To decrease the brightness of the bulb I took away 2 batteries out of
4 batteries. This decreased the brightness because there was less
energy in the circuit. If I did it again I would do light increasing.
The results are reliable because we checked the circuit and they make
a reliable conclusion.
Wednesday, March 30, 2011
Investigating brightness in light Hayden Jack and Ryan
To increase the brightness of bulbs I added more batteries. This increased the brightness because there was more energy running through the wires.
Investigating brightness in light Aaron Kyle Ben
The less wires the brighter the bulb, the more wires the less brightness comes out of it. Also , the more equipment on the circuit the less brightness will come out of the light bulb , because everything needs at least a bit of energy so it will not be as bright then when it's by its self having all the electricity.
Tuesday, March 29, 2011
Monday, March 28, 2011
Friday, March 18, 2011
Shadows
In science we are trying to find out what happens to the length of our shadow as the angle of the sun changes. We stood in the same place at different times of the day and drew around our shadow.
What happened to the length of our shadow?
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