make a device that produces a louder sound?

Posted in STEM Hands On


After School Fall 2016: Week 5

Circuit Bugs

For this week's activity, girls continued to review concepts that are important to the Electrical Engineering career! Students reviewed basic circuitry vocabulary, such as "closed and open circuits", "currents", and "energy transfer". Then it was time to construct the circuit bugs!

Posted in After School Blog


Hands-On Wednesday

Burning Candles Underwater

Burn a candle in water in this experiment that demonstrates heat flow, the process that causes things to feel warm! The water surrounding the candle absorbs the heat from the flame, causing the candle to burn differently than a normal candle. When you light your underwater candle, light a normal one so you can compare the two. Which one burns longer? Do they look different after the flame has gone out?

Posted in STEM Hands On


After School 'to Go' Fall 2016: Week 4

Liquid Circuits

During Week 4 of After School To-Go, students combined liquids and electricity and to bring a little light to the Electrical Engineer career. This activity should always be conducted with adult supervision! Girls investigated electrical currents to find a solution to the global problem of water access. First, students built closed circuits to light a bulb. Certain materials, like a paperclip and an eraser, were tested for conductivity.

Posted in After School Blog

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