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Chapter 13/14
Test Description: Review
Instructions: Answer all questions to get your test result.
1) 1. Which kind of elements touch the zigzag line on the periodic table?
A
gasses
B
liquids
C
Metals
D
metalloids
2) 2. If you fold a piece of paper to make a card, will this affect the mass of the piece of paper?
A
the mass will be less if you fold the paper
B
the mass will double if you fold the paper
C
no the mass will not change even if the shape of the paper changes
D
the mass will be greater if you fold the paper
3) 3. The density of water is 1g/cm3. The density of a solid piece of foam is 0.45 g/cm3. Will the foam sink or float if placed in the water?
A
the foam will stay in the middle of the container because the density is equal to the water
B
the foam will float because it is less dense than the water
C
the foam will sink because it is more dense than the water
D
the foam will go up and down because the density is equal to the water
4) If you have a mixture of sand and metal fillings, how could you separate the sand from the metal?
A
you could use a magnet to attract the metal and separate it from the sand
B
you could add water to the mixture then boil it to separate the sand from the metal
C
you could put the mixture in water then drain the mixture to separate the sand from metal
D
you could pick each piece of sand out until it is seperated
5) The chemical formula for carbon is CO2, this tells you that carbon is a__________.
A
compound
B
liquid
C
solution
D
mixture
6) You have an element that is brittle, a poor conductor of heat, and cannot be hammered into sheets. What type of element do you have?
A
metalloid
B
nonmetal
C
metal
D
liquid
7) Which side of the periodic table are metals found?
A
right
B
bottom
C
center
D
left
8) If a scientist knows he has a pure substance that has 4 protons in every atom, then the scientists knows he has a specific__________.
A
liquid
B
metal
C
element
D
gas
9) What does an electron cloud have in it?
A
electrons
B
protons
C
nothing
D
electrons and empty space
10) Which particle in an atoms nucleus has no charge?
A
proton
B
neutron
C
electron cloud
D
electron
11) What measurement would change if you traveled from Earth to the Moon?
A
Density
B
Weight
C
Mass
D
Volume
12) How is a chemical change different from a physical change?
A
there is no difference
B
in a chemical change the substance changes shape and in a physical change the substance changes size
C
in a chemical change the substance changes into a new substance, in a physical change the substance is still the same substan
D
In a physical change the substance changes into a new substance, in a chemical change the substance stays the same substance
13) Describe what water vapor is.
A
water droplets on a leaf
B
water condensed into a cloud
C
a gas above boiling water
D
water in a puddle
*select an answer for all questions
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