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2021-22 Sci 8 Unit 1 Test Review- Matter

Total questions: 46

Worksheet time: 43mins

Name
Class
Date
1.

What does the atomic number represent?

a)

how many atoms are in a group.

b)

how much an atom weighs.

c)

the number of protons in the nucleus of the atom.

2.

particles are packed tightest in a

a)

solid

b)

liquid

c)

gas

d)

plasma

3.

particles move fastest in a

a)

solid

b)

liquid

c)

gas

d)

slime

4.

Which particles are contained in the nucleus of an atom?

a)

neutrons and electrons

b)

protons and neutons

c)

protons, neutron, and electrons

5.

which subatomic particles have no charge (they are neutral)?

a)

protons

b)

neutrons

c)

electrons

6.

What is a subatomic particle with a positive charge?

a)

Proton

b)

Neutron

c)

Electron

7.

A small, dense region composed of protons and neutrons at the center of an atom.

a)

Electron

b)

Isotope

c)

Nucleus

d)

Orbital

8.

Which of the following is responsible for the mass of an atom?

a)

Neutrons and electrons

b)

Protons and neutrons

c)

Protons only

d)

Neutrons only

9.

A subatomic particle with a negative charge.

a)

Protons

b)

Neutrons

c)

Electrons

d)

Isotope

10.
a)
Periods
b)
Groups
11.
a)
Periods
b)
Groups
12.
a)
energy levels
b)
valence electrons
c)
protons
d)
neutrons
13.
a)
energy levels
b)
valence electrons
c)
protons
d)
neutrons
14.
a)
Same group
b)
Same period
15.
a)
Group 1
b)
Group 17
c)
Group 2
d)
Group 18
16.
a)
Metals
b)
Nonmetals
c)
Metalloids
17.
a)
Metals
b)
Nonmetals
c)
Metalloids
18.
a)
Metals
b)
Nonmetals
c)
Metalloids
19.
In the modern periodic table elements are arranged by:
a)
atomic mass
b)
atomic number
c)
valence electrons
d)
number of isotopes
20.
The number at the bottom of each square on the periodic table is the ...
a)
atomic number
b)
atomic mass
c)
chemical symbol
d)
element name
21.
Blue Color: Chemical or Physical Property
a)
Chemical Property
b)
Physical Property
22.
Density: Chemical or Physical Property
a)
Chemical Property
b)
Physical Property
23.
Flammability (burns): Chemical or Physical Property
a)
Chemical Property
b)
Physical Property
24.
Solubility (dissolves): Chemical or Physical Property
a)
Chemical Property
b)
Physical Property
25.
Melting Point: Chemical or Physical Property
a)
Chemical Property
b)
Physical Property
26.
Something that takes up space and has mass.
a)
volume
b)
matter
c)
mass
d)
density
27.
The amount of space something takes up
a)
density
b)
volume
c)
mass
d)
matter
28.
Solids have a definite _______________.
a)
smell
b)
shape
c)
picture
d)
sound
29.
Liquid matter takes the shape of _______.
a)
a gas
b)
water
c)
a pet
d)
Its container
30.

Vaporization/ evaporation is the change of physical state from _______ to _______.

a)

gas to liquid

b)

liquid to gas

c)

solid to gas

d)

gas to solid

31.
Substance with a DEFINITE shape and DEFINITE volume...
a)
solid
b)
liquid
c)
gas
32.
The particles in a solid are...
a)
vibrating and closely packed together
b)
vibrating and loosely packed together
c)
not moving at all
33.
Temperature measures...
a)
The amount of matter in an object.
b)
how fast or slowly molecules are moving.
c)
the amount of space an object takes up.
34.
Why do ice cubes float in a  glass of water?
a)
the ice cubes are more dense than the water
b)
the water is more dense than the ice cubes
c)
the water is more dense than the glass
d)
the ice is more dense than the glass
35.
Mercury is a metal that is liquid at room temperature and has a density of 13.5 g/cm3.  Which of these metals would sink below the mercury if dropped into a container of mercury?
a)
gold (density=19.3 g/cm3)
b)
lead (density=11.4 g/cm3)
c)
iron (density=7.9g/cm3)
d)
aluminum (density=2.7g/cm3)
36.
A brick sinks in water while a wooden block of the same size floats.  This is because the brick has a
a)
lower volume than the wooden block
b)
lower density than the wooden block
c)
higher volume than the wooden block
d)
higher density than the wooden block
37.
What is the density of a liquid that has a mass of 27g and a volume of 30ml?
a)
0.9 g/ml
b)
3 g/ml
c)
57 g/ml
d)
810 g/ml
38.
A scientist has four different liquids and pours them all into a bottle.  The silver liquid sinks to the bottom, the red liquid settles on top of the silver one, and the pink liquid stays at the surface. Which liquid has the smallest density?
a)
the pink liquid
b)
the silver liquid
c)
the red liquid
d)
the water
39.
A piece of copper has a mass of 89g and a volume of 10 cm3.  What would be the density of the copper?
a)
0.89 g/cm3
b)
89 g/cm3
c)
8.9 g/cm3
d)
890 g/cm3
40.

What is the name of this metric tool?

a)

Triple Beam Balance

b)

Graduated Cylinder

c)

Massometer

41.

Triple beam balances measure ________________.

a)

Volume

b)

Length

c)

Mass

42.

Find the mass.

a)

550.4 g

b)

559.4 g

c)

550.6 g

43.

Find the mass.

a)

285.3 g

b)

275.5 g

c)

275.3 g

44.

Which list shows the order from the most dense to the least dense?

a)

Screw, grape, sponge, bottle cap

b)

Sponge, bottle cap, grape, screw

c)

Screw, bottle cap, grape, sponge

d)

Screw, grape, bottle cap, sponge

45.

A student put the 4 objects listed in a bucket of water. Which two objects are most likely less dense than water?

a)

Glass Marble and Metal Paper Clip

b)

Wood Block and Plastic Ball

c)

Wood Block and Metal Paper Clip

d)

Glass Marble and Plastic Ball

46.

Which statement is correct?

a)

Corn syrup is denser than water.

b)

Water is denser than corn syrup.

c)

Water is less dense than oil.

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