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WorksheetsFinal 1 Review 2026
Total questions: 54
Worksheet time: 2hrs 40mins
An _______ is the smallest basic unit of matter
mass
molecule
compound
atom
The nucleus is at the (a) of an atom and contains most of its (b)
weight
volume
density
Match the following
The Charge of a Proton is
Positive +
The Charge of a Neutron is
Neutral or zero 0
The Charge of a Electron is
Negative -
Match the numbers with the atom
number of electrons (a)
Number of protons (b)
Number of neutrons (c)
Mass (d)
15
12
11
Organize these options into the right categories
Proton
Neutron
electron
negative charges
electron cloud
positive charges
neutral Charges
Mass of the atom
Volume of an atom
What two parts make up the mass of the atom?
Proton
Electron
Electron cloud
Electron
Neutron
A ______ are two or more atoms bonded together
Molecule
atom
element
forces
Match the following
Two or more DIFFERENT elements bonded Ex CH3
Compound
Two or more of the SAME element bonded Ex 02
Molecule
One type of Atom Ex K
Element
Match the following
K
N3
CO2
Au
O4
CH4
Co
I2
C6H12O6
C57H104O6
NaCl
Match the following
Na
Co3
SO4
Ar
Ca4
PO4
Hg
K2
K6S12H6
P57C118I6
CoTi
Match the symbols with the correct parts of an atom
Proton
P+
Neutron
n0
electron
e-
Atomic number
ATM #
mass
m
An atom has a mass number of 23 and contains 11 p+. How many neutrons are present in this atom?
(a)
Number of protons (a)
Number of neutrons (b)
What is the mass number of this atom? (c)
What element is this (d)
Match the following about the image
20
Calculating Mass
10
Atomic Number
Ne
Chemical Symbol
20.18
Mass
Neon
Chemical Name
a substance that consists of just one type of atom
element
a small particle that is a building block of matter
atom
a combination of two or more different elements bonded together
Compound
anything that has mass and takes up space
matter
One particle of table salt (NaCl) is best described as a (a) . K2 would be considered a (b) . Ca would be classified as an (c) .
atom
element
mixture
This picture represents which of the following?
(a)
This picture represents which of the following?
(a)
A (a) is a group of two or more atoms held together by chemical bonds. A (b) is a substance which is formed by two or more different types of (c) which are united chemically in a fixed proportion. Many compounds bonded together create a large (d)
What is the total number of atoms in this formula? H2O2
2
4
3
Which chemical formula correctly displays 1 atom of nickel and 2 atoms of Fluorine?
niF2
NIF2
Ni1F2
NiF2
Which element has the greatest number of atoms? AgNO3
Silver
Gold
Nitrogen
Oxygen
Differentiate between an element and a compound.
An element is a pure substance made up of two or more different elements chemically combined, while a compound is a substance made up of only one type of atom.
An element is a substance made up of two or more different elements chemically combined, while a compound is a pure substance made up of only one type of atom.
An element is a mixture of different types of atoms, while a compound is a pure substance made up of only one type of atom.
An element is a pure substance made up of only one type of atom, while a compound is a substance made up of two or more different elements chemically combined.
Is this an Element, Compound, Molecule, or Mixture
Element
Compound
Molecule
atom
What is the name of the small number written at the lower right of a chemical symbol (O2)?
a subscript
a coefficient
a variable
a divisor
Which is the correct formula for:
two nitrogen (N)
five hydrogen (H)
one oxygen (O)
N2H5O
NH5O2
N2H4O2
N2H5O2
An atom has an atomic number of 12 and a mass number of 24. How many neutrons are there in the atom?
12
24
36
0
How many atoms are there TOTAL in:
H2SO4
(a)
3H2SO4
How many elements (a)
How many H atoms (b)
How many sulfur atoms (c)
How many O atoms (d)
How many compounds (e)
2
4
2C6H12O7 ?
How many compounds are there (a)
Carbon atoms? (b)
Hydrogen atoms? (c)
Oxygen atoms? (d)
Total number of atoms (e)
2C12H22O11
How many compounds (a)
Carbon atoms? (b)
Hydrogen atoms? (c)
Oxygen atoms? (d)
Total atoms? (e)
Nora received a measles immunization that measured 12.25 cm long. How many meters was the vaccination?
(a)
Kelsey is measuring her weight in g. She recorded the mass on the scale but realized later that she left her shoes on. She checked and her shoe's weight was 20g. What is Kelsey's true weight?
(a)
During an experiment, a student measures the mass of ice and of liquid water and then places the mixture into a freezer for a day. The table shows the data.
What will the student have at the end of the experiment?
85 grams of ice
185 grams of ice
125 grams of liquid water
150 grams of liquid water
Darlene places a bolt in the graduated cylinder to find its volume. Its starting volume is 89mL. After she puts the bolt in the graduated cylinder the water level rose to 210 mL. What is the volume of the bolt?
