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Natrual is something not made by man for example a avocado, a avocado is a fruit that's green and has a giant nut in the middle it was not created by a man but farmed by a man. Synthetic is something that is created by man like a television or a sparkly Santa hat but every synthetic thing is made out of natrual materials like that piece of paper it used to be a tree.

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Exothermic means outside heat or it feels HOT a exothermic reaction could be logs burning in a fire theres heat being released from the reaction. Endothermic means inside heat or it feels COLD an example of a endothermic reation is vinegar and baking soda in a bag the reaction creates a endothermic reaction and its colder than normal

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A chemical equation has three parts to it theres the reactant, the yield, and the product the reactant is always on the left and is what will go in the reaction the yield is simply there to show you what the reactant and product is and what the reactant is turning into the product is always on the right and shows you what the reactant turned into for example

C₃H₈ + O₂ ---> CO₂ + H₂O

reactant yield product

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A physical change can happen through motion, pressure, and temperature you can tell it’s a physical change if theres a change in state, change in size, change in shape, or change in color this can be reversed for example a piece of paper being ripped in half its a physical change because its a change in size and shape, while a chemical change cant be revered you know it’s a chemical change if theres gas forming, light/heat being produced, sound is given off, or there is a endothermic or exothermic reaction we'll talk more about that later, for example when you pick up a penny and it’s all rusted that’s a chemical reaction because of the change in color and it cant be reversed.

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There are three "states" of matter solid, liquid, and gas solids are compact and there molecules are very close together a liquid are less compact and there not as close as there solid counter part and a gas is even less compact and there not close at all there are ways to turn one state of matter into another theres melting, freezing, condensation, vaporization, and sublimation. melting is when a solid turns into a liquid due to hot tempature for example a ice cube melting into water. freezing is quite the opposite from melting its when a liquid turns into a solid because of a cold tempature for example when you freeze water into an ice cube. condensation is when a gas turns into a liquid due to cool tempature for example when you breath in a mirror and theres fog on it that's condensation. vaporization is the opposite and its when a liquid turns into a gas for example when  you have a glass of water and after a hour theres water droplets on the outside that's vaporization. and then theres sublimation its when a solid turns into a gas skipping the liquid state its very rare and I can't think of an example so just imagine a ice cube suddenly turn into steam.

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Its relevant today because scientists need to learn more to help teach the world?

I did not really learn anything new because I found all my information in one note but I did help and I got a nice refresher

I think I've grown a lot before 7th grade I learned about a lot of things and got better at the things I already known about. For example I am getting better at creating essays like QBP I really feel like I have improved my skills. Another example is P.E. before the pandemic I was really healthy but the pandemic made me lose the enjoyment of running but with 7th grade I am getting back into it. Another other example is science I did not really get to do science in elementary school so I found it very fun to do it every day and same for STEAM. And the last example is Spanish I never did Spanish in elementary because I was to late to enroll so when I learned I was going to do Spanish for one of my classes I was very excited and I want to learn even more.