What Does Your Appendix Do?

Grace Alison Emily Heaven

The appendix is the structure of the colon. It is attached to the large intestine. The appendix is a little pouch.it is at the place where the small and large intestines meet. You will die if your appendix ruptures. Appendix is only about 3 or 4 inches long. The appendix plays the role in fighting lymphoid cells. It fights in the immune system. The appendix is a finger shaped pouch. If your appendix swells up its called appendicitis. Your appendix produces and protects good germs for the gut.

How Does a Combination Lock Work?

     

By Emma and Mason

Most combination locks use a wheel to know the combination.

All wheel packs are designed around the same principle.

Each wheel has a wheel fly on each side.

 The fence is a small metal bar attached to a lever.

 Each wheel on the spindle has a notch cut into it.

 When you turn the dial, the spindle turns the drive cam

Why Do Onions Make You Cry?

by: Tyson Anastasia and Jorja

When you cut an onion, you break cells releasing their contents.

The gas that is formed reacts with water in your tears to form sulfuric acid.

The sulfuric acid burns making your eyes release more tears to wash the irritant away.

Cutting an onion under water washes away the sulfuric acid allow you to be tear free.

why do planes fly By Braydon, Jenson, Ben and Joshua

A jumbo jet can weigh up to 390 metrical tonnes. A plane can hold up to 400 people on average. Planes can fly over 7000 nautical miles. Jumbo jets require a run up of over 3km.

When a plane takes off the wings cut the airflow in half. Some air travels above the wings and some air travels on the bottom. This keeps the plane up once it is in the air.

Why Do We Need Water To Live?

Mathew H Moody Harper Cody

We need water so that our blood can carry nutrients easier. We need water to stay healthy. Our bodies need 1-7 cups or mL of water. If you don’t drink enough water you will get dehydrated. When you are dehydrated it causes headaches, kidney damage and health problem. After three days without water you will suffer but you can survive 3 weeks. Tap water milk and fruit juice are the healthiest. It is better to drink purified water than lake water. Some brands of bottled water are bad for you. You can’t drink plain lake water because it could be polluted.