Category: Science

Endangered Species Project-Portfolio Reflectiion

I learned that animals went endangered due to human’s activities(such as over fishing, pollution, hunting…), and nature causes(global warming, climate change….).

While making the canva website I learned how to research more effectively, using key words, and using AI to help me look for websites that are helpful for the research topic, and also being able to include more important messages and information on the website to make it more attracting to the audience.

I strengthen my skills of writing the description of the graphs and make it very precise and clear to bring out all of the information and make it easy to understand for audiences by not even looking at the graph.

I wrote and met the expectations of the paragraphs of the analysis of graphs because I followed the expectations and the structure of the paragraphs.

Egg Cart Challenge

What did I do

I made an egg cart that should’ve been able to be been dropped from a slope and not break after it hit onto the wall.

What did I learn

I understand the newton’s laws better now after doing the experiment. Newtons first law acted on the egg cart, because the egg cart stayed in motion, when it was about to hit the wall because of inertia. Second Newton’s third law acted on the egg cart, because when the egg cart hit the wall, the wall pushed back which made the egg to crash.

What Worked

The straps of paper that should act like seatbelts worked, because it secured the egg from falling out from the cart and roll on the slope.

What didn’t work

The crumple zone that we made did not work, it was supposed to decrease the force when the egg bump into the wall. But maybe it was because it was too weak it did not decrease the force and made the egg crack.

Personal relevance

Now I know how the cars work and what will happen when it crash into another car. The force pushed toward each other which made the car crash toward each other. Also, what made the force toward each other decrease such as seatbelts and airbags.

Balloon Car

What did I do?

We were making a balloon, using Balloons, Straw, wheels, and cardboard. The purpose of making balloon cars helped us learn and investigate about Newton’s Laws. The Criteria was to make the balloon car to move by it self and also with weights.

What did I learn?

I learned about Newtons 3 laws and how they act. For the first law, it states that an object will only move when another object acts on it. Just like that, a balloon car needs the air in the ballon released to make the car move, because the air have enough force to push the balloon car. The second law states that, the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. As for the balloon car, it means that if the mass is larger it needs more force to push it; when the mass is smaller, it needs less force to push it. For the last Newton’s law, for every action, there is an equal and opposite reaction. When this law acts on the balloon car, it means that the air in the balloon car (opposite force) push the car to move.

What worked?

The laws did act on the balloon car, because the car did need force to push it, also it do have an opposite force that acted on it. Now after the experiment, I understand the Laws of Newton.

What did not work?

At first the balloon car did not work, because we tied the rubber band securing the balloon car too tight. Later we found out about that and loosen the rubber band that made the balloon car able to run faster and more smooth, because more force was released.

Personal Relevance

This unit of balloon cars helped me learn about Newton’s Laws and helped me notice that everything in real life need Newton’s laws to work. Such as a leaf dropping from a tree, both the firs, second, and, third law is all acting on it.

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