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designed a way
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eat! The air ar
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makes
you need to
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th
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keep an ice cu
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design yo
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nd ic
2 Put a seco
any changes to
e
ak
m
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o
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“control” cu
this ice cube.
How can you change
the container so the ice
cube melts more slowly?
What happens if you use
a smaller box? Or,
what happens if you use
different materials,
like foam packing peanuts
or cotton balls? Choose
one thing to change (that’s
the variable), and make
a prediction. Then test
it and send your results
to ZOOM.
inutes.
3 Wait 30 m
the
-a-Cube box to
p
e
e
K
r
u
yo
in
the ice cube
bigger? Why?
is
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4 Compare
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e plate.Wh
ice cube on th
Sent in by Becky R. of Greenfield, WI, and Billy M. of Reno, NV
ENGINEERING is a partnership of WGBH and National Engineers Week. National Engineers Week 2002 chairs: DuPont and the American Society
of Civil Engineers. ZOOM is produced by WGBH Boston. Funding for ZOOM is provided by the National Science Foundation, the Corporation for Public
Broadcasting, the Arthur Vining Davis Foundations, and public television viewers. Any opinions, findings, and conclusions or recommendations expressed in
this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.
TM / © 2002 WGB H Educational Foundation
pbskids.org/zoom
Engineer’s Notebook
Keep-a-Cube
TM/© 2003 WGBH Educational Foundation.
My Prediction
What Happened
anted!
Engineers W room that’s
been in a
Have you ever
you
cold? Imagine if
too hot or too
re so that
the temperatu
could control
s are
r you. Engineer
it’s just right fo
called
re
tu
es for the fu
designing hom
enter
u
uses.When yo
“smart” ho
ho you
s will detect w
a room, sensor
e the
puter will mak
m
co
a
n
he
T
e.
ar
colder,
re warmer or
tu
ra
pe
m
te
room
Engineers
what you like.
depending on
s of
design new kind
like you could
.
“smart” houses
OM !
Send It to ZOsults at
TM
re
Tell us about your
/sendit
om
zo
g/
pbskids.or