WorksheetsCFA #1 Review
Total questions: 40
Worksheet time: 1hrs 11mins
Name
Class
Date
1.
Which of the following best describes the properties of metals?
a)
hard, brittle, and nonconductive
b)
liquid, dark, and conductive
c)
shiny, malleable, and conductive
d)
soft, oily, and very reactive
2.
vertical columns in the periodic table are _________ of elements with similar properties.
a)
groups
b)
periods
3.
_______ are horizontal rows of elements that contain increasing numbers of protons and electrons.
a)
groups
b)
periods
4.
According to its location on the periodic table, sodium (Na) can be described as
a)
an alkaline-earth metal.
b)
a transition metal.
c)
an alkali metal.
d)
a metalloid.
5.
How are the elements in the periodic table arranged?
a)
by their atomic mass
b)
by their chemical symbol
c)
by their chemical name
d)
by their atomic number
6.
What does the number of electrons in the outer level indicate about the element?
a)
how reactive the element is
b)
how malleable the element is
c)
how brittle the element is
d)
how ductile the element is
7.
Which element is not in the Alkali metal family?
a)
Li
b)
H
c)
Fr
d)
Cs
8.
The noble gases have how many valence electrons?
a)
1
b)
2
c)
7
d)
8
9.
What describes a change in appearance, without changing the composition of the material?F
a)
Physical change
b)
Chemical change
c)
Reactiivty
d)
Flammability
10.
___________ is the ability to be hammered into a thin sheet.
a)
Conductivity
b)
Reactivity
c)
Malleability
d)
Viscosity
11.
Burning and baking are examples of __________________ because they are irreversible.
a)
chemical changes
b)
physical changes
c)
melting
d)
freezing
12.
The picture shows an example of a ______________ change.
a)
chemical
b)
physical
c)
irreversible
d)
freezing
13.
Which liquid is the least dense?
a)
oil
b)
water
c)
syrup
d)
plastic bottle
14.
A combination of two or more substances that cannot easily be separated--
a)
mixture
b)
solution
c)
solute
d)
solvent
15.
All of the following make up an atom except ____________.
a)
proton
b)
plasma
c)
neutrons
d)
electrons
16.
Plants and animals that live on the ocean floor are...
a)
benthos
b)
nekton
c)
plankton
d)
diatoms
17.
Organisms in the deep ocean that produce their own light are called
a)
bioluminescent.
b)
neritic
c)
benthic
d)
hydrothermal
18.
This is the study of the physical properties of ocean
a)
Natural Resources
b)
Oceanography
c)
Bioluminescence
d)
Chemosynthesis
19.
This is the zone between high-tide and low-tide (literally means between tides)
a)
Twilight Zone
b)
Neretic Zone
c)
Open-ocean Zone
d)
Intertidal Zone
20.
Which of the following is the best answer based on this statement: This zone is the largest zone in the ocean.
a)
Neritic
b)
Intertidal
c)
Oceanic
d)
Sunlight
21.
What are the two zones that distinguish between photosynthesis and chemo-synthesis?
a)
aphotic and photic
b)
neritic and oceanic
c)
abyssal and midnight
d)
sunlight and twilight
22.
This is the zone between the tides and the deepest part of the ocean. Where the continental shelf begins.
a)
Neritic
b)
Oceanic
c)
Sunlight
d)
Intertidal
23.
Water is a universal solvent
a)
True
b)
False
24.
The ability of water to move through and around substances is called? (Examples: Water moving through a paper towel; water being transported from the roots to the top leaves of a tree.)
a)
Capillary action
b)
Cohesion action
c)
Concave action
d)
None of the above
25.
Why does Ice float?
a)
Ice is less dense than in water in liquid form.
b)
Ice is more dense than in water in liquid form.
c)
Ice has more surface tension
d)
None of the above
26.
What word describes when water is attracted to other substances?
a)
cohesion
b)
adhesion
c)
capillary action
d)
surface tension
27.
The attraction that causes water and other liquids to form drops on thin films (like wax paper) is called ________________. This is also water’s ability to be attracted to other water molecules.
a)
adhesion
b)
capillary action
c)
cohesion
d)
surface tension
28.
Which is NOT a unique property of water?
a)
Frozen water floats on liquid water.
b)
Water covers most of the Earth’s surface and retains a large amount of heat.
c)
Water molecules stick to each other through hydrogen bonds.
d)
Water cools very rapidly.
29.
An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, the independent variable is ...
a)
The type of plant
b)
The amount of sunlight
c)
The type of music
d)
The type of liquid
30.
An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, what is the dependent variable?
a)
Type of plant
b)
Water, apple juice, milk
c)
Plant growth
31.
An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, what are the constants?
a)
Type of plant, music, and sunlight
b)
Water, apple juice, milk
c)
Plant growth
32.
measure of that saltiness and is expressed in parts impurity per thousand parts water
a)
Conductivity
b)
pH
c)
Salinity
d)
Turbidity
33.
pollution from a definable source
a)
Pollutant
b)
Pollution
c)
Non-point Source Pollution
d)
Point Source Pollution
34.
Water with high turbidity
a)
is cloudy and hard to see through
b)
is clear
35.
an area of land that is drained by a specified river or other body of water
a)
Marsh
b)
Estuary
c)
Watershed
d)
Tidal Pool
36.
Temperature, turbidity, and suspended sediment are all
a)
chemical indicators of water quality
b)
physical indicators of water quality
c)
biological indicators of water quality
d)
not indicators of water quality
37.
Which of the following is NOT a desired effect in streams?
a)
a pH of about neutral
b)
low salinity
c)
high temperature
d)
low nitrates
38.
Having a pH of 4 means that the liquid is more ____________
a)
acidic
b)
basic
39.
Water that is warmer has less oxygen
a)
True
b)
False
40.
Which word means "safe to drink?"
a)
Hardness
b)
Potable
c)
Clear
d)
Turbidity
100 %
