Science Experiments

Nearly all baked goods contain small amounts of salt.

Just a few of countless other products made from salt - or for which salt is used - would be water softener salt, pool sanitizer, ice melting granules, skin softeners, cosmetics and salt licks for animals.

experimental

Silver and copper

fifteen turtles are fed iceberg lettuce and vitamins, while another fifteen turtles are fed only iceberg lettuce. :) APEX

The formula mass of sodium carbonate, Na2CO3 is 2(23.0) + 12.0 + 3(16.0) = 106.0Amount of Na2CO3 = mass of sample/molar mass = 0.75/106.0 = 0.00708mol

There are 0.00708 moles of Na2CO3 in a 0.75g pure sample.

The reason for the experiment is to answer the problem

This is not a valid conversion. Cubic centimeters (cc) is a measure of volume. Grams (g), kilograms (kg) and milligrams (mg) are measures of weight or mass.

yes

Thomson discovered cathode rays when he was working with electrons. He was performing experiments with the electrons when one of them became electrically charged and a beam of light came from it, this creating a cathode ray.

This is an example of incomplete dominance.

The group which does not receive experimental treatment is the control group, the group which does receive the treatment is the experimental group.

In a controlled experiment only 1 variable is being tested.

Dark circles seen when looking into a microscope are due to the presence of dust particles or debris on the lens. These particles obstruct the passage of light, leading to the appearance of dark areas in the field of view. Cleaning the lens can help to eliminate or reduce the visibility of these dark circles.

He didn't just study one trait at a time he studied single gene traits, with clear dominance versus recessiveness. Single genes produce genotype ratios 1:2:1 & phenotype 3:1

He did study dihybrid crosses where he tracked two single gene, unlinked traits. Dihybrid ratio genotype pattern is 1:4:6:4:1 while the phenotype is 9:3:3:1

Mendel's peas were domesticated with easily distinguishable single gene phenotypic traits (short vs tall; wrinkled vs round; greed seeds vs yellow seeds). Peas only have 7 pairs of chromosomes and Mendel used 7 visibly distinct, single gene traits that assort one to a chromosome pair. Each trait he studied shoed complete dominance, not with blended (incomplete dominance), or checkered (codominance).

The difference is that single gene traits are controlled by the alleles for just one gene.

Not all traits are single genes however. Most traits are polygenic, influence by multiple genes.

Polygenic traits do not produce progeny with clear whole number ratios for each version. Instead the progeny show a normal distribution curve where most progeny have the average value but the are individuals at each extreme.

It was the good sense or good fortune that Mendel did choose to study single gene traits so he could discover the ratios that provide the evidence for his laws of inheritance.

Au is the elemental abbreviation for gold.

Conducted a lab at school measuring the strain on a soda can when it was opened. Back solving for the force as if the can were a thin walled pressure vessel led us to P = -54.447 +- 0.047288 Psi to 95% confidence.

soapy water does make nails rust because of the soap mixed with water are two different types of liquids which also makes it faster to rust

The Steady State Universe was an enhancement of upon Albert Einstein's Static Universe and was proposed in 1948 by Hermann Bondi, Thomas Gold, and Fred Hoyle. The revised Steady State Theory was based on an extension of something called the Perfect Cosmological Principle, which holds that the universe looks essentially the same from every spot in it and at every time. Or more simply stated, the revised Steady State Theory promotes that new matter and energy are continuously created as the universe expands and the rationalization for an ageless universe.

Equipment had limited display, student ruler can measure up to a mm and for a string of 10 cm it will have error of at least +/- 1mm. An experiment usually required to measure many thing like mass - volume - length - energy and each of these little error would sum up to the experimental error.

pollo brujo and pollo hechisados

Randomizing the unwanted variables is one method of building a stronger causal argument. Controlling or a strong attempt at controlling the unwanted variables would be recommended. One variable, and only one should remain independent; this would ensure the dependent variable could be assessed in the proper light. Eliminating unwanted confounding variables my be necessary for a stronger causal argument; the confounding variables distort the conclusion in the causal argument. Eliminating unwanted variables could mean categorising data; it could mean separating data; it could mean some guess work, such as adding/subtracting figures like a statistician.

It's the level of how much you do in the experiment. Such as when you test a fertilizer, you would do a control test with no cups of fertilizer, and a couple more with 1 cup, 2 cups, 5, 10 50 or whatever you choose.

Try out this website for over 500 different ideas for a science project: http://www.all-science-fair-projects.com/