Planet Earth
The most abundant gas in our atmosphere.
Nitrogen
The process of removing salt in the water to be drinkable
Desalination
A state of matter wherein molecules are closely packed to each other
Solid
Proton is ______ charge
Electron is _______ charge
Neutron is _______ charge
Positive
Negative
Neutral
Give the three main classification of elements in the periodic table
Metals
Non-metals
Metalloids
What does it mean by "global warming"?
An increase temperature in the environment due to toxic pollution by air or land.
Which substance we add in the water to kill bacteria or germs?
Chlorine
A states of matter wherein molecules can freely move and without a regular shape
Gas
Who introduce the Periodic Table of Elements?
The most stable group of elements in the periodic table
Noble gases or group 8
Give the purpose of ozone layer or atmosphere to our earth.
It serves as protection from the direct heat coming from the sun
It is the most expensive water treatment which uses a lot of energy.
Distillation
A states of matter wherein it copies the shape of the container and the molecules move past/slide from each other
Liquid
We get the atomic mass by adding protons and _____
Neutrons
The toxic or poisonous group in the periodic table
Halogens or group 7
Give the 4 layers of the earth
Crust, mantle, outer core and inner core
How do people filter or clean water during earlier times?
A process wherein a solid substance turns into a gas without undergoing liquidation
Sublimation
What do you call the process of writing dots around the element?
Lewis Dot Structure
Elements in the periodic table is arrange according to its _____________
Atomic Number
How oxygen production increase in the environment during geologic time?
Presence of photosynthesizing life forms
How do we collect water using the distillation process?
By collecting the steam or water vapor
A change in physical state wherein liquid turns into gas
Boiling point
How can we know the number of dot/s must be present in an element?
By knowing in which group it belongs
How many electrons must be present in an element to become stable?
8