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WorksheetsFinal Exam Review
Total questions: 50
Worksheet time: 25mins
A model of Helium (He) atom is shown. Which numbered part of helium atom represents a proton?
Green
Red
When using the Periodic Table, the easiest way to determine how many protons exist in an atom of an element is to look at what?
the element's atomic mass
the element's atomic number
the element's group number
the element's period number
A student sees a diagram in a textbook. What does the symbol in the diagram represent?
a compound
a molecule
an element
an isotope
What three elements are in the same family as iron (Fe)?
oxygen (O), helium (He), and aluminum (Al)
potassium (K), calcium (Ca), and copper (Cu)
ruthenium (Ru), osmium (Os), and hassium (Hs)
chromium (Cr), manganese (Mn), and cobalt (Co)
What makes up a compound?
two or more types of cells chemically combined
two or more types of cells physically combined
two or more types of elements chemically combined
two or more types of elements physically combined
In the reaction shown below, iron reacts with water to form iron oxide and hydrogen gas. Which of the terms below BEST describes the iron (Fe) reactant?
molecule
ion
compound
element
The chemical formula below is an example of: NaCl (Table Salt)
a crystal
an covalent molecule
a metallic compound
an ionic compound
Subscripts in a chemical formula show how many of each kind of atom are in the compound.
True
False
Maybe
IDK
If you stir together the two compounds below, what have you made?
sugar water
water carbonate
carbon hydroxide
salt water
Baking soda is the common name for the chemical sodium bicarbonate. The chemical formula for sodium bicarbonate is listed below. How many different elements are found in this compound?
NaHCO3
5
4
6
1
Which of the following materials is most probably a nonmetal?
a dense, malleable solid
a shiny ball that conducts electricity
a ductile, electrical conductor
a brittle, nonconductive solid
A 10.5 g rock was dropped into a graduated cylinder and the volume of the rock was determined by water displacement (see picture) What is the density of the rock?
5.25 g/mL
1.50 g/mL
25.8 g/mL
1.25g/mL
Joey accidentally got some soap in his mouth. Joey said the soap tasted very bitter. This means the soap was probably
basic
acidic
When iron combines with oxygen in a moist environment, rust forms because of a
chemical reaction
temperature change
physical reaction
density change
The law of conservation of matter states that
the amount of matter does not change in a chemical reaction.
in any reaction, energy is both created and destroyed.
energy and matter can change roles in a chemical reaction, but none are lost.
unnecessary matter is always removed during a chemical reaction.
Which equation below is balanced?
A
B
C
D
In the equation, how do the oxygen atoms demonstrate the law of conservation of matter?
Some of the oxygen atoms were destroyed during the reaction.
The oxygen atoms do not form new molecules in the reaction.
The number of oxygen atoms is reduced equally on either side of the arrow.
The same number of oxygen atoms appear in the reactants and in the products.
The picture shows a model of a helium atom and a model of a lithium atom. Which of the following statements is true about the lithium and the helium atoms?
Lithium has more protons, neutrons, and electrons.
There is no difference between helium and lithium.
Helium has more protons, neutrons, and electrons.
Lithium is much smaller than helium.
Which box would represent a compound?
A
B
C
The pictures below represent the particles of a material. In which picture is the density of the material the greatest?
A
B
C
D
Where are genes located?
In proteins
On chromosomes
In the cytoplasm
Wrapped around DNA molecules
Lucy has brown hair and brown eyes. Traits like hair color and eye color which refer to physical characteristics are considered a person's _________.
DNA
genotype
phenotype
IDK
A student is constructing the model of a single chromosome shown below. The individual segments within the chromosome represent genes that control certain traits. Based on the model, which term BEST describes gene pair #1?
heterozygous
homozygous
dominant
recessive
Allele “A” is dominant in mice and allele “a” is recessive. Two mice with the gene combination “Aa” breed and produce four offspring as shown below. Which offspring has the recessive phenotype?
1
2
3
4
The letters on the outside of a Punnett Square represent _________.
The phenotypes of each parent
The genotypes of each parent
The DNA of each parent
The hybrid traits of each parent
A student is predicting whether the seeds of pea plants produced by the cross shown in the Punnett square below will be wrinkled or round. Round (R) seeds are completely dominant and wrinkled (r) seeds are recessive. This cross will most likely produce what percentage of offspring?
