NATURAL SCIENCE, SEPTEMBER 23RD

 PRE ACTIVITY: Recordamos al maestro José A Morales.

Date: Wednesday, september 23rd, 2020.

Topic: States of matter

 

Matter makes up our planet and the whole universe. On Earth, all matter exists in different states: solid, liquid, gas or plasma.

 

Solid can hold its shape (for example, water in solid form is ice).

Liquid like water forms a pool: it flows or runs but it can't be stretched or squeezed.

Gas can flow, expand and be squeezed; if it is in an unsealed container it escapes (water in gas form is steam).

Plasma which an ionized gaseous substance becomes highly electrically conductive to the point that long-range.

 

Depending on its temperature, matter can change state; heating, cooling, evaporating and condensation are ways in which a material changes state.