3.5-3.7 (G7)

in the context of objects, the tip of a sharp object

in the context of pressure between solids, this is the area of contact between the two solids.

a type of height measurement, usually measured vertically upwards from sea level

particles hit into each other or hit another object

an object that holds something else, for example, a balloon is a container for gas

the international standard unit of pressure; meaning the number of newtons of force on every square metre of area written as N/m2

distance from the top to the bottom of something, or distance from the surface down to a particular position in a liquid or gas

the result of a force exerted on an area; the pushing effect of a force

pointed end with small area at end of the points; having the ability to cut or push into something else.

a position defined as having zero altitude; the position of the ocean surface measured mid-way between high tide and low tide

a measure of how many particles are in a particular space or volume; more particles in a space is a higher concentration than fewer particles in the same space

the force exerted by the atmosphere on an area of 1 meter squared, it is approximately 100 000 N/m squared at sea level

when particles hit into each other or hit into another object

a measure of how many particles are in a particular space or volume; more particles means higher concentration

distance from the top to the bottom of something, or distance from the surface down to a particular position in a liquid or gas

type of height requirement usually measured vertically upwards from sea level

position defined as having zero altitude; the position of the ocean surface measured mid-way between high tide and low tide

object that holds something else.

force exerted by atmosphere on an area of 1meter squared; approximately 100 000N/meter squared at sea level