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Published byKerrie Garrett Modified over 8 years ago
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If matter can be separated, it is a mixture. From there, if the composition is uniform, it is a homogeneous mixture (solution) If the composition is not uniform, it is a heterogeneous mixture.
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Back to the beginning, if your matter cannot be physically separated, it is a pure substance. From there, if it can be chemically decomposed, it is a compound. If not, it is an element.
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Matter is everything made up of atoms Everything you touch is made of matter Your skin Your wall Your cell phone The cash you get when working scandalously at late hours of the night (just kidding. But it really is made of matter.)
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Atoms are the smallest particle of an element that still has the properties of that element You probably think you know what atoms are, that they’re somehow related to molecules or something (at least that’s what I knew from watching The Magic School Bus) But I didn’t know…
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Atoms ARE related to molecules. But we’re not quite there yet. The center of an atom is its nucleus The nucleus contains protons, which have a positive charge, and neutrons, which have a neutral charge. These are the two heavy subatomic particles in an atom.
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Scientists have found over 100 different types of atoms, or elements, in this context. Atoms are what make matter They are what make things what they are-the reason you can tell paper from metal, so on and so fourth.
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Molecules, like pretty much everything else ever, are made up of atoms Atoms bond together through a fancy process involving ions, and voila. Molecules.
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A molecule is an electrically neutral group of at least two atoms in a definite arrangement held together by very strong covalent bonds (Covalent means chemical in this context)
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Molecules store energy through ions An ionic bond is some of what makes up a molecule. Enzymes are also fun. They are large molecules that help correct chemical reactions that take place
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Magnetic energy is one type of energy As are heat Light Electrical Solar Nuclear Mechanical Chemical Heat And friction
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Energy in friction is how heat is created with friction and how you would get something like a rugburn.
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Energy can be converted and conserved, but never created or destroyed. This is how we have electricity
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Potential energy is exactly what it sounds like- energy that has yet to be put into action, energy that is in store. A roller coaster before it goes down a big hill has a lot of potential energy. The previous picture depicted not potential, but kinetic energy.
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Kinetic energy is active energy, as shown in the pretty picture. energy cannot be created or destroyed. It is either potential or kinetic. It can only be transferred
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When energy needs in a human are high, work may then be done When they are low, the body is usually sleeping or at rest. Like in a coma. But that’s not funny.
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Energy and matter are incorporated into all biological systems You need energy to get energy-understand the circle of life.
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It never hurts to watch The Lion King. Energy and matter are in all plants and organisms Look at photosynthesis-
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Photosynthesis is a process through which plants, some types of bacteria, and algae use light energy from the sun and synthesize bigger molecules, more full of energy. It uses only certain wavelengths of light And involves absorbtion of heat into energy Conversion of light energy into chemical energy And storage of potential energy in carbohydrates.
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Not only are matter and energy part of the circle of life, which makes up the Earth as it is today But they also effect the Earth! Matter piles up.
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See that? Not a pretty picture. That is all of our matter piling up in a landfill, which will take hundreds of years after we are gone to decompose. Some styrofoam may be here as long as the Earth is here.
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Each person produces about 4.3 pounds of garbage in a day This is serious stuff That’s not to mention problems like global warming, which are the effect of…. Matter and energy!! Well and humans.
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Global warming. It is real And it is no fun Warming is destroying ecosystems worldwide that you and other people depend on Global warming has changed precipitation patterns around the world, disrupting traditional agricultural practices that you and the rest of the world depend on to live
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Still not fun. Climate-related deaths will double in 25 years according to a 2005 report from the World Health Organization. There has been a 20 Percent increase of America's carbon dioxide emissions from the burning of fossil fuels since 1990.
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Humans created or misused the matter and the energy that is creating every single world problem today. That’s not the matter’s fault And it’s not the energy’s fault It’s not even the atoms’ fault. It’s ours.
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So don’t get your panties in a knot, but this could be the future if we don’t do something about it. Seriously. I know we’re only human, but that means we have… MATTER!! AND ENERGY!! So make it snappy, kids.
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So we have matter and energy And atoms and molecules And the Earth and its current (but not permanent) inhabitants. Us. Use your matter and your energy and your atoms and molecules and all your little systems Make our spaceship a better place
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