100% round, 0% wrinkled
75% round, 25% wrinkled
50% round, 50% wrinkled
25% round, 75% wrinkled
In pea plants, tall plants are completely dominant and short plants are recessive. What would be the predicted phenotype(s) of the offspring in a cross between a homozygous dominant tall plant and a homozygous recessive short plant?
100% tall
100% short
50% short, 50% tall
25% short, 75% tall
Scientists have developed a strain of bacteria that can manufacture human insulin. What scientific technology did they use to make this new form of bacteria?
computer animation
scanning electron microscopy
nuclear magnetic resonance imaging
genetic engineering (GMO)
Which of these structures surround the cytoplasm in all cells?
the cell wall
the cell membrane
the nucleus
the vacuole
Where in the cell is DNA stored?
Mitochondria
Cytoplasm
Chloroplasts
Nucleus
You observe two cells under a microscope. Both have visible membranes, vacuoles, mitochondria, and other organelles. What will help you identify the plant cell?
the size of the vacuole
the presence of a cell wall and chloroplasts
the shape of the cell
All of the above can help you identify the plant cell.
What is the main difference between a prokaryotic cell and a eukaryotic cell?
Only eukaryotic cells have their genetic material surrounded by a nucleus.
Eukaryotic cells are smaller than prokaryotic cells.
Prokaryotic cells have many organelles, each with their own specialized functions, Eukaryotic cells do not.
Only prokaryotic cells have vacuoles.
What is the function of structure B in the diagram below?
storing substances
packaging and shipping proteins
controlling cell activities
aiding in photosynthesis
Which of the following chemical equations best describes cellular respiration? (Hint: it is the opposite of photosynthesis).
A
B
C
D
The picture below shows the levels of organization of the human body. Which picture shows an organ?
A
B
C
D
Which body system helps the respiratory system distribute oxygen and return waste carbon dioxide to the lungs to be exhaled?
circulatory system
digestive system
muscular system
excretory system
Cardiac, smooth, and skeletal are the three kinds of:
nerves
blood vessels
muscles
immune defenses
A diagram of the human central nervous system is shown below. Two of the major organs of the nervous system are labeled in the diagram. Label II points to the _______.
brain
spinal cord
heart
sense organs
How do the circulatory and urinary systems interact within humans?
The circulatory system carries wastes from all parts of the body to the urinary system, which expels the wastes.
The circulatory system takes in and breaks down food, which is then absorbed by the urinary system for energy.
The urinary system supplies nutrients to the rest of the body through the circulatory system.
The urinary system sends electrical messages to the rest of the body through the circulatory system.
Many of the muscles that a person uses to straighten his fingers are located in the forearm. What connects these muscles to the finger bones so that they can move the fingers?
capillaries
cilia
ligaments
tendons
The nervous system acts to transfer information. Which of the following shows a correct flow of information?
sense organ --> spinal cord --> peripheral nerve --> brain
spinal cord --> sense organ --> brain
brain --> spinal cord --> sense organ
sense organ --> peripheral nerve --> spinal cord --> brain
What is the independent variable in this question?
the amount of moisture
the type of bag
the method of cooking
the number of kernels popped
Which of the following would be the best way to get more reliable results in an experiment?
Change more than one variable.
Decrease the sample size.
Do the experiment more than once.
Do the experiment only one time.
What is the independent variable in the graph? hint: dry mix
solubility
sugar
temperature
water
Kendra needs to find the total mass of her book after balancing it on the triple-beam balance. The masses are 400g, 90g, 1.8g. The total mass is
491.8g
50.8g
508.0g
410.8g
Identify the following as: Qualitative or Quantitative The sun is shining at the pool.
Qualitative
Quantitative
Identify the following as: Qualitative or Quantitative There are 12 people swimming in the pool wearing a black bathing suit.
Qualitative
Quantitative
Match the correct tool with what is used for the measurement: Volume
Graduated Cylinder
Triple Beam Balance
Thermometer
Meter Stick
Match the correct tool with what is used for the measurement: Temperature
Triple Beam Balance
Graduated Cylinder
Meter Stick
Thermometer
Match the correct tool with what is used for the measurement: Mass
Thermometer
Meter Stick
Graduated Cylinder
Triple Beam Balance
