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WorksheetsStars, Density, Solutions Colloids and Suspensions
Total questions: 33
Worksheet time: 36mins
Name
Class
Date
1.
Sugar water is a
a)
solution
b)
suspension
c)
colloid
2.
Milk is a
a)
solution
b)
suspension
c)
colloid
3.
What type of mixture separates upon standing?
a)
Solution
b)
Alloy
c)
Colloid
d)
Suspension
4.
type of mixture that doesn't separate on its own but still contains undissolved particles
a)
solution
b)
colloid
c)
suspension
5.
Which substance is MOST soluble at 0 ºC?
a)
KCI
b)
NaNO3
c)
NaCl
d)
Ce2(SO4)3
6.
A type of mixture where the particles are larger than those in a solution but not heavy enough to settle out.
a)
Homogeneous mixture
b)
Colloid
c)
Suspension
d)
Compound
7.
The Tyndall Effect is not visible in which of the following?
a)
Solution
b)
Suspension
c)
Colloid
d)
Heterogeneous Mixture
8.
The beaker on the left would be a (both have been recently stirred)
a)
Solution
b)
Suspension
c)
Colloid
d)
Impossible to tell
9.
Put the liquids in order from most dense to least dense?
a)
4, 3, 2, 1
b)
1, 2, 3, 4
c)
3, 4, 2, 1,
d)
4, 3, 1, 2
10.
What is the formula for density?
a)
density = mass x volume
b)
density = mass / volume
c)
density = mass + volume
d)
density = mass - volume
11.
Frank has an eraser. It has a mass of 4g, and a volume of 2cm3. What is its density?
a)
8 g/cm3
b)
2 g/cm3
c)
1/2 g/cm3
d)
24 g/cm3
12.
Jack has a rock. The rock has a mass of 14g and a volume of 2cm3. What is the density of the rock?
a)
7 mL
b)
7 g/cm3
c)
28 g/cm3
d)
1/7 g/cm3
13.
What is the volume of Object X?
a)
10.0 cm3
b)
15.0 cm3
c)
20.0 cm3
d)
25.0 cm3
14.
Why do some substances float on water?
a)
they are warmer than water
b)
they are cooler than water
c)
they are more dense than water
d)
they are less dense than water
15.
Helium balloons rise on earth because
a)
helium is less dense than air
b)
helium is more dense than air
c)
helium is cooler than air
d)
helium is warmer than air
16.
What is the measuring unit for mass?
a)
centimeter
b)
millimeter
c)
grams
d)
pounds
17.
Which units of measurement are used for volume?
a)
grams
b)
centimeters
c)
grams/milliliter
d)
milliliter
18.
A crayon has a mass of 10g and volume of 5 mL. What is the density?
a)
30 g/mL
b)
15 g/mL
c)
1 g/mL
d)
2 g/mL
19.
What is the formula for Mass?
a)
Mass/Volume
b)
Density x Volume
c)
Mass/Density
20.
What is the formula for Volume?
a)
Mass/Volume
b)
Density x Volume
c)
Mass/Density
21.
Which of the following star remnants is the least massive?
a)
White Dwarf
b)
Neuton Star
c)
Black Hole
22.
What is the best title for this picture?
a)
Birth of a Star
b)
Birth of a Universe
c)
Life Cycle of a Low Mass Star
d)
Life Cycle of a High Mass Star
23.
What is the process that occurs in the core of a star, like the sun, that produces energy?
a)
fission
b)
fusion
c)
decay
d)
convection
24.
Nebulae are considered "Stellar Nurseries" because...
a)
Planets are created from the gases
b)
Stars form from them
c)
Asteroids are formed from them
25.
A Super Giant star will eventually turn into...
a)
a neutron star or a black hole.
b)
a red giant.
c)
a main sequence star.
d)
a white dwarf or a black dwarf.
26.
Which comes first in the following sequence of stars?
a)
Main Sequence Star
b)
Red Giant
c)
White Dwarf
d)
Black Dwarf
27.
Process in which lighter elements (hydrogen) combine to form heavier elements (helium).
a)
Luminosity
b)
Nuclear Fusion
c)
Supernova
d)
Star
28.
Galaxies that are redshifted are:
a)
actually blue.
b)
really far away.
c)
invisible.
d)
moving away from us.
29.
The universe is expanding! This means that:
a)
all of the galaxies are spreading out.
b)
the universe must have started from a single point.
c)
the universe is cooling down.
d)
all of the above.
30.
The Cosmic microwave background (CMB) is:
a)
the remaining energy from the big bang.
b)
incredibly hot.
c)
visible to the human eye.
d)
only located in certain places in the universe.
31.
The most abundant element in the universe today is:
a)
water
b)
hydrogen
c)
oxygen
d)
carbon
32.
The universe is expanding. This means that:
a)
Galaxies are getting bigger.
b)
Atoms are getting bigger.
c)
The universe is creating more matter.
d)
The amount of space between galaxies is increasing.
33.
At the center of most, if not all, galaxies is a _________.
a)
Giant Sun
b)
Black Hole
c)
Big Bang
d)
White Dwarf
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