MicroLog™ data logger

1 - clear plastic food containers without lid (deep enough to place the MicroLog™ standing up in the container)

plastic wrap (large enough to cover the container)

bubble wrap (large enough to cover the container)

rubber band

dirt

sand

sugar

clock

In order to measure percent humidity, your MicroLog™ has four small slits on its backside. This must be open to the air during the activity. Turn the MicroLog™ in the container so that the slits are open and not resting in the dirt.

The weather conditions will affect the results. This activity can be performed during any season but should be done in full or partial sunlight. Select a time during the day when the amount of sunlight is relatively the same throughout a twenty minute period. If necessary, a sun lamp indoors can be substituted for sunlight.

Caution: Do not look directly at the sun as eye damage will result.