Complete the analogy.
C : living matter :: _________ atmosphere
Na H Cl N
What is N?
100
H2O
What is water?
100
How many kinds of atoms can an element have?
What is ONE
100
What is an advantage of using models to study the atoms in elements?
What is the particles are too small to observe?
200
N
What is the chemical symbol for Nitrogen?
200
The element that makes up 4 percent of the Earth's Crust
What is Calcium?
200
CO2
What is carbon dioxide?
200
What are elements represented by on the periodic table?
What is a chemical symbol.
200
What percentage of the Earth's crust do Ca and Sodium make up?
What is 7 percent.
300
Ca
What is the symbol that represents Calcium?
300
The elements that make up most of the mass of the human body-
What are hydrogen and oxygen?
300
NaCl
What is table salt?
300
What do elements make up?
What is matter on Earth
300
Which element is found in the oceans and in the atmosphere?
What is Nitrogen
400
H
What is the chemical symbol for Hydrogen?
400
Which element is found in Oceans, the Atmosphere, and Living Matter?
What is oxygen
400
OOOOOO COCOCOCOCO CaClCaClCaCl NaNaNaNa
Which 2 of these represents a compound?
What is COCOCOCOCO and CaClCaClCaCl
400
What chart do we use to organize and group the elements?
What is the periodic table
400
Which pair of words has the same relationship as
NITROGEN - ATMOSPHERE
1- hydrogen - oceans 2- carbon - oceans
3- sodium - living matter 4- calcium - living matter
What is hydrogen - oceans
500
Na
What is the chemical symbol for Sodium?
500
Earth's crust is 47% Oxygen. Why can't we breathe this oxygen in the crust?
What is the oxygen is bound to other elements in water, rocks, and other compounds.
500
How many kinds of atoms are in a compound?
What is 2 or more?
500
Explain the statement "All matter is make from elements and elements are pure substances."
What is elements are made of only 1 kind of atom, but the make up everything in the universe.
500
What 3 rules do we use for making chemical symbols for elements?
What is 1-based on Latin or Greek
2- the first letter is always capitalized
3- the second letter is always lowercase