en sure the
re’s a little
space fo r the
circuit
fi ll � th water
ma� sure boo�s
are �
same he ight
you can also � y
wi th o�
r li�uids
With brig�t L��
s� ne lig�t fro
m t� .
place light sen sor under �
cup an d read the
number
value mode
x�
cove r glass
of water � th
plasti c wrap
measuring the atmosphere
PROJECT 4:
Learn how satellites detect particles in the atmosphere.
TimE:
30 mins
diFFiCulTy:
Place glass of water over the space between two books.
yO
u
’l
l
N
EEd
pen
boo�
glass an d
water
mil�
boo�
power
wire
wire
light
sensor
number
bright
led
turn
me on
on li�ht mode
adjust s� siti vity
wi th screw drive r
Orient your circuits above and below the glass.
Measure the amount of energy passing through the
bottom of the glass. Record your data.
Make these two circuits.
1
2
3
16
drin� �
s� aw
plasti c
wrap
The n�mbers
you observe
are �
“da� �
you are
gathe
ri�
plasti c
This project is similar to how satellite
instruments measure the atmosphere.
Since aerosols and gases scatter light
differently, NASA instruments can determine
the composition of the atmosphere by
measuring how light is scattered.