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## Science Labs For Middle School

Jay Said:

Where can I get free Earth and Space Science lab materials?

The first two sites have an underlying agenda but, when it is free .....
The others may have an agenda as well but at least it isn't in the name.

I would not think you would be required to tell where you got them anyway.

Kent Said:

Can you recommend a microscope?

i don't know anything about microscopes but i stumbled on a website about the best brands of microscopes.

http://toolmakermicroscope.com/toolmakerâ€¦

perhaps you could go on www.amazon.com or www.dealnews.com or wherever it is that you go to find them.

Jenny Said:

What is the relationship for a volume of water and the time it takes to boil the water?

Well... break it down to formulas. 1 calorie is the energy needed to heat 1 gram of water by 1 degree celcius.

So to heat 1000 grams of water (1 liter) by 1 degree, it takes 1000 calories. Now double the water to 2 liters and it will take 2000 calories.

If you are adding heat at a rate of 1000 calories per minute, then 1 liter of water heats at 1 degree celcius per minute and 2 liters heat at a rate of 1/2 degree celcius per minute. So yes. It is linear.

HOWEVER (there is always a however) there are many factors that go into this in a lab setup. Namely, a larger volume of water will have more surface area and disipate heat to the suroundings faster. Also, a larger pan (wider) will heat faster than a taller pan. Etc, etc, etc.

Harvey Said:

what is a good science lab for middle school of high school students?