Science Experiments

Most likely salt water. The salt accelerates the rate of corrosion, plus it has the oxygen needed for the metal to rust. Tap water has the oxygen too but with the salt also, it would cause the metal to rust more rapidly.

The labeling of the vinegar bottle with less contents than what was actually in the bottle might have been because they thought a little might evaporate before it was purchased by the consumer. Sometimes companies will do this so as to account for loss during settling of contents.

the seed will sprout

water, long boots water

Properties of an ideal gas:

1) volume is negligible as molecules are far apart.

2) all collisions between molecules are perfectly elastic, meaning that all energy is conserved.

3) there are no attractions between the different gas particles

4) ideal gas obeys the law PV=nRT where n is the number of moles.

*most gasses conform to ideal gas properties, except at low temperatures and high pressures

what is the factor that can change an experiment

30 words. In my intro to psych class at Wayne state unversity we recently did this experiment. Be sure to mention the primacy and recency effect (being able to remember the frist and last words better than the middle words).

Alphonse Bertillon created anthropometry- which is the measuring of an individual for the purposes of understanding physical variation. He brought to light ear identification and ear print identification in 1879.

the difference is that the substances is aparent only on the atomic or molecular level.

Ripening is a chemical process.
Ripening involve many chemical reactions.

In 1913, by using x-ray spectra obtained by diffraction in crystals, he found a systematic relation between wavelength and atomic number, Moseley's law.

Technically, as long as you record the volume of the solution and are sure of the concentration, you could extrapolate the weight.

Chance

Matter

The branches of earth science are so many and they have various roles. Some of them include geology which deals with land formations, oceanology which deals with oceans, meteorology which deal with weather and climate and so many more.

independent variables are the ones you change (how much watter to give the plant)

dependent variables are the result (how tall the plant is)

constant variables are ones that don't change (the type of plant)

people believed on spontaneous generation and now they don't after his discovery!

it is called an element.any atom of an element is the purest for of an element.

atoms consist of electrons,protonsand neutrons.

A hypothesis.

change of state

The density of air changes with change of temperature, therefore changing it's mass. In other words, the molecules that make up the composition of air move farther apart with a rise in temp and, of course, just the opposite with a decrease in temp. Since temperature changes the mass of air, gravitational pull from the earth will change proportionately.

Of course. No readings can be made without some error.

yes just ask moses