(a)
Dr. Smith conducts an experiment to study the effect of a new supplement on the weight gain of rabbits. He divides the rabbits into two groups. One group receives the supplement mixed with their regular diet, while the other group receives only the regular diet. His findings indicate that the supplement reduces weight gain by 25%. He repeats the experiment three times and obtains consistent results.
Dr. Smith concludes that the supplement increases the weight gain of rabbits. Does scientific knowledge support Dr. Smith's conclusion?
Yes; any experiment that is repeated multiple times is scientifically valid.
Yes; his conclusion is backed by the data from his experiments.
No; science cannot be applied to study the effects on rabbits.
No; his conclusion is not supported by the evidence from the experiment because the weight gain decreased.
Smithers thinks that a special juice will increase the productivity of workers. He creates two groups of 50 workers each and assigns each group the same task (in this case, they're supposed to staple a set of papers). Group B is given a special juice to drink while they work. Group A is not given the special juice. After an hour, Smithers counts how many stacks of papers each group has made. GroupA made 1,587 stacks, Group B made 2,113 stacks
Group A
Control Group
Group B
Experimental Group
# of Stappled stacks of paper
Dependent variable
Special Juice
Independent Variable
The task each group does
Constant
An experiment was conducted to determine whether drinking caffeinated soda increases pulse rate. The pulse rates of two groups of people at rest were measured. Group A was then given caffeinated soda and group B was given caffeine-free soda. One hour after drinking the soda, the pulse rates were measured. The participants in the experiment were all the same age, and they were all given the same amount of soda.
pulse rate of each group before caffine
Control Group
The amount of soda given to each group
Constant Variable
Pulse rate of each group after caffine
Experimental group
Type of soda
Independent Variable
Pulse rate
Dependent Variable
A student did an experiment to test how effective different antibiotics are. She treated one paper disk with water, and three others with different antibiotics. Each was placed on a dish where bacteria could grow.
The bacterial growth
Dependent
The size of the paper disks
Constant Variable
The type of antibiotic
Independent Variable
The disk with water
Control Group
Disks with antibiotics
Experimental Group
Which liquid had the highest molecular viscosity? Type the name of the liquid
(a)
The number of teachers at four schools are shown in the bar graph below. The number of teachers at school S is missing. There are a total of 48 teachers at schools S, T and V. Which bar graph represents the number of teachers at school S?
Mr. Lee wants to confirm the metal used in a ring with a mass of 50.29 g. The volume of the ring is 2.35 cubic centimeters (cm3). What is the metal composition of the ring?
(a)
Carla needs exactly 100.00 grams of sulfur powder for an experiment. The picture shows the mass on the scale so far. She did not zero the scale before starting. Carla knows that the weighing paper weighs 3.50 grams. How much more sulfur powder does Carla need?
(a)
Type of biocrust
# of Amoebae
What was the net loss in glacier ice thickness between the years 1980 and 1990?
8m
6m
2m
4m
Is located in the electron cloud
electron
Is located in the nucleus and has a 0 charge
neutron
Is located in the nucleus and has + charge
proton
Contains + and 0 charged particles
nucleus
contains negatively charged particles
electron cloud
Put the following in order from largest to smallest (1 being the largest)
Compound
Molecule
Element
Atom
Proton
n0 = (a) (b) (c)
What is the atomic number of this atom?
(a)
Number of protons (a)
Number of Neutrons (b)
Mass (c)
What element is this (d)
Label the parts of an atom.
Which graph best represents the data from the table
Graph D because the numbers in the table create a steady constant trend
Graph C because it starts in the negative, increases to zero, and continues a positive trend
Graph C because the graph increases and shows a constant trend
Graph D because the numbers in the table create a steady positive trend
1. What question did the scientists who collected this data NOT want to answer? (Choose all that apply)
Are there more female earthworms in the soil in the spring or in the fall?
What is the effect of plowing soil on the number of earthworms?
How is the size of earthworms affected by the seasons?
Does plowing soil affect how fast earthworms grow?
Suzie wants to know the effect of different colors of light on the flowering of plants. She believes that plants can flower best in white light. She buys 5 rose bushes of the same species, which are all approximately the same age and height. She places one in white light, one in blue light, one in a green light, one in red light, and one in the closet. All of the ferns are planted in Miracle-Grow and given 20 mL of water once a day for 2 weeks. Over the next two weeks, Suzie recorded the number of flowers produced by each plant. Match the statements to the correct variable and group.
Number of flowers with no light in a closet
Control group
color of light
Independent Variable
Amount of water given to the rose bushes
Constant
Plants grown in different colors of light
Experimental Group
Number of flowers
Dependent Variable
