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Chemical Symbol
Periodic Table
Mixtures
Metals
Scientific Method
100
The Element Name
What does the letter on the chemical symbol represent?
100
Oxygen
Which elements make up the majority of the Lithosphere?
100
Element
What do we call a substance that only contains one kind of atom?
100
Malleability and Ductile
What would best describe the physical characteristic of a metal?
100
Posing a question
What is the first step in the scientific method process?
200
Atomic Number
What does the top number on the chemical symbol represent?
200
8
Although there are 92 natural elements, how many elements are in the Earth's Crust?
200
With a magnet
How would you separate a mixture of iron and sulphur?
200
A metal
A good conductor of heat and electricity is a physical property of?
200
Follow procedure and ask questions
How can you work safely in the lab?
300
Atomic Mass
32.066 would represent what number on the chemical symbol?
300
Oxygen and Silicon
What two elements make up most of the Earth's Crust?
300
Physical change may change form but no new substance and a chemical change, one or more new substances are produced.
What is the difference between a physical change and a chemical change?
300
poor conductors of heat and electricity
Most nonmetals are?
300
An observation is information gathered by our senses. An inference is based on prior knowledge.
What is the difference between an observation and an inference?
400
The Periodic Table
Every known pure substance has been organized into a chart. What is the name of this chart?
400
Element is pure substance and a compound is two or more substances
What is the difference between an element and a compound?
400
The substances that make up soil are not chemically combined.
Why is soil a mixture and not a compound?
400
Metalloids
Semiconductors are said to be which type of element?
400
A variable is one of the factors in an experiment that can change.
What is a variable?
500
Demetri Mendeleev
Who created the first periodic table?
500
Compound
Is water an element, mixture or compound?
500
A change in state alters the form and not appearance of a substance but does not transform it into a new substance
Why is a change in state considered to be a physical change?
500
Mercury
What is only metal that is liquid at room temperature?
500
An experiment in which there is only one manipulated variable.
What is a controlled experiment?