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Standard 1 Part 1
Test Description: Chemical and physical properties
Instructions: Answer all questions to get your test result.
1) All elements are made up of very tiny particles called
A
none of the above
B
Atoms
C
Molecules
D
Matter
2) A student finds an interesting substances in a jar in the garage. He uses the internet to see if he can find out what it is, based on his observations of the unknown substance. How is the student using the scientific method?
A
He is classifying a substance based on its properties
B
He is doing an experiment with a controlled variable
C
He is using the internet to look up information
D
He is looking and finding new things
3) Atoms of 2 or more elements can combine to form what?
A
Molecules
B
Elements
C
Atoms
D
Compounds
4) Which of the following is an example of a chemical property of water? It
A
Boils at 100 C
B
Reacts with calcium
C
Is transparent
D
Has no odor
5) Is the following a mixture or a compound? Sand
A
Mixture
B
Compound
6) The scientific discovery of the chemical and physical properties of atoms took place over several centuries. Why was it important for scientists for find out about the properties?
A
So people knew how they could use the substances
B
So our understanding of time and space could be complete
C
So that the books written about them would all have complete information
D
So atoms could be seen and their parts identified
7) A student puts out fire on the stove by dumping baking soda on the flame. How has the student used scientific knowledge in his daily life?
A
He knew a chemical property of baking soda is that it dissolves in water
B
He knew a physical property of baking soda is that it doesn't melt
C
He knew a physical property of baking soda is that it is white in color
D
He knew a chemical property of baking soda is that it doesn't burn
8) Which of the following is an example of a physical property of hydrogen? It
A
Is highly flammable
B
Reacts with oxygen
C
Forms hydrochloric acid
D
Is less dense than air
9) Freezing point and melting point are examples of
A
physical properties
B
chemical properties
C
none of the above
10) Which of the following is true of chemical properties? They
A
Explain how the substance reacts with other substances
B
Predict how much of the substance is found in the universe
C
Describe the phase the substance is in
D
Are measurements of the size or mass of the substance
*select an answer for all questions
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