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WorksheetsQ1 SCIENCE 6 Q3 REVIEWER
Total questions: 50
Worksheet time: 25mins
Which is the best description of an element?
A substance that cannot be broken down into simpler substances
A collection of atoms that have different abilities when joined together
A man-made mineral
A mixture of substances
Cannot be broken down into a simpler substance
Elements
Compounds
Both
Represented by an unique chemical symbol
Elements
Compounds
Both
Located on the Periodic Table
Elements
Compounds
Both
The chemical symbol of an element always matches the element's name.
Agree
Disagree
Both elements and compounds are pure substances.
Agree
Disagree
Compounds are different than elements because compounds are ---
combinations of two or more elements.
not able to be broken down into parts.
made from the same type of atoms.
a pure substance; elements are not.
Properties
A pure substance that cannot be broken down into a simpler different substance
Physical and chemical characteristics of matter used to describe or identify a substance
Compound
Evidence of a new substance formed from a chemical change, resulting in solid particles that form or separate out of a liquid
Pure substances made of two or more kinds of atoms bound together
Baking a cake is a chemical change because it
creates a new substance
creates energy
changes the volume
changes the state of matter
City Girls Love Their Orange _______________(Be sure to know what this stands for!)
Phosphorus
Phones
Pineapples
Peace signs
Wood burning in a camp fire
chemical change
physical change
When sugar is dissolves in a glass of water
chemical change
physical change
When sugar is heated over a flame and turns black
chemical change
physical change
An example of a chemical property
melting when heated
conducting electricity
mallebility
rusting
A Chemical property or characteristic of a substance that is observed during a reaction in which the chemical composition or identity of the substance is changed.
True
False
NaCl is considered a compound because it is made of two or more
molecules
elements
gases
solids
Si and O represent _______________________ in the chemical formula SiO2
molecules
elements
gases
solids
How many different elements are in the (fake)compound HCOBrNaP4K?
6
7
11
12
How many different atoms are in CaCO3
3
4
5
6
How many different elements are in CaCO3
3
4
5
6
Molecules are made of 2 or more
atoms
elements
Compounds are made of 2 or more
atoms
elements
What is smallest part of a silver ring that is still silver?
an atom
a molecule
an electron
a compound
What substance is chemically formed when 1 oxygen and 2 hydrogen atoms combine
hydroxygen
water
hydrogen dioxide
a mixture of hydrogen and oxygen
Which element is found in large amounts in both the Earth's Atomosphere and Oceans and is essential for human life?
helium
oxygen
silicon
calcium
The smallest part of an Element that is not chemically combined
compounds
atoms
molecules
solutions
Which microscopic view of the particles in the picture is best to use for a model to represent Argon gas?
Solid
Liquid
Gas
Most living things contain which four elements
chlorine, sodium, hydrogen, nitrogen
sulfur, phosphorous, calcium, nitrogen
silicon, calcium, oxygen, aluminum
oxygen,carbon, hydrogen, nitrogen
Which element is most common in the atmosphere? (The air we breathe)
calcium
nitrogen
helium
hydrogen
Which 2 elements make up 75% of Earth's Crust
Oxygen and Silicon
Oxygen and Magnesium
Silicon and Sodium
Potassium and Calcium
Different elements are made up of
identical types of atoms
different types of atoms
1 element is made of
identical types of atoms
different types of atoms
A sample of matter that is made of many identical particles can best described as
an element
a mixture
a compound
an atom
The smallest quantity of an Element that would still have the properties of that Element?
Compound
Mixture
Atom
Period
Which statements are true characteristics about elements:
I. made from a mixture
II. a pure substance
III. represented by a symbol
IV. make up matter on Earth
I, III
II, III, IV
II, IV
I, IV
Which is not an element
Hydrogen
Sodium
Water
Nitrogen
The Symbol for the Element Chlorine
CL
Cl
CH
Ch
The Symbol for the Element Carbon
C
CA
Ca
Cr
The Symbol for the Element Sulfur
Su
SU
F
S
The Symbol for the Element Phosphorus
Ph
P
F
PH
The Symbol for the Element Silicon
Si
S
SI
Cs
The Symbol for the Element Sodium
NA
N
Na
So
The Symbol for the Element Calcium
C
Ca
Co
CA
The Symbol for the Element Nitrogen
Ne
O
N
No
The Symbol for the Element Oxygen
C
O
Os
Cl
The Symbol for the Element Helium
H
He
Hf
Ho
The Symbol for the Element Hydrogen
H
He
Hf
Ho
