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WorksheetsScience
Total questions: 150
Worksheet time: 2hrs 29mins
Name
Class
Date
1.
The pH of a solution is tested, and it is found to be a basic solution. Of the following choices, what could the pH have been?
a)
3
b)
9
c)
7
d)
5
2.
In a neutralization reaction, what are the products of a reaction between an acid and a base?
a)
Another acid and base
b)
Carbon dioxide and a salt
c)
Water and a salt
d)
Either two acids or two bases
3.
Which of the following is NOT a gas that contributes to acid rain?
a)
CO2
b)
H2
c)
SO2
d)
NO3
4.
A solution contains the same number of H+ ions as it contains OH- ions, what will it be?
a)
Acid
b)
Base
c)
Neutral
5.
If a solution reacts with a metal and starts producing a gas, what type of substance is it?
a)
Acid
b)
Base
c)
Neutral
6.
Select the name of the following acid: HF
a)
Hydrofluoric acid
b)
Fluorous acid
c)
Fluoric acid
d)
Hydroflouric acid
7.
Select the name for the following acid: H3PO4
a)
Phosphoric acid
b)
Phosphorous acid
c)
Hydrophosphoric acid
8.
Select the formula for the following acid: Carbonic Acid
a)
H2CO3
b)
HCO3
c)
H4C
9.
Select the formula for the following acid: nitrous acid
a)
HNO2
b)
HNO3
c)
H3N
10.
Select the formula for the following acid: perchloric acid
a)
HClO4
b)
HClO3
c)
HClO2
d)
HCl
11.
Select the name for the following acid: H2S
a)
Hydrosulfuric acid
b)
Sulfuric acid
c)
Sulfurous
12.
Select the name for the following acid: HC2H3O2
a)
Acetic acid
b)
Ethanoic acid
c)
Acenous acid
d)
Hydroacetic acid
13.
Which of the following is a base?
a)
Orange juice
b)
Water
c)
Vinegar
d)
Dishwashing detergent
14.
Which of the following statements is correct?
a)
Blue litmus paper turns red when placed in a base.
b)
Red litmus paper turns blue when placed in a base.
c)
Blue litmus paper stays blue when placed in an acid.
d)
Red litmus paper stays red when placed in a base.
15.
Which of the following is an acid?
a)
Shampoo
b)
Baking soda
c)
Orange juice
d)
Water
16.
Many cleaning solutions are bases. Which of the following is a property of most bases?
a)
Feels slippery
b)
White color
c)
Can only be liquid
d)
Tastes sour
17.
If an element is malleable and ductile it is probably a
a)
metal
b)
metalloid
c)
nonmetal
d)
atom
18.
Sulfur, Iodine and Neon are all example so which category of elements
a)
metal
b)
nonmetal
c)
metalloid
d)
particle
19.
Elements that have properties of both metals and nonmetals are considered a
a)
metalloid
b)
metal
c)
nonmetal
d)
metal type
20.
What are the three major categories of elements?
a)
solid, liquid, gas
b)
man made, earth made, both
c)
metals, nonmetals, metalloids
d)
none of the choices are correct
21.
Which of these is the correct chemical symbol for Tin
a)
T
b)
Ti
c)
Tn
d)
Sn
22.
Which of these is the correct chemical symbol for Mercury
a)
M
b)
Me
c)
Hg
d)
He
23.
Which of these is the correct chemical symbol for Silver?
a)
Au
b)
Ag
c)
Ae
d)
Si
24.
Which of these is the correct chemical symbol for Tungsten?
a)
Tn
b)
W
c)
Tg
d)
Ts
25.
What is the most abundant element found in the earth's atmosphere?
a)
Oxygen
b)
Sulfur
c)
Nitrogen
d)
Argon
26.
Chemistry is the study of
a)
Chemicals
b)
Matter
c)
Reactions
d)
Living things
27.
If a material can easily be drawn into the shape of a wire, it is ....
a)
Ductile
b)
Magnetic
c)
Malleable
d)
Reactive
28.
Which scientist is credited for the most successful arrangement of the Periodic Table?
a)
Dalton
b)
Moseley
c)
Mendeleev
d)
Rutherford
29.
