I need some topics for 7th grade science fairHowever, there are some limitations:No people involve (taste test, math test, etc.)No paper towels, cleaning suppliesPLEASE HELP!!!!!!!
What if you tested the lifetimes of various batteries (energizer, duracell, rechargeable, etc.) to see which ones lasted longest? What if you tested the surface tension of water different conditions? (saltier water, warmer water, colder water) You could test this with a bowl of water, a piece of aluminum foil, and something light to use as weights- such as cheerios What if you tested the effects of various substances on plant growth? You could pot several identical plants in a windowsill, with one as a control and the others with substances such as milk, coffee, rice, fertilizer, etcAfter a couple weeks you could see which ones grew best I hope this helps, if not there are plenty of sites online loaded with ideas.
earlier you place a wrench to the brake strains, pay attention that the motor vehicle has what's talked approximately as an accumulator that sits mind-blowing there with the grasp cylinderthis is touching directly to the scale of a softball, probably black, and incorporates brake fluid below very intense tension that must be depressurized earlier you open the equipmentin case you fail to try this, then you definately're in for a ask your selfThe source of this archives is from the 1990 Cadillac production facility provider handbook.
