Science
Mixture
Compound
Element
The meaning
The examples
The usage in daily life
The strengths and weaknesses
The meaning
The examples
The usage in daily life
The strengths and weaknesses
The meaning
The examples
The usage in daily life
The strengths and weaknesses
A substance that can't be turn into a simpler substance by chemical means.
oxygen, helium, sodium, hydrogen, gold, carbon, lithium, nitrogen, uranium, copper.
Oxygen are used to make human breathe and have air.
Strength of oxygen: it helps human to breathe and live
Weaknesses of oxygen:Oxygen reacts with nonmetals like nitrogen, carbon and sulphur to form toxic compounds which are harmful when inhaled. https://www.quora.com/What-would-be-oxygens-weakness#:~:text=Oxygen%20reacts%20with%20nonmetals%20like,respiratory%20problems%20and%20even%20death.
A substance that mixed with other substance together
Seawater: A mixture of various salt and water.
a major source of food, minerals, and other raw materials.
Strength of seawater: Replenishing our bodies with minerals and trace elements.
Weaknesses of seawater: You die of dehydration even as you become thirstier. https://oceanservice.noaa.gov/facts/drinksw.html#:~:text=Human%20kidneys%20can%20only%20make,even%20as%20you%20become%20thirstier.
The substance combined with two or more substance.
water H20
For the ocean and human needs.
Strength of water: It helps in human needs for drinks and ocean.
Weaknesses: some cannot withstand high pressure or temperature, and some are weak to chemical.