Chemical symbols often come from ancient names for the elements. (Often from the Latin or Greek names.)
a)
True
b)
False
30.
If my charge becomes 2+ what does that say about me?
a)
I am stealing 2 electrons
b)
I am losing 2 electrons
c)
I am in period 2
d)
I have an atomic # of 2
31.
The electrons involved in bonding are
a)
found closest to the nucleus.
b)
found in the nucleus.
c)
in the outer (valence) electron level.
d)
the lowest energy electrons.
32.
What is the name of Br6F10 ?
a)
Bromium fluoride
b)
Hexabromine fluoride
c)
Bromium decafluoride
d)
none of the above
33.
Is burning wood a chemical or physical change?
a)
chemical
b)
physical
34.
A change in the size, shape, or state of matter.
a)
chemical change
b)
physical change
c)
chemical reaction
d)
electron change
35.
Which of these is not a mixture?
a)
oil and water
b)
sand and soda
c)
diet soda
d)
all are mixtures
36.
What are the two types of mixtures?
a)
element and sub-atomic
b)
atoms and compounds
c)
homogeneous and heterogeneous
d)
element
37.
Is coffee a Homogeneous Mixture?
a)
YES
b)
NO
38.
When two liquids mix, they are said to be....
a)
soluble
b)
miscible
c)
solution
d)
dissolution
39.
Which list is made of mixtures?
a)
soil, water, soup
b)
carbon dioxide, soil, soup
c)
salt, water, air
d)
atoms, cereal, pizza
40.
What kind of chemical reaction involves two Reactants and one Product?
a)
Decomposition
b)
Synthesis
c)
Combustion
d)
Single Replacement
41.
What kind of chemical reaction is this: C5H10O4 + O2 --> CO2 + H2O ?
a)
Synthesis
b)
Combustion
c)
Single Replacement
d)
Double Replacement
42.
What kind of chemical reaction is this: Al2S3 --> Al + S8 ?
a)
Decomposition
b)
Single Replacement
c)
Synthesis
d)
Double Replacement
43.
What kind of chemical reaction is this: AgF + CaCl2 --> AgCl + CaF2 ?
a)
Decomposition
b)
Single Replacement
c)
Synthesis
d)
Double Replacement
44.
What kind of chemical reaction is this: Na + CaF2 --> Ca + NaF ?
a)
Decomposition
b)
Single Replacement
c)
Synthesis
d)
Double Replacement
45.
What is the most suitable process to obtain salt crystals from seawater?
a)
evaporation
b)
distillation
c)
paper chromatography
d)
filtration
46.
What is the most suitable process to determine how many colour dyes are present in an ink sample?
a)
evaporation
b)
distillation
c)
paper chromatography
d)
filtration
47.
What is a lipid made up of?
a)
Sugar
b)
Vitamins
c)
Glycerol and Fatty Acids
d)
Water
48.
What type of lipid contains double bonds?
a)
Saturated fatty acids
b)
Unsaturated fatty acids
c)
Carbohydrate
d)
Protein
49.
Which best explains why oil is liquid at room temperature while butter is solid at room temperature.
a)
oil contains double bonds
b)
butter contains double bonds
c)
oil is an saturated fat
d)
butter is a saturated fat
50.
Which of the following helps reduce food spoilage?
a)
darkness, no air, low temperature, no moisture
b)
darkness, air, no temperature, no moisture
c)
light, no air, high temperature, no moisture
d)
light, air, high temperature, no moisture
51.
When a skydiver is falling through the air, they are in free fall.
a)
True
b)
False
52.
Does the speedometer of a car read average speed or instantaneous speed?
a)
average speed
b)
instantaneous speed
53.
Which of these animals would probably cause the greatest pressure on the ground?
a)
A fat cow with big feet
b)
A fat cow with small feet
c)
A calf with big feet
d)
A calf with small feet
54.
What type of force is holding this balloon to the wall?
a)
Applied
b)
Gravitational
c)
Magnetic
d)
Electrical
55.
What type of force causes these balloons to move toward or away from each other?
a)
Gravitational
b)
Applied
c)
Magnetic
d)
Electrical
56.
