Science Buddies: "Ask an Expert"

Posted: **Sat Nov 07, 2015 8:14 am**

In the science experiment it says that you are supposed to leave the daylight blue 100 watt lamp pointing to the water for 12 hours.I have a daylight blue 150 watt lamp how long am i supposed to leave this one pointing to the water.

I need help ASAP my science fair deadline is ending soon.

From Julian

Posted: **Sat Nov 07, 2015 9:14 pm**

Hi Julian,

100/150 x 12 = 8

So instead of 12 hours with a 100W lamp you would use 8 hours with a 150W lamp to get the same total light exposure.

Any other questions?

Sybee

Science Buddies: "Ask an Expert"

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