Newton's 3 Laws and Amusement Park

1 example of Kinetic Friction and 1 example of Static Friction

I went on a water ride(the one where you go down the steep thing twice). It is and example of Newtons 1st law, static friction, and kinetic friction. This is an example of Newtons 1st law because in Newtons 1st law it tells us "An object at rest tends to stay at rest and an object in motion tends to stay in motion unless acted upon an outside force," and when i was going downwards it was going really fast but when it suddenly stop I flew forwards. Which is also known as inertia.
This is an example of static friction because static friction is the friction that prevents a object to set in motion, so you need a greater force to get the object to start moving. When the ride was about to start it started very bumpy and slow and then eventually it moved more smooth, because the friction was preventing the ride to start, but once it was set in motion it started to move more smoothly.
This is also a example of kinetic friction because, kinetic friction is the friction that goes against the motion of a moving object object. So when it was getting to the end of the ride where it was beginning to stop, it didn't stop immediately it stopped very slowly. It was this way because kinetic friction was slowing it down, and eventually brought it to a stop.

SMASH day tooth pick tower blog

Why is a drawing a sketch an important part of the scientific method and why do you always neglect this step!?!?
Drawing a sketch is important because you can have a better idea of how your final thing will be looking like. And if you drew a sketch you won't be taking as much time during the time you are making the project, on what you are going to do. I think we neglect this step because we feel like it takes too much time, and we just want to experiment it our selves.

Submarine SMASH Day Reflection

2/10/09
Today during smash day we were trying to build a periscope. Our mission was to use the periscope we made and see what things was in the box on a table. The only supplies that we are allowed to use was card board, paper, 4 mirrors, and scissors.
I am not sure how many times we had to modify our designs, because we kept changing it. Our group knew we had to change the design because we kept experimenting and when it did not work we knew we had to change it. We didn't exactly know what to do when we modify it we just went through trial and error. We communicated to each other by showing each other what we thought would work.
If someone was doing this for the first time my tip to them is just keep going through trial and error. Because i didn't succeed in this either.

SMASH Day Reflection

I was being a critical thinker and problem solver because I was thinking about how the marble can reach the goal with high score a long with the team. It was actually hard to think about the ways to get a high score and get the marble to reach the goal because sometimes you exert different amount of energies so the results won't always be the same. I showed I was being a community contributor because I was sharing my ideas to the team on what I thought would work, and I was participating in the group discussion.

What science skills did you use during the SMASH Day activity? How do these science skills help us be better scientists?

What science skills did you use during the SMASH Day activity? How do these science skills help us be better scientists?
Well I am not sure whether I actually used my skills. Or maybe its just that i used my skills but i didn't realize it. But now that I thought about, i may have applied the law for density. Like i know to make the bottom stable which is heavier on the bottom. So that it would be more stable. I think that by applying the whole density idea it helped scientists better because this way scientist would know what would go first. Or what should be put on each other and for those things not destroyed or fall over. I also believed u used my skills in hypothesis, i used this when i was predicting whether the thing will fall or whether it will broke up. And this skill made us become better scientist because by using hypothesis we can try to make better judgment of what might happen next without keep trying things over and over.

Liquid Columns

Why did some objects sink while some objects floated? Also, why did some objects float in the middle of the columg? Do you think the "mixed" one will separate by Monday?
The reason some liquids floated because the object is lighter then the liquid it self. And the reason for some of the objects sink because it was heavier then the liquid/more dense. Some objects floated in the middle because the liquid at the bottom was more dense then the object, but the liquid at the top is lighter so the only place for the object to go is at the middle. I don't think the "mixed" one will separate, because when you mix the liquids together then the substances will fuse. Therefore the density will fuse together and then they won't separate.

Is air matter? Does it have mass? Does it have volume? How do you know?

Well i think air is matter, because it is in a state of matter which is gas. It has volume because it takes up space, like when you blow a balloon inside a bottle then it will not expand. But if you poke a hole then it will. I am not sure whether or not air has mas because i do not know how you measure air, bu i think there is mass in air.