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WorksheetsChapter 1 and 2 Review
Total questions: 27
Worksheet time: 9mins
Name
Class
Date
1.
All living things are made of
a)
carbohydates
b)
cells
c)
protein
d)
water
2.
The maintenance of a stable internal environment is called?
a)
thermoregulation
b)
osmosis
c)
homeostasis
d)
diffusion
3.
Organs are a
a)
Collection of molecules.
b)
Bunch of cells working together.
c)
Collection of systems working together.
d)
Collection of tissues working together.
4.
The multicellular kingdoms in Domain Eukarya are
a)
Plantae, Animalia, Protista
b)
Plantae, Animalia,
Fungi
c)
Plantae, Animalia,
Fungi, Protista
d)
Plantae, Animalia
5.
Evolution takes place at the __________ level.
a)
Organ
b)
Species
c)
Community
d)
Population
6.
These types of cells were the first to evolve.
a)
Nerve
b)
Eukaryotic
c)
Prokaryotic
d)
Muscle
7.
The _______take in sunlight and the ____use that chemical energy that was not made by them.
a)
Consumers; producers
b)
Consumers; decomposers
c)
Producers; consumers
d)
Decomposers; producers
8.
The first step of the scientific process is
a)
Develop a theory
b)
Make observations
c)
Collect data.
d)
Develop an hypothesis
9.
The variable that the scientist changes is the
a)
Independent variable
b)
Independence variable
c)
Control variable.
d)
Dependent variable.
10.
In science a theory is
a)
A broad overview of natural phenomena that
has been well tested.
b)
An educated guess
c)
A broad overview of
natural phenomena that has not been tested
d)
Like a strong hypothesis
11.
Why do you need a control?
a)
To determine the effect of the independent
variable.
b)
To compare results
c)
To determine the validity of the experiment.
d)
All answers are correct!
12.
The protons equal the
a)
Atomic Mass
b)
Atomic Number
c)
Nuetrons
d)
What is a proton?
13.
The valence shell determines
a)
The atoms ability to react
b)
The atoms charge
c)
An atoms mass
d)
The number of chocolate layers
14.
An atom with different neutrons is a/n ____and an atom with different electrons is a/n _____.
a)
Ion; isotope
b)
Radioactive; ion
c)
Ion; isotope
d)
Isotope; ion
15.
Which of these is a trace element?
a)
Oxygen
b)
Calcium
c)
Hydrogen
d)
Nitrogen
16.
If an atom has 12 protons, how many electrons are in its valence shell
a)
2
b)
12
c)
6
d)
4
17.
The weakest bond is a/n
a)
ionic
b)
hydrogen
c)
covalent
18.
Bonds that are caused by the movement of electrons from one atom to another is a/n
a)
Covalent
b)
Metallic
c)
Ionic
d)
Hydrogen
19.
Bonds that are caused by the movement of electrons from one atom to another is a/n
a)
Covalent
b)
Hydrogen
c)
Ionic
d)
Metallic
20.
Water is an example of this bonding type
a)
Polar ionic
b)
Ionic
c)
Nonpolar Covalent
d)
Polar Covalent
21.
Oxygen has a partial____ charge and hydrogen has a partial ___ charge which causes water molecules to ___ to one another.
a)
Negative, positive, covalently bond
b)
Negative, positive, hydrogen bond
c)
Positive, negative, covalently bond
d)
Positive, negative, hydrogen bond
22.
When atoms with the same electronegativity bond it is
a)
Polar Covalent
b)
Ionic
c)
Nonpolar Covalent
d)
Hydrogen
23.
Cohesion is when water
a)
Works together to cheat on this test.
b)
Sticks to other water molecules
c)
Sticks to other nonpolar substances
d)
Sticks to other polar substances
24.
Black coffee has a pH of 5 and lemon juice has a pH of 2, lemon juice has concentration of ___ times the ___.
a)
30, OH-
b)
1000, H+
c)
30, H+
d)
1000, OH-
25.
Ice is ___ dense than water because the ____ bonds are frozen ____.
a)
Less, hydrogen, closer together
b)
Less, covalent, closer together
c)
More, hydrogen, farther apart
d)
Less, hydrogen, farther apart
26.
If you pour a______substance in water it will not dissolve but a_____substance will dissolve.
a)
Hydrophillic, polar
b)
Polar, hydrophobic
c)
Hydrophobic, hydrophillic
d)
Hydrophobic, nonpolar
27.
The thermoregulation in our body and in Lake Erie are due to
a)
The energy needed to break covalent bonds
b)
The energy needed to break hydrogen bonds
c)
The energy needed to break ionic bonds
d)
All answers are correct
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