Make an orbit of elements
By hand
i dnt know..i myself want a answer ...............pl. if any 1 knoes help me...........
water conservation
Well a chemistry class for a freshman year would basically be chemical problems and lots of algebra work (since most 9th graders haven't taken geometry yet) If you can avoid taking chemistry freshman year, I would recommend it. But
dynamics
grow chana on the carboard
In order to find out how working models for computer exhibitions works you will have to do a few steps. You will first have to go online and download the books of information.
i wont tell the answer get lost
battery charging shoes
a ship
This would depend on what area in chemistry the model is being made about. Chemistry involves a lot of different aspects, more information would be needed to correctly answer this. If just wanting anything one can make a lava lamp.