Fusion 2nd Edition | Page 15

! GLOSSARY

How do Earthquakes happen?

Magnitude scale

Aerobic Respiration Oxygen Carbon Dioxide Brain Stem Nerve Signals

Scale which measures the intensity of an earthquake. The larger the number, the stronger it is.

Why We Breathe Without Thinking!

The process that produces Energy in our cells
The gas essential for life, which we use for Aerobic respiration
The gas that is expelled by the body through expiration, as a result of aerobic respiration
A structure in your brain that controls vital body functions like breathing and your heart rate
Electrical signals our brain sends to the rest of our body to control movements and functions

Matter Vibrations Density

Mediums

What is sound?

Matter is the scientific word for any physical thing( AKA anything you can touch)
Vibrations are the rapid back and forth movement of an object or thing
Density is the measure of how closely packed matter is- think of it as making a snowball. A loosely made snowball is flakey and has a lot of air in it, but when you squeeze it to make it more solid, what you are doing is pushing the air out so that the snow is more tightly packed together. This second snowball is denser.
A medium is a type of material that something travels through, such as vibrations. This can be anything- the word medium just shows that something is traveling through it.
Can Anything Live Forever?

Biologically immortal

Theory

Organisms that, because of their biology, could live forever if they were in perfect conditions- with enough food, the right temperatures, no predators and no illness, because they stop ageing.
A really good scientific‘ guess’ based on good evidence but not proven to be true.

Pressure Drag

How Do Planes Fly?

A measure of how many particles there are in a place and how fast those particles are moving.
A resistive force which works against motion in air or liquids

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