Thursday, July 8, 2021

P.E essay

                 P.E is a waste of students’ learning time.

Disagree

P.E should be compulsory for all students. Many students think that P.E is a waste of time, but hopefully, your opinions are going to change after reading this essay.


Firstly, P.E introduces us to a healthy lifestyle. Physical education may help your immune system and also improve the health of your organs. It reduces the risk of heart disease, lung cancer, diabetes, stroke, etc. 


In addition, P.E helps us with our academic skills as well as our areas of wellbeing. P.E promotes active lifestyles, develops leadership skills, teamwork, decision making, goal setting and risk management. In other words, P.E is not just about being improving physically but mentally too.


Did you know that athletes from the NBA have an average salary of 7.5 million USD? Or that Lionel Messi, one of the highest-paid athletes, has a 70 million USD salary? These people reached this far because of their dedication to P.E and sports. Staying physically and mentally fit may help you with future careers such as construction workers, firefighters, lifeguards, etc.


People may think of P.E as a waste of time, but it plays a big part in a student’s literature. “Intelligence and skill can only function at the peak of its capacity when the body is healthy and strong.” John F. Kennedy.


Essay burger plan

 In hurumanu 1, we have been planning our essays with a burger plan. We included an introduction, three paragraphs, and a conclusion.


Thursday, July 1, 2021

Effects of Heat

Contraction

Firstly, we heated some water in a can using a bunsen burner. When the steam came out, we turned the burner off. We turned the can upside down on the cold water we prepared. The tin imploded as the heat left the can. This happens because the heated particles leave the can to try and find heat.

Expansion

Firstly, we tested to see if the metal ball would fit through the metal hoop. Next, we heated the ball, and when we tried to put it back through the hoop, it didn't fit. This happens because heat makes the solid less dense. Therefore, expanding the ball.

Conduction

As the heat of the bunsen burner conducted along the metal rod, the petroleum jelly holding the pins melted and the pins dropped on the table. The heat travelled along the rod slowly, therefore giving the pins different times to drop. Here are our times:

The first pin dropped in 4.41 seconds.

The second one dropped on 14.28 seconds.

The third one dropped at 27.43 seconds.

The fourth one dropped at 53.88 seconds.

The last pin dropped at 1 minute 46 seconds.

Convection in liquid

Firstly, we heated water in a beaker using a bunsen burner. We then put a straw and put some permanganate crystals through it. The crystal particles went up and down through the hot water. This happens because heat makes things less dense and lighter. As soon as the crystal particles cooled down, they went down to the surface.

Convection in gas

 Firstly, we cut off the top bit of the teabag, made it into a cylinder and made it stand on the table. We then lit it on fire, starting from the top. The teabag flew in the air as it disintegrated. This happens because the heat made it lighter, lifting it into the air.