What does the strength of gravity between two objects depend upon?
a)
Mass & distance
b)
Mass & weight
c)
Gravity & inertia
d)
Inertia & mass
57.
On a distance-versus-time graph, a straight line ALWAYS indicates that an object’s speed is _____.
a)
constant
b)
zero
c)
increasing
d)
decreasing
58.
Change in speed over a given period of time is
a)
velocity
b)
motion
c)
speed
d)
acceleration
59.
A train slows from 20 m/s to 10 m/s over a time period of 5 seconds. Find the acceleration
a)
2 m/s
b)
2 m/s^2
c)
-2 m/s
d)
-2 m/s^2
60.
A magnet will attract scissors if the scissors contain:
a)
copper
b)
aluminum
c)
gold
d)
nickel
61.
True or False: All metals are attracted to magnet.
a)
True
b)
False
62.
Where is North Pole of the Earth's magnetic field approximately located?
a)
The Equator
b)
The North Pole
c)
The South Pole
d)
New Brighton
63.
If you cut a magnet in half, what happens to the poles?
a)
One half gets the North Pole, the other half gets the South Pole
b)
Both halves get only a North Pole
c)
Both halves get only a South Pole
d)
Both halves get a North pole and a South Pole
64.
What is responsible for the Magnetic Field around Earth?
a)
The Earth's crust
b)
The Earth's molton iron core
c)
The Earth's mantel
d)
The Sun
65.
An electromagnet's poles may be reversed by:
a)
decreasing the voltage of the coil
b)
increasing the number of coils
c)
changing the direction of current flow
d)
altering the material used to make the coils
66.
Which type of lens is a magnifying glass?
a)
convex
b)
concave
c)
plane
d)
optical
67.
Why is the sky blue?
a)
Light is reflected off of the ocean, causing the sky to appear blue
b)
Blue light waves have a shorter wavelength, causing them to hit more molecules in our atmosphere and scatter blue light
c)
The nitrogen and oxygen molecules in our atmosphere have a blue tint
d)
Clouds and rain droplets cause the sky to look blue
68.
How do Fiber Optics work?
a)
By connecting and transferring energy
b)
By remitting and subtracting power from other fiber optics
c)
By using light pulses to transfer data
d)
By converting sound waves in to binary code
69.
How does light travel through the cable?
a)
Refraction and Reflection
b)
Refraction only
c)
Dispersion
d)
Total Internal Reflection
70.
The person tapping in a signal to send through Morse code is doing what to the message?
a)
encoding it
b)
transmiting it
c)
decoding it
d)
storing it
71.
What increases the amount of information transmitted by fiberoptic cables?
a)
increasing the length
b)
using plastic instead of glass in the cable
c)
increasing the number of fibers
d)
using fewer optical amplifiers along the cable
72.
Why are fiberoptic cables preferred over copper wire in telephone and Internet applications?
a)
used both indoors and outdoors
b)
easier to manufacture and install into office buildings
c)
more flexible and needs no power source
d)
less sensitive to temperature/electromagnetic interference
73.
When would fiber optics most likely be preferred over radio waves for communication?
a)
The content of the communication needs to remain secure
b)
The climate of the area is hot and humid
c)
There are frequent power outages in the area
d)
little money available to build the communication system
74.
Carbon-14 decays by emitting a beta particle, producing
a)
Boron-14
b)
Carbon-12
c)
Nitrogen-14
d)
Beryllium-10
75.
In order of most to least penetrating radiation we have
a)
Alpha , Beta, Gamma
b)
Beta , Gamma , Alpha
c)
Gamma, Beta, Alpha
d)
Gamma, Alpha, Beta
76.
What is coming out of the tops of the cooling towers of a nuclear power plant?
a)
Carbon dioxide
b)
Water vapor
c)
Hydrogen oxide
d)
Pollution
77.
An example of a parallel circuit is
a)
the wiring in a house
b)
a flashlight
c)
a single circular path
78.
What is a benefit of using a parallel circuit?
a)
It gets confusing.
b)
There are no problems.
c)
If one light goes out, it does not affect the others.
d)
If one light goes out, they all go out.
79.
If two negative charges are held close together and then released, the charges will
a)
accelerate toward each other.
b)
accelerate away from each other.
c)
not move.
d)
move at a constant speed away from each other
80.
