Do you know what I know?

I had a friend share with me this week "science verses God." it has me really thinking about the contrast. It was more of a science lesson than anything else. 
Most of you know, I am a follower of Jesus Christ. For me, I believe there is a God- Father God, the One Living God, maker of life, and Prince of Peace. 
Scientist need absolutes and tangible answers or reasonings. They do need faith that their projects are going to come out the way they predict, right? 
I am not here to discount anyone first and foremost! I am not here to argue any facts, so please do not write me and try to attack my thoughts because I won't attack yours. Fair?
Is there such a thing as cold? No, just the absent of heat.
Is there darkness?  The answer is no, there is only the absence of light.
Scientist say that humans have evolved from monkeys. Has anyone seen this actually done? As a human is incubated in a womb has been proven, has the evolved monkey been proven? Would someone please tell them to show us the proof as it happens and they may have more believers.

One last question, has your friend seen your brain? Yes, has your friend seen your brain?
Then, wouldn't it be more accurate to say that your friend has to go on trust that you have a complete healthy and in fact a brain. 

Okay, so where am I going with this you wonder.  Well isn't it a fact that we forget what we have learned in science class and that there are some things in life we have to trust in what we cannot see.  Just like with God, we can't see him physically and in our hearts we know now faith is the substance of things hoped for, the evidence of things not seen.

So what do you know? What can you not see that you trust in? Than why not give God a chance and believe in him, though you cannot see him?