a measure of sound

today maddy, lilly and i did the measure of sound lab. at first we totally messed it up by only put the wire on one end (my bad) and then didn't coil the wire tight enough. we never really got it above 400 so i'm not sure it was a success but if we had like 10 minutes more we probly could of figured it out.

craters lab

today alice, lilly, and i did the craters lab. it was really fun to play with the flour. there was an obvious pattern in the drops (inches):
the compass ball's width increased by 1/4 each time (every 2 inches)
the ping pong ball' width increased by 1/2 the fist time and stayed at 3 for the rest
the golf ball's depth incresed by 1/2 each time


:P

motors lab

so today we did the magnetic motors lab with me, maddy and rose. the first part of the experiment we did and i didn't work but then we realized that we had to tape it on both ends and it worked. the second part of the lab was kind of confusing and i tried to make it but i didn't strip enough green stuff of the copper for it to work. it was fun and i liked trying out different situations to get it to work.

Planets

recovery systems

today we played with parachutes. madeira, taryn and i each made our own parachute. taryn's bag was cut in half so it was smaller and had a hole at the top. madeira's bag didn't have a hole at the top and it broke. mine had 4 strings and a hole. the hairdryer kind of burnt it so we went to the stairs. it went pretty smooth but then one of the strings broke and it flew much softer.

law o gravity

F=MA