Monday, September 8, 2014

Crash course biology by Hank Green #2, Water - Liquid Awesome.

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We are loving this crash course biology by Hank Green.
Hank is very
entertaining even though he is teaching biology.  C15 is actually on lesson #10 but it just takes me a while to post the lessons because I am so busy raising my girls and working but I will get to everything eventually.

Here are a few things we learned from Hank.

*water is indeed liquid awesome.

image from the web
*all life depends on water.

*water can present in solid, liquid, and/or gas form.

*water has the highest cohesion of any nonmetallic liquid.


image from the web
*water can defy gravity through a process called capillary action.

*water is an amazing solvent.

*more substances can be dissolved in water than any other liquid including acid.

*water has a high surface tension.

Here is a fun experiments with water.
Science kids-water defying gravity.

image from the web
Here is a youtube video for water defying gravity.

Here is a great animated webpage with surface tension and capillary action.

Here you will find a higher level definition and explanation for a few of the terms above.

This lesson was pretty easy and short.  Next up for crash course biology is Biological Molecules-You are what you eat.  You can find that lesson here.

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Thanks for horsing around with me. You really never know what you will get when you read my blog so thanks for stopping by.