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WorksheetsInt.2-Science Midterm Review
Total questions: 54
Worksheet time: 27mins
Name
Class
Date
1.
When diluting hydrochloric acid, always pour...
a)
the base into water
b)
the acid into the water
c)
water into the base
d)
water into the acid
2.
To test the odor of fumes
a)
heat it before smelling it toward your nose
b)
inhale the fumes from the container
c)
gently wave the fumes
d)
take a deep breath & inhale
3.
When enough experimental data support a hypothesis, the hypothesis becomes a(an)?
a)
fact
b)
inference
c)
theory
d)
conclusion
4.
Thinking that someone is at the door when you hear the doorbell ring is an example of a(an)
a)
fact
b)
inference
c)
theory
d)
conclusion
5.
When enough experimental data support a hypothesis, the hypothesis becomes a(an)?
a)
immediately after the problem has been stated
b)
after obtaining the results of the experiment agree
c)
after several qualified scientists agree
d)
after several qualified scientists agree
6.
A group of cells that together perform a similar function is called a(an)
a)
Organ
b)
Organ System
c)
Tissue
d)
Division of labor
7.
All living things get energy either directly or indirectly from
a)
animals
b)
plants
c)
water
d)
the sun
8.
The process by which living things take in oxygen and use it to help produce energy is called
a)
respiration
b)
excretion
c)
adaptation
d)
response
9.
The person responsible for the theory that states chemicals in Earth’s early atmosphere formed the molecules for life was
a)
Francesco Redi
b)
Stanley Miller
c)
G.W.Bush
d)
J. Weitzman
10.
Tested, logical explanations for events that happen in nature are called
a)
scientific method
b)
answer
c)
theory
d)
reason
11.
Organic compounds that are basic to life are
a)
fats
b)
compounds
c)
protein
d)
all of the above
12.
ATP is the high-energy molecule that provides energy to animal cells is.
a)
True
b)
False
13.
Solutions containing OH- ions are considered to be
a)
a base
b)
an acid
c)
a variable
d)
all of the above
14.
Which of the following organic compounds is the main fuel supply for cellular work?
a)
Sugar
b)
Fat
c)
Lipids
d)
carbs
15.
When Blue Litmus paper turns red when testing a liquid, the solution is said to be an Acid.
a)
True
b)
False
16.
What is the maximum number of electrons that can fill the first electron shell?
a)
1
b)
2
c)
3
d)
4
17.
Which of the following terms describes a substance {like sugar}formed by the chemical combination of two or more elements?
a)
Compound
b)
Isotope
c)
Nucleus
d)
Enzyme
18.
The most common elements in most living things are
a)
oxygen, carbon, hydrogen, and calcium.
b)
oxygen, carbon, hydrogen, and nitrogen.
c)
oxygen, carbon dioxide, hydrogen, and nitrogen.
d)
oxygen, carbon, sodium, and nitrogen.
19.
The two compounds needed to conduct photosynthesis are?
a)
CO2 & H2O
b)
O2 & H2O
c)
Glucose & O2
d)
all of the above
20.
How many bonds can carbon form with other atoms?
a)
2
b)
4
c)
6
d)
8
21.
The first forms of life were
a)
unicellular
b)
bacteria
c)
prokaryotic
d)
all of the above
22.
Each distinct form of life or type of organism is called
a)
cell
b)
domain
c)
species
d)
population
23.
The function or job an organism has in its habitat.
a)
Niche
b)
Habitat
c)
Egosystem
d)
Biotic Potential
24.
An organism that feeds on the bodies of dead animals
a)
herbivore
b)
carnivore
c)
scavenger
d)
omnivore
25.
Animals that only feed on plants.
a)
herbivore
b)
carnivore
c)
scavenger
d)
omnivore
26.
Which is not a greenhouse gas?
a)
Ozone
b)
Methane
c)
Nitrogen
d)
Co2
27.
Approximately ¾ of our atmosphere is made of
a)
Co2
b)
Oxygen
c)
Ozone
d)
Nitrogen
28.
