Science Experiments

Posts Tagged ‘experiment’

Question: Science fair help please!!!!!?

My science fair question is: “What is the difference in buoyancy between quicksand and water?”. I need the control of the experiment. HELP!!!!!

Answer: The buoyancy of water is the control.

A control Isolates Variables in experiments. Since Water is the standard for buoyancy (1) it is always going to be the control when comparing to others.

Keeping Science Real: Quicksand Experiment

Question: help! Science assignment ideas? global warming?

I am currently in year 10 of high school. For science we have to create our own science assignment. We did this last year, however this year my science teacher says it must be an “important issue” at the moment. Something relevant, and more complex than mould growth.
I thought about doing it something on global warming, perhaps about temperature, but I have no clue how to go about it. I have looked /everywhere/ on google, and I cant find anything practical. I am not able to use dry ice either. Please any suggestions about how I can do my experiment on global warming, perferable really simply. Or any other suggestions? for other ideas on experiments

Answer: ya there is nothing practical on anthropogenic global warming because everything it is based on has been dis-proven, so you may wanna look into another one of these B.S. theories people seem to be holding onto these days i.e. 2012, earthquakes being irregular, GM and “non-organic” being bad for you, etc, etc….

water pollution is a big issue these days. try doing a runoff simulation on different types of ground cover (grass, mulch, nothing, etc.) and measure the amount of runoff water and sediment in that runoff water.
it’s simple, but there is a lot of information you could use to draw conclusions.
Hint: look into vegetative buffer strips and eutrophication

Marissa’s Science Experiment — Dry Ice

Question: lightbulb experiment?

i’m studying for a chemistry quiz in lab.
i’m a little confused about the lightbulb experiment results bc i wasn’t there for the experiment.

when using these solutions below, does the lightbulb burn bright, dim, or not at all?

non-electrolyte= doesn’t burn at all (correct?)
electrolyte= ? (burns yes, but bright or dim?)
weak acids and bases= burns dim? or does it depend on if it’s an acid or base?
strong acids and bases= burns bright? or again, does it depend on if it’s an acid or base?

neutral pH= ?

thankyou so much for any help.

Answer: I have not done your lightbulb experiment, either! But it is straight-forward.

non-electrolyte= doesn’t burn at all (correct)
electrolyte= burns (bright)
weak acids or weak bases= burns dim. It does NOT depend on if it’s an acid or base.
strong acids or strong bases= burns bright. It does NOT depend on if it’s an acid or base.

neutral pH= Depends on if the liquid is pure water or an electrolyte solution

Blue Bottle Reaction ( Chemistry Experiment )