Ki-Hoon

=Forces and Motion=

Week 1
- I think this unit is about all the forces in the earth like gravity, weather (wind), natural forces, etc... - It also deals with pulling, pushing, twisting and squeezing and all the action you can think of.

Forces
- In forces I think we are mostly going to learn about these three things. 1. gravity 2. air resistence 3. water resistence

Questions about forces
Can we see gravity? Is gravity hot or cold? Why can we feel water but not air?

Motion
- I think motion is action and I think we will be learning about these four actions. 1. push 2. pull 3. twist 4. squeeze

Question about motion
If there is no force, would there still be motion? If there was no motion, can we survive?

Week 3
I have learned that:

1. You need enough force to overcome friction. 2. Air and water resistance are kind of similar to friction because sometime it stops things.

Week 4
What I am sure about:

Now I am 100% sure that gravity is in every planet because we did a homework about how much you weight in different planet and if you still don't get it. Well, gravity is what causes the weight; so if there was no gravity there would be no weight.

What I learned:

1. Everything that has matter has weight (even the small one, it just that it's too small to measure). 2. I learned that only stuff that has matter has friction.

1. Why is some force powerful than others?
2. Does every planet have a force in it?

My findings
1. I found out that the neuclear force is the most powerful force and the human call it the strength 1. 2. At first, I thought the gravity is a strong force but it is completely weak compared to neuclear foce.

My difficulties and problems
My difficuties about finding information are that I don't think it is best to find information in the internet because the information in the internet is not always correct and hard to get the information you want because there are so many things in the internet.

My ideas for experiments
First, I will need a box and then I am going make a fake butterfly and attach a paper clip on a string. On the other side of the string, I am going to put a tape and stick it inside the box. On the top of the box, I am going to a put a magnet and I will see if the butterfly go down or up.