Science Experiments

A Elena Lopez is a very pretty girl, and is loved by everyone in the world. Especially Thomas!

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The "living tree" experiment was a scientific study performed originally by Jan Baptiste van Helmont (1580-1644) and thereafter repeated by several other scientists in the decades and centuries following. Van Helmont measures the weight of the tree at the start of the experiment (five pounds) as well as the weight of the soil (200 pounds). After five years of regularly watering the tree, van Helmont noted that the soil only lost about 2 ounces of weight while the tree weighed an astonishing 164 pounds. He concluded that because the tree did not gain all this weight from the soil, it must have gained it from the water intake. Although we now know that plants gain much of their mass from photosynthesis/carbon dioxide as well as soil, van Helmont's experiment has been lauded as an early example of strict attention to detail and experimental controls.

i have no idea tell me

yes for a good science fair you would you need a title, question, aim, abstract, hypothesis, method, variables, results, conclusion, bibliography and thanks

i would think so

It depends on the substance. Some melt when heated (ice), some evaporate under heat (water) and some become solid when chilled (water into ice). It would be called their melting point, the freezing point and the evaporating point.

A variable within an experiment that remains the same. Such as the weight of a pendulum.

taktee.hindi ko nga alam eh kaya ako nagtatanung tapos ako din pala ang sasagot T-T awts </3

the sources of biomass energy are garbage, wood, waste, landfill gases, and alcohol fuels.

me and my friend gib did one last year. we did how hockey stick flex affects a shooter accuracy!!! LOL

Because he discovered the direct relatioinship between the volume of a gas and its temperature

use equal amounts of soil and water, two pans of the same size, an oven, and a thermometer.

Is the question, 'ARE you doing a science fair project on recycling?"

Well, I'm not. My school doesn't have science fairs. XD

Here is 8 interesting facts that I found online:

-It is the 5th largest river in North America

-It is the longest river in Alaska(I said longest! not nessessarly the largest!)

-Yukon River drainage basin is 25% bigger than Texas

-Yukon actually means Great River

-Volcanic activity may have blocked or at least altered the Yukon River

-The Yukon River has 4 bridges that carry vehicles.

-The Yukon River is home to one of the longest salmon runs in the world

-In order to travel so long on the Yukon, the fish must have fat to burn off, making the Yukon fish known for their especcially rich and oily meat

Hope this helps!

In short, yes.

Bunnies!!!! just kidding um how about die yeast die or which disinfectant makes the bread go down idk sry : (

The truth: Really how strong is hair

Gneiss is typically harder than granite due to its higher metamorphism. Gneiss is formed from rocks that have undergone intense pressure and heat, which results in a stronger and more resistant rock compared to granite, which forms from the cooling and solidification of magma.

No sweetener.

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Draw a valid conclusion for that experiment.

i dont know. are you doing this as a science project thing? r u in middle school?

The paper clip is more dense than the water, and it will sink. Water does not have sufficient buoyancy to support it. As regards density, the metal in the paperclip has more mass per unit of volume than the water does.