Today:
1.
Choose 1 or 2 partners for this
project. [Groups with 3 students must take pictures and
create brief captions to create Google Slides showing the following: Tracing the design, cutting and sealing the
plastic, measuring volume, measuring mass, making the fuel platform, adding the
fuel, and flying the balloon (and measuring lift)].
2.
Choose a balloon design. This
can be your design, someone else's. Here's a link to the spreadsheet
for estimating density.
3.
Upload the file that you have chosen
to your Google Drive. Set your shared settings to "anyone with a
link." Fill out this Hot
Air Balloon Project form and paste a link to your file into the form.
4.
Get your plastic sheet, and prepare
to trace your design. I plan to trace designs in the order in which
Google Forms were correctly completed.
5. Use the shrinkwrap sealer to cut and trim your design. Match up the edges with same numbers.
6.
Make sure that your balloon's hole
is at least 8" across.
7.
Use bamboo skewers to hold your
balloon open and to provide a perch for your fuel platform.
8.
Create a fuel platform using
aluminum flashing.
9.
Attach the platform to the skewers. Use nails to poke small holes, and then use
wire to connect the platform to the skewers.
10.
Use wire to create a loop below the
fuel platform. This is for attaching the string and weight.
11.
NEW
INFORMATION: Measure your balloon's volume.
12.
Measure your balloon's empty mass. Measure it in a tray, and make sure that you
subtract the mass of the tray.
Monday (probably)
1.
Use the classroom thermometer, the
current weather conditions, and this online air density
calculator to determine the current density the air in this room.
2.
Add fuel -- no more than 7ml.
3.
Fly your balloon and measure the
mass it can lift by attaching a string and a weight that sits on an electric
balance.
4.
Use your data and the current
weather conditions, and an online air density calculator to determine the
temperature of the hot air in the balloon.