Category: Science

Egg car challenge

What did I do?

Me and my class did the egg car challenge, what we had to do was keep the egg in the car safe and not cracked after a ramp, we had the materials: tape, wheels, straw, and 3 sheet of paper, me and Fiona first we made the base which was a long paper, after we cut the straw to two small pieces and put it to the tires, after we use tape to stick it to the paper, after, we made a cylinder and put the egg in it and lastly, we added crumple zones.

What did I learn?

I learned Newton’s laws, for example when the egg car stops the egg in it doesn’t want to stop so it would fly out, but if we add a crumple zone then it would make the crash smaller, I also learned that if the car is moving then the friction force is smaller and the applied force is more.

What worked?

What worked was that the egg only cracked a little bit, also the speed worked our egg car was very fast which we achieved our goal on speed, also the wheels we removed the rubber thing which helped on the speed but also fixed the problem that the egg car would just stay at the top or stop in the middle and other problems.

What did not work?

What did not work was that our base was to light which is a problem because the washer and the egg would make it collapse, so the egg would crack a little bit, also our crumple zone was not good which didn’t help that much on the stop.

Personal relevance

I now know that we should add crumple zones and a good and strong base but as well as a good wheel because wheel can help on moving, but we also need to add airbags and seatbelts, I like this egg car challenge a lot.

Balloon Cart challenge

What did I do?

I did the balloon cart challenge where we use a balloon, 4 pairs of wheels, 2 straws, tape, and a plate, and we did tournaments of who’s balloon cart was built better and could go the farthest, but me and Jayden got cooked at the second round because the air was not enough and plus the air was coming out of the balloon which stopped at half.

What did I learn?

We learn about Newtons first, second, and third law, the first law was about an object that wants to stay at rest unless acted by something, Newtons second law is the law of acceleration, which is F=MA (Mass), Newtons third law is about a action reaction for example, when a car is moving the applied force is way more than the friction force but the gravitational force and the normal force remains the same.

What worked?

What worked was that after learning Newtons third law and second law me and Jayden changed our balloon cart we changed the small paper straw to a big plastic straw it helped a lot because we could put more air and the air wont come out that much, but after we started to add weights which is starting to short the length but it still go far.

What did not work?

What did not work was that when we started to add weight the length that it used to go shortened like 20 percent so me and Jayden are still trying to let it go farther even with 6 washers.

Personal Refrence

The balloon cart was like a real car in the real world.

I see Newton’s third law when in real life when I see a car moving

It is important to know these Laws because it helps people know what will happen if they see cars or even stuff in life.

Pic of our tornament

Science fun stuff

What did I do

I did Indi cars and gravitrax and I did critical thinking skills

What did I learn?

I leaned how to build gravitrax and I had to use my critical thinking to make a very good gravitrax.

What worked?

What worked was that the gravitax was very fast and good

What did not work?

What didn’t work was that the Indi cars were always in the wrong direction

Personal revelence?

Todays learning will help me know how to play gravitrax and Indi cars