Many people say that ghosts are fake. They say the same about dragons, elves, fairies, leprechauns, wizards, witches, mermaids, monsters, and Greek gods. But are they correct? Can anyone prove that they don't exist? I mean, sure, no one has ever seen them. But have you ever seen a million dollars? I know I haven't, but that doesn't mean it isn't real. I mean, just because you can't see something, doesn't mean it's not true.
People call these myths. They call them myths because they haven't been proven. Basically, with some of the human race, if it can't be proven, it's not real. I find that stupid. I mean, no one can prove God is real. But people know he is. Well, not all people. Some people don't believe in anything. Personally, I don't believe in ghosts. Super Sara says that the ghosts will kill me, but she shouldn't talk. She doesn't believe in the Greek gods. But no matter. She'll believe in them when Zeus zaps her with a lightning bolt.
Zeus about to strike Super Sara
Anyway, there has been 'evidence' of ghosts, but not Greek gods, witches, wizard, etc. I mean, there's a logical explanation for most of it, but still people believe. Well, I'm sure that if I heard my son speak from the dead, I'd believe, too, but no matter. My son isn't dead because I don't have a dead son, and I never will have one. Personally, I believe in dragons, Greek gods, and wizards, but hey. Everyone believes in something supernatural, right? I mean, we all what something that's not 'real' to be real, if you know what I mean.
Here's a video:
Okay, I know what the video said. The video is made for people so that they can believe in ghosts. What a bunch of baloney. Of course, you might have a different opinion, but mine stays the same. Okay, I know dragons, witches, wizards, Greek gods, and all the other, I know that they don't have photos or videos or whatever, but still. I believe in them, and many other people do too. The thing is, many people write about the supernatural. So, in a way, they're still real. They're real in peoples minds and on the pages of books.
Okay, so I have no idea what these words mean, so it looks like I'll be learning something as well as you! So... acids and bases. Good stuff, weird stuff, I-have-no idea-what-those-words-mean stuff, whichever you prefer.Personally, I'd go with the last one, but no matter. That can be changed, if you pay attention.
A base: soap
Okay, so you know how lemon juice and vinegar taste sour? Well, for thousands of years, no one knew why. But now we know these areacids. The word acid comes from the latin word 'acere', which means 'sour'. In the seventeenth century, the Irish writer and amateur chemist Robert Boyle first labeled substances as either acids or bases. Here, mabe this will help:
Acids-taste sour, are corrosive to metals, change litmus red, and become less acidic when mixed with bases.
Bases- feel slippery, change litmus blue, and become less basic when mixed with acids.
Okay, so maybe you're wondering what litmus is. Well, so am I, for that matter. So let me just look it up... ah, yes, here it is. Litmus is a dye extracted from lichens. Doesn't really help. So now I have to look lichens up. Great.... Perfect. It doesn't give a reasonable explination. This is what they gave me:
"Lichens are made up of two, and some times three, different organisms from three different Kingdoms, which form a symbiotic relationship with each other for their mutual survival."
Doesn't really make sense to me, but maybe it made sense to you. Right now, though, I have to tell you about bases. 'Kay, here we go.... That's interesting. They gave me a different definition. Here, I'll put it on, just in case you didn't get the first definition. Acids:
react with zinc, magnesium, or aluminum and form hydrogen (H2(g))
react with compounds containing CO32- and form carbon dioxide and water
turn litmus red
taste sour
Bases:
feel soapy or slippery
turn litmus blue
they react with most cations to precipitate hydroxides
taste bitter
So,if you'd like to know some common acids and bases here they are:
Acids:
lemon juice
vinegar
stomach acid
battery acid
many vitamins
Bases:
soap
dishwashing liquid
egg whites
ammonia
blood
Alright, so if you don't know this already, there's something called a pH scale that you can use to tell how strong an acid or base is. The highest acid is a 1. The lowest acid is a 6. The highest base is a 14. And the lowest base is an 8. Water is nuetral. Here's a picture:
Okay, so maybe you're wondering what happens if you mix them together. Well, the answer is relatively simple: the base will make the acid neutral, and vice versa.
Hello, people! Okay, so we're not completely finished with the periodic table of elements. The stuff I'm going to talk about today has the periodic table in it, but it's not all about the periodic table. So... chemical and physical reactions. It's pretty hard to understand, but not super hard. But, it is, in fact, high school stuff. So if you wanna get ready for high school, then be prepared! It's gonna get hard!
Let's start with the basics. First up, chemical reactions! 'Kay, chemical reactions are basically when you make one thing change into another. Like, say you have a match and a piece of paper and you light the piece if paper on fire:
Paper on fire
Okay, so when the fire consumes the paper completely, it will turn to ash. It can never change back into a piece of paper. That's a chemical change. A physical change is different. A physical change is a change in appearance. Say you have another piece of paper. If you crumble it up, it's still a pice of paper. You didn't change that.
Crumpled paper
Now let's talk about products and reactants. But first, here's the real definition of a chemical and a physical change:
Chemical Change: produce new substances that have properties different of the original substances.
Physical Change: affects only it's physical properties, such as size and shape, or whether it's a solid, liquid, or gas.
Product: the substances that form as a result of the reaction
Reactants: the substances that exist before the reaction
I know this is hard to understand. I really do, seeing as I'm the one who has to learn it. Basically, a product is what you start out with, like a match and a piece of paper. A reactant is what you finish with, like ash. Here's a video:
