girlstart deSTEMber Vibrating Dinosaur, Быстрый старт

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How To:
Soldering Instructions:
1. Peel off the adhesive backing from the motor, align the wires on the motor with the leads (gold colored
squares) on the sides of the solar cell, and stick the motor on to the cell. Make sure the motor is
attached to the bottom of the solar cell (the non-solar panel side)!
2. Read over the attached soldering safety tips with an adult.
3. With adult supervision, turn the soldering iron on and let it heat up. To check if the iron is ready to use,
touch the tip of the solder to the soldering iron and the solder should begin to melt.
4. The part that requires solder is the connection between the wires and the leads on the solar cell.
5. Once the iron is hot enough, unroll part of the solder, and hold the solder in your gloved hand. Touch
the tip of the solder to the tip of the soldering iron. Once the solder becomes liquid, be sure the liquid
drop stays on the iron, and then gently wipe the liquid drop onto the wires touching the leads on the
solar cell. Be very careful that the liquid solder does not touch your skin, as it will cause serious burns!
6. Let the solder dry and cool before making sure the connection is secure. (Touching the solder while it’s
still hot can burn you!) If needed, add more solder to fully attach and connect the motor’s wires to the
solar cell’s leads.
Decorating Instructions:
1. Color and cut out the pterodactyl template (both sides of the paper should be colored).
2. Hot glue the wings to the bottom of the solar cell (the same side the motor is on). Be sure not to glue
the motor.
3. Cut a slit on the back end of the dinosaur head along the black line, slip the solar cell through the slit,
and glue the head to the bottom side of the solar cell.
4. Cut 4 pieces of pipe cleaner into 2-3 inch sections to create the legs.
5. Hot glue or tape the legs to the bottoms of the solar cell, 2 on each long side of the solar cell.
6. Attach the googly eyes to each side of the dinosaur head.
7. Take your finished dinosaur outside, let the solar cell absorb the sun’s energy, and watch your dinosaur
move!
STEM Explanation:
Solar panels/cells absorb the sun’s rays to provide energy to create electricity or heat. They can serve as the
battery for electrical circuits. In this activity, the solar cell and the sun are the battery of the circuit, and the
motor is the object being powered. The wires that were soldered allow the electricity to flow from the solar
cell to the motor. Soldering is the process of joining two metal pieces together by melting another metal,
solder. Essentially, the liquid solder acts as “glue” to attach the metal pieces to one another. Solder is used
because it is a metal, and metals are good conductors. Conductors allow electricity to flow from the battery to
the object. By soldering two metal pieces together, connections between electrical parts become permanent.
Career Connection:
Solar energy engineers plan, design, and create solar energy projects. They suggest ways to use more passive
solar design techniques to lower costs and energy use, minimize maintenance, reduce greenhouse gas
emissions, and provide comfortable indoor environments for people.