I need a science experiment quick!The idea is due tomarow and I would like it to be about water and aquatics.?

Question

Well, I really need one quick and I want to do one on water and aqutics. I would like to win on the places too. Seventh to eighth grade level please.HELP?!?!!!!!

Answer 1

Ok, hears a bit of a cool one: What you need is a candle, a dish (small plate with a rim) some water, a glass cup, a dime and some red food coloring.

put the candle in the middle of the dish. Put the dime in the dish but not near the candle. Fill the dish with water so it covers the dime (use red food coloring so it'll show better).

For the presentation, light the candle, then put a glass cup over the candle. After a little while, the candle will have used up the oxygen in the cup and will start searching for more. It will actually creat a vaccume in the cup, and suck up all the water into the cup, extinguishing the flame. the dime can then be picked up and will be dry!!!!!

You just need to explain how the vaccume occured and you will have a good chance at impressing a lot of people :)

i also used that trick as an object lesson for a Sunday school class at my church. The dish represented the world, the candle Jesus, the red water sin, and the dime us. We were covered in sin so God coudn't free us without touching the sin. So he sent Jesus (light of the world, get it ) to take our sins from us. When he died, all of our sins whent from us to him, so we wouldn't have any sin and God could take us.

Very cool presentation.

Answer 2

Get two or three tanks or glass bowls. Fill with water. Add living thing like a water plant (aquadic store or maybe already avaible in class) or sea monkies (also known as brine shrimp they can usually be bought at a Spencer's gift if you have one near you or any aquadic store.) Add a little salt everyday to find the living thing's favorable salinity (amount of salt they can handle) For each bowl/tank add a different amount of salt and record and observe the changes in health and/or behavior of the stuff inside.
Cool Huh?

Answer 3

A science project should involve comparison of different entities, which could be the same item at different times or two (or more) different items. The project should be long enough that it takes longer than a few minutes, but short enough to hold the interest of the experimenter.

The ideal subject for meeting these criteria is RADISH SEEDS! Initial results can be noted in two or three days, the experiment can be as simple or as complex as the researcher desires, and the final results can be shared with a class... or eaten!

Growing medium:
simple... outside in the soil
medium... inside, in pots (boxes, cartons) filled with garden soil
complex... containers filled with sand (no nutritive value) with added elements

Growing conditions:
simple... outside with a box covering some plants to control light
medium... inside with several covers to allow different amounts of light to hit different plants
complex... differences in light amount & type (sun or artificial), heat, humidity (wrapped in plastic to keep moisture)

Moisture:
simple... outside, water some more than others
medium... inside, water daily or every other day
complex... apply water to soil only, apply water to soil and leaves, mist leaves only with little water to soil

Nutrients:
simple... outside, add some fertilizer to some
medium... inside, add different items (fertilizer, (coffee grounds, etc) to soil
complex... add different elements (nitrogen, phosphorus, etc) alone or in different combinations and concentrations

In other words, these simple seeds can provide opportunities for scientific investigations for every age from preschoolers (who may simply plant and watch) to PhDs doing advanced research. This may eventually be extended to other plants and create a lifelong interest in botany.

I'd still be doing my own studies of these seeds, but radishes make me burp! LOL

Answer 4

Hero's fountain won me the science fair when I was in seventh grade. It is fun to put together and always fun to watch. Use the title: "Can air move water?"

Answer 5

Try this website
http://www.energyquest.ca.gov/projects/index.html