Why is the area near the equator warmer than the rest of the earth?
a)
It is closer to the sun
b)
It receives direct sunlight
c)
It is warmed by the greenhouse effect
d)
it is warmed by the Gulf Stream
29.
Acid rain is really NOT an acid
a)
True
b)
False
30.
Noise pollution cannot be harmful to humans
a)
True
b)
False
31.
The animals most affected by acid rain exposure are
a)
Mammals
b)
Birds
c)
Amphibians
d)
Reptiles
32.
How can melting polar ice change climate?
a)
Excessive amounts of water goes into the water cycle
b)
Takes water away for streams & rivers
c)
Ocean currents can change
d)
Glaciers retreat and scar the land
33.
Which animal is in the most danger of losing its habitat?
a)
Arctic Hare
b)
Polar Bear
c)
Arctic Fox
d)
Penguins
34.
Global Warming is accelerated by;
a)
reduction of snow & ice cover
b)
cutting down trees
c)
increase carbon dioxide
d)
all of the above
35.
Which is a more efficient and less polluting way of providing energy?
a)
wind
b)
solar
c)
nuclear
d)
fossil fuels
36.
Which of the following contain a nucleus?
a)
bacteria
b)
prokaryotes
c)
eukaryotes
d)
organelles
37.
The plasma membrane (cell membrane) is “selectively permeable”, which means
a)
it only allows water soluble molecules in
b)
it only allows water insoluble molecules in
c)
}it allows some molecules in but not other molecules
d)
it dissolves in the presence of some proteins
38.
Which of the following is a function of the cell nucleus?
a)
contains the information needed to make proteins
b)
stores DNA
c)
directs the activities of the cell
d)
all of the above
39.
Prokaryotic cells lack a nucleus
a)
True
b)
False
40.
Diffusion is the net movement of molecules from
a)
an area of low concentration to an area of high concentration
b)
}an area of high concentration to an area low concentration
c)
an area of equilibrium to an area of low concentration
d)
all of the above
41.
The passive transport of water across a selectively permeable membrane is called
a)
osmotic pressure
b)
osmosis
c)
facilitated diffusion
d)
active transport
42.
Which type of transport requires an input of energy by the cell?
a)
diffusion
b)
passive transport
c)
active transport
d)
osmosis
43.
A teaspoon of sugar in a cup of coffee is considered the “solute” within the solution
a)
True
b)
False
44.
A pine cone is a reproductive structure of a gymnosperm
a)
True
b)
False
45.
A waste product of cellular respiration is.
a)
water
b)
carbon dioxide
c)
oxygen
d)
glucose
46.
The process of fermentation
}a. Uses oxygen c. Uses air }b. Does not use oxygen d. None of the above
}a. Uses oxygen c. Uses air }b. Does not use oxygen d. None of the above
a)
uses oxygen
b)
uses air
c)
does not use oxygen
d)
none
47.
Cellular respiration is called an aerobic process because it requires?
a)
oxygen
b)
Co2
c)
Lactic Acid
d)
Water
48.
Heterotrophs are also known as?
a)
producers
b)
consumers
c)
autotrophs
d)
both a & b
49.
Angiosperms are known as?
a)
Flowering plants
b)
Non-flowering plants
c)
Seedless plants
d)
Cone-bearing plants
50.
A compound needed for photosynthesis to occur is?
a)
water
b)
ozone
c)
oxygen
d)
glucose
51.
The waste product in photosynthesis is
a)
Carbon Dioxide
b)
Glucose
c)
Oxygen
d)
Water
52.
Which organelle in an animal does cell respiration take place?
a)
Nucleus
b)
Cell membrane
c)
Mitochondria
d)
Ribosome
53.
What molecule is made from the process of cell respiration?
}a. ATP }b. Glucose }c. ADP }d. Oxygen
}a. ATP }b. Glucose }c. ADP }d. Oxygen
a)
ATP
b)
Glucose
c)
ADP
d)
Oxygen
54.
Animals do not have cell walls
a)
True
b)
False
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