Hunting the Elements

Think Past: A few things I knew about The Periodic Table are that the atomic number is the amount of protons and the amount of electrons. I knew that there are different "sections/groups" on the table. I knew that Mendeleev created the Periodic Table too. Another thing is that I knew there were 118 elements on the table.

Think Present: I learned some things from Hunting the Elements, like that gold doesn't ever rust. Also coppers melting point is 1983ºF. People keep trying to create new elements but sometimes they don't last for more than 10 seconds. I also learned that Uranium is used for nuclear properties.

Think Future: Things I want to know are how did they know how many protons and electrons make up an element? What would happen if you put every element together? What caused Mendeleev to make this discovery? Can we ever run out of all the elements on the table?

Newtons First Law of Motion

Newtons First Law of Motion is "an object in motion will stay in motion unless acted on by an outside force". This is sometimes referred to the "the law of inertia". An example of it is if a car is driving and the car veers off and hits a wall. The car was stopped by the wall so it is no longer moving. This law also deals with kinetic and potential energy. The kinetic energy is when the object is moving. The potential energy is the stationary object. You can predict the behavior of moving objects and stationary objects. These objects wont stop unless they are hit by a force like; gravity, a wall, another car, etc. There will be different reactions each time. For example, if a car hits a bush then the push will probably fly apart and get destroyed but if a car hits a wall then the wall will maybe have a dent and a scratch depending on what the wall is made out of. 

http://www.physicsclassroom.com/class/newtlaws/Lesson-1/Newton-s-First-Law