#science8

[studyingsian]

4.24.17// This was from a webquest where we had to answer 8 questions about, you guessed it, biomass and biodiesel.

[studyingsian]

5.18.17// Some notes on polymers!

[studyingsian]

[3/11/17-4/14/17]  ↳ Science 8 notes! This was from our unit on carbon.

[realakibams]

Cartesian Diver (Dec. 8, 2011)

Cartesian Diver (Dec. 8, 2011)

Materials:

Soda bottle (empty) 

Bendy straw 

Rubber band 5 paper clips 

Soda bottle: 

Diameter=17 

Radius=8.5 

How to make:

Bend the straw on the top where the openings are even 

Tie sides together with the rubber band, but make the holes have air 

Attach the 5 paper clips to the rubber band 

Test the diver in a little bit of water, and make sure it stands 

If that works, full up the soda bottle full, drop the diver in, and close it shut 

Shake the bottle to add pressure 

If you have successfully completed the experiment, when you push on the sides of the bottle, the diver should go down, and when it's left alone it will float back up 

Results:

If all goes well, squeezing the bottle will force the diver to dive, and no pressure will make the diver shoot up

Here is a JPEG of the notes if anyone would like to download them: