Science Center

Last week we went on a trip to Kamloops.  We were able to visit the science center.  It's called The
Big Little Science Centre.  A really interesting activity I did was a create a face website.  You can create any face in the universe.  Police use it to find criminals.  The witness describes the person and the police rebuilds the person.

There was also a pet lizard that I got to pet.  The skin felt scaly especially since the lizard was shedding.

Newtons Laws of Science

1. Law of Inertia

Inertia is why things that are not moving prefer not to move unless you add a big amount of force. Inertia is also when something is moving but prefers to stay moving. Another form of inertia is when something is going really fast you can't turn. One thing is for sure without inertia we could not turn, stop, or go properly. 

The experiment we did demonstrated the law of inertia.  First we stacked up five pennies and then we took a separate penny and flicked it at the stack. The penny we flicked at the stack knocked the bottom penny out of the stack and sent it flying.

2.  Newton's Second Law

Newton's second law states that force is what causes an object to change speed or direction.  Objects with greater mass require more force to move it than objects with less mass.  There is a formula for this law.  The formula is F=m x a.  That means that force is equal to the mass times acceleration.  An example of this law is the experiment we did.  We balanced an egg on a paper towel roll and put that on a circular pan.  We put the circular pan on a cup filled with water and we took our hand to bang the circular pan.  The egg fell into the glass of water while the paper towel roll and circular pan went flying.

3. Newton's Third Law

Newton's first law states that for each reaction there is an opposite action.  An example is a rocket flying into space.  The only reason the rocket can go up is because the gas is pushing against the launch pad.  The opposite action is that the rocket shoots into space.  Another example is when you bump into the wall and get pushed backwards.  That is because the wall is pushing against you in the same way that you pushed against it.  An experiment that we did that illustrates this law is when we pushed a skateboard against the wall, the skateboard flew away from the wall.