SESSION 1: 1 hour
Remember what is the matter by reading this text and by watching the video.
WHAT IS THE MATTER?
You could say that chemistry is the science that studies all the stuff in the entire world. A more scientific term for “stuff” is “matter.” So chemistry is the study of matter. Matter is all the physical things in the universe. All the stars in the galaxies, the sun and planets in our solar system, the Earth, and everything on it and in it are matter.
All human-made objects, all organisms, the gases in the atmosphere, and anything else that has mass and takes up space, including you, are examples of matter.
Chemistry is special because it looks at matter all the way down to its smallest parts: the atoms and molecules that matter is made of. To give you an idea about how small atoms and molecules are, use a metric ruler to look at the length of one millimeter. It is about the size of a dash like this one -. Try drawing a tiny line or dot that is about 1/10 as long as the dash. It might be about the size of a period like the one at the end of this sentence. A hydrogen atom is about 1 ten millionth of the size of the period. So it would take about 10 million hydrogen atoms lined up next to each other to go from one side of the period to the other.
Here is another way to imagine how small atoms and molecules are. In about 1 tablespoon of water, there are about 600 billion trillion water molecules. That’s 600,000,000,000,000,000,000,000. This number is so huge that even if you could count one million molecules every second, it would take you about 200 million centuries or about 20 billion years to count all the molecules in a tablespoon of water.
Studying chemistry can help make sense of many of the different things you see and do every day. What you eat and drink, the weather outside, the soap and water you wash with, and the clothes you wear, are all a result of chemistry. The sports equipment you use, the materials your house is made of, the way you get to school, and the electronic equipment you use are all a result of the interactions of atoms and molecules.
Having a better idea of what atoms and molecules are and how they interact can help you better understand the world around you.
Matter is made of atoms and molecules We have already used the term atom and molecule a couple of times. You will learn a lot more about atoms and olecules in later chapters. For now, let’s say that atoms and molecules are the extremely tiny particles that make up all the matter on Earth. An atom is the basic building block of all matter. A molecule is made of two or more atoms connected or bonded together.
Even though atoms and molecules are not the same, the model we are using in this unit shows both atoms and molecules as little circles or spheres. This model makes it easier to show some of the basic characteristics of the different states of matter on Earth.
Now, watch this video.
what's matter no no not what's the matter
obviously since you're here with me you're pretty awesome at the moment you
might have heard that everything is made a matter
and that's true you soccer balls iPad's
even your pet fluffy Almeida matters soul that's interesting
but what is matter exactly the
the scientific answer is matter is anything that has weight
and takes up space you already know about Wat right
that's just how heavy something is like if you ever been to a doctor's office
the first thing they do is have you stand on the scale
so they can measure how much you weigh as for taking up space
another way of thinking about it is that all matter has volume
it simply fills the air yet its it when you pour water into a glass for example
the waters volume is the amount of space that it takes up
in the glass so all matter has volume and weight
but it sure does it all look the same well that's because matter comes in
or state liquids our state a matter that I'm sure you're familiar with
if you've ever record yourself a drink while trying to watch TV
you might have noticed that liquids take up space because once the space
inside your glasses full yeah right
on the carpet sorry mom you also know that water has weight
if you carry a water bottle as you drink from it it gets later
because you're removing water from its all it's a matter to have course
probably the most obvious cut
rocks are solid and so is light switches just solid water
soccer balls are solid iPad your pet fluffy
and every single guy in one direction and just like rocks
all those things have wat and take up space now you know what's weird is
sometimes matter can't be seen
or felt but it's there like the air we breathe air is an example of gas the
third mainstay to matter
and I probably know what you're thinking how do we know
air or any gas really is there if we can't see it
well we can prove it by doing an experiment site
let's start by asking the question is air matter
because if it is it should take up space and have wat
right to see if they're takes up space look at I can easily drop in Mt balloon
into this little box
but a full one won't fit that's because the air that fills the space
inside the balloon is bigger than the space inside the box now
does air have wat let's try something else take to empty balloons and take
them to the end a meter stick
then we'll hang the meter stick on a string so that it's perfectly balanced
now let's see what happens if we blow up just wanted the balloons and put it back
on a meter stick check it out the end with the ball ballooned sinks
it weighs more than the empty balloon because the air give that
extra weight the balloon Fulham air will
always a way more than the empty one because areas matter in matter has
and takes up space whether it's a liquid a solid
or a gas so listen the next time someone tells you that something doesn't matter
you can tell them to leave their face that technically
everything is matter and tell 'em sobrina said cell