Wednesday, February 25, 2009

Water Pressure

Different Kinds of shoes and how high the Jump

How Satellites send signals

Cat Paw Preference


To test feline handedness, or pawedness as you prefer, Professor Cole had 60 randomly-selected cats reach into a glass tube for some rabbit meat. Of the 60, 35 showed a noticeable preference for one paw over the other (i.e., same paw used in at least 75 out of 100 tries). Of the 35, two-thirds were left-pawed. Cecil finds this interesting because he himself is a lefty, a much-oppressed minority. I haven't previously had much use for cats, but when I see one now I'll think: "Hey, bro!"
Paw/claw/whatever preference is actually pretty common in the animal world, having turned up in most species tested, including parrots (mostly lefties) as well as rats, monkeys, and chimpanzees (50-50 right versus left). Why should there be a preference? One plausible guess is that it helps the animals learn faster. Professor Cole noticed that cats with a dominant paw figured out how to get the rabbit meat out of the tube faster than the ambidextrous cats. Presumably if you practice constantly with one paw, you become more skillful than if you squander your playing time on two.
— Cecil Adams

Bean Germination


Electricity With Fruits and Veggies


Different Effects on Bread in Different Environments


Wing Size Versus Lift

Electric Circuits


Bouyancy


I am working on a bouyancy project and I tried a egg in water experment it sunk untill I added 4oz of salt then the egg floated to the top.Then I tried an apple in the water supriseingly it was floating and the rest of the project will be finished in due time.

Fingerprints


Hi! My name is Sara! And I am doing my project on Fingerprints.
There are three main types of fingerprints. The Loop, the Whorl, and the Arch. The Loop looks like a sideways loop. A Whorl looks like a bunch of bigger and bigger circles. And the Arch looks like a mountain. What type of fingerprint do you have?
I am trying to find out two things. One, what percentage is there of each fingerprint? I am gathering 100 fingerprints and seeing how many of each are there. Two, can a person have more than one type of fingerprint?
Well, that is all I know for now. Bye!!!!

Radio Waves


im testing what blocks radio waves the best and does it matter if the thing thats blocking it thicker the a nother.And does it matter how stronge the signal is.I am taking a couple little reacevers from a air plane and a motor car and vs them using the same blockers.

Air Pressure


i'm trying to show how air pressure affects are weather, I am going to show a (EXPERIMENT) to prove my question by making fog particles. I will try to show it by using a bottle with a long neck and something to hold it in to show my experiment!! :)

Wind Power Generation

im going to build a wind power generator, it will generate energy by wind or by turning a crank. I am hoping to power a small lightbulb with my generator.When you turn the crank it will move a series of gears that will produce energy.