have any ideas for a science fair project involving chemicals?

Question

Please I'm in junior high school (7-9 grade) and really want a good idea to win the science fair.

Answer 1

U could do a comparative analysis of the fat content of your cafeteria foods. Using a fixed mass of each food, extract the fat by mixing with petroleum ether, filtering and collecting the filtrate then heating to drive off the solvent. U could then find the mass of fat that remains (of course you would nned to know the weight of the empty beaker etc bofore anything ws added). Do your percentages, graphs etc. and you are good to go.

Answer 2

All are extremely speedy Does soda lose its carbonation quicker at chilly or warm temperatures? How does comfortable drink acidity impact distinctive metals? How does the form of an ice cube impact its melting? What fibers take up the main fluid? which cheese grows mildew the quickest? Will salt have an effect on plant improve? Can a plant advance with out soil? attempt improve in distinctive aspects. Which grass stands as much as drought the superb? Does draining water continually spiral in an analogous course? music, does it impact our memory? Does the colour of text fabric impact memory? scent and style, is there a connection? Is utilising 2 eyes to decide distance extra precise than utilising one eye? How effectiveness are countless insect sprays and repellents? Does an earthworm react to easy and darkness? Does music impact the habit of canines? How are clouds formed? can we make our own? Do ocean waves bounce?

Answer 3

What about testing the pH levels of water and their effect on growth.
Use a filtered water with pH as close to 7 as you can get as your control.
Combine water from the same source with an acid and a base to alter their pH levels.
Ensure all plants recieve the same amount of light and see how they grow.

You might also try experiments in Chromotography.

Answer 4

use elemental sulfur
place it in a glass container with a rose bloom and ignite it the sulfur.

you'll want to use a metal or glass container for the sulfur

let the sulfur smoke fill the container.....wait a few moments..rose bloom turns white!

use a container that can be sealed, like an aguarium with a piece of plexiglass placed on top.

do your research, and explain what causes the sulfur bleaching of the rose bloom.
collect trophy hehe!

Answer 5

haha I dunno do one explaining ph indicators and why they change color in acids and bases I MEAN GOD JSUT LOOK AT THE PRETTY COLORS, well I have no idea if you could get any haha

Answer 6

Lsd, lol jkin.