Elements and Symbols
How many oxygen atoms are present in a molecule of carbon dioxide (CO2)?
2 oxygen and 1 Carbon
What is the process of milk turning into yogurt called?
Fermentation
I keep my shape, strong and tight
My particles stay right by my side
I'm not liquid nor gas
Your favorite state, who am I?
Solid
What is the charge of a proton?
Positive
What is the name of the column in the periodic table called?
Group
I am the lightest you will ever find,
In water I am combined
I'm first on the table then comes the rest of my squad!
Hydrogen
Earth's earliest and most efficient way of harnessing solar energy:
Photosynthesis
I am needed to breath, cook and fly
I may be invisible, but I have taken up the whole of space!
I fill up balloons, with no sound
here are your hints, who am I?
Gas
What is the center of an atom called?
Nucleus
Who created the first periodic table?
Dmitri Mendeleev
I help your bones stay strong everyday
In cheese and milk I make my way
I'm found in chalk and seashells
What element am I, heres your clue!
Calcium
When a substance reacts with oxygen and produces heat and light, its called:
Combustion
What is the process called when a gas turns into a liquid?
Condensation
Who is credited with discovering the electron?
J.J Thomson
We don't cause trouble, We stand alone
In neon lights, One of us is shown
With stable shells, We flow
What are we?
Noble Gases
What element is named after the Uranus?
Uranium
I start as liquid clear and bright
Mix me well, I become dark and gloomy
I sink to the bottom, a solid surprise
A chemical reaction has met your eye
What am I?
Precipitate
What is the term for the temperature at which a solid turns into a liquid?
Melting point
How many electrons are in a neutral atom of Carbon?
6
I am as strong as steel
Leave too long I'll rust in air
I'm in your blood giving it color
In tools I am found
What am I?
Iron
How many known elements are there?
118
Foundry where new elements are forged:
Stars
I'm not solid, liquid, or gas,
I shimmer and shine in the sky
You'll find me in stars, lightnings and more
I am the state of matter you adore
Who am I?
Plasma
We share a name almost the same
Our protons match but neutrons differ
Different weights but same name
What are we?
Isotopes
Long ago I came in pipes
In pencils too, but not anymore
Toxic if you come my way!
What am I?
Lead