How is the electric force between two charges affected when both of the charges are doubled?
a)
four times as much
b)
two times as much
c)
half as much
d)
one quarter as much
81.
Lightning bolts occur between
a)
clouds and the ground
b)
clouds
c)
both of the above
82.
Good insulators
a)
have electrons free to move around
b)
have tightly bound electrons
c)
have electrons do not move at all
83.
The type of waves that require medium to pass:
a)
Mechanical Waves
b)
Electromagnetic Waves
84.
Which wave in the diagram has the greatest wavelength?
a)
1
b)
2
c)
3
d)
4
85.
Which wave in the diagram has the greatest frequency?
a)
1
b)
2
c)
3
d)
4
86.
Which of the following can sound travel through?
a)
Solid
b)
Liquid
c)
Gas
d)
All States of Matter
87.
What types of waves carry energy at a right angle or perpendicular to the direction of the energy flow?
a)
Longitudinal waves
b)
Transverse waves
c)
Sound waves
d)
P-waves
88.
What are the parts of a longitudinal wave?
a)
Compressions and rarefactions
b)
Crests and troughs
c)
Compressions and crests
d)
Rarefactions and troughs
89.
Light is an example of which type of wave?
a)
Transverse
b)
Longitudinal
c)
Both
d)
Neither
90.
What is a herbivore?
a)
an animal that gets energy from eating other animals
b)
an organism that gets energy from eating only plants
c)
an animal that gets energy by eating both plants and other animals
d)
an animal that eats only herbs
91.
An animal that gets energy from eating both plants and animals is a
a)
herbivore
b)
carnivore
c)
omnivore
d)
autotroph
92.
What is the definition of Eukaryote
a)
cell without a nucleus
b)
cell with a nucleus
c)
get its food
d)
many cells
93.
What is the definition of Prokaryote?
a)
cell without a nucleus
b)
cell with a nucleus
c)
makes its own food
d)
one cell
94.
What are the building blocks of proteins called?
a)
DNA
b)
RNA
c)
Ribosomes
d)
Amino Acids
95.
Who is the father of genetics?
a)
Charles Darwin
b)
Gregor Mendel
c)
Dimitri Mendeleev
d)
Hans Krebs
96.
The scientific study of heredity is ____.
a)
Genetics
b)
Punnett squares
c)
Inheritance
d)
Biology
97.
Red/green color blindness is a recessive trait. A woman who is a carrier for this allele marries a normal-vision male. What is the probability that they will have a child who is color blind?
a)
1/4
b)
1/2
c)
3/4
d)
1
98.
Why is DNA important?
a)
it is very small and very complicated
b)
it's in everything
c)
it serves as the blueprint for traits of all living things
d)
because we eat it every day for energy
99.
Which organelle is DNA usually found in?
a)
cell membrane
b)
vacuole
c)
chloroplast
d)
nucleus
100.
The drawing shows the structure of what molecule?
a)
A DNA molecule
b)
A lipid molecule
c)
A carbohydrate molecule
d)
A protein molecule
101.
What is the original source of almost all energy in most ecosystems?
a)
carbohydrates
b)
sunlight
c)
water
d)
carbon
102.
An organism that produces its own food supply from inorganic compounds is called a(an)
a)
heterotroph
b)
consumer
c)
detritivore
d)
autotroph
103.
Organisms that look similar and can produce fertile offspring
a)
Species
b)
Fish
c)
Community
d)
Trees
104.
The study of how living things interact with one another and with their environment.
a)
Biology
b)
Lithology
c)
Ecology
d)
Farmacology
105.
What do polar bear eat?
a)
Dolphins
b)
Turtles
c)
Sharks
d)
Seals
106.
People kill sharks for which part of their body?
a)
Fins
b)
Teeth
c)
Bones
d)
Eyes
107.
We are facing extinction in Malaysia because people love to eat our eggs. Who are we?
a)
Starfish
b)
Dolphins
c)
Whales
d)
Sea turtles
108.
I am white and black. I come from Sichuan. Who am I?
a)
Giant panda
b)
Zebra
c)
Giraffe
d)
Elephant
109.
What is the largest known mammal that has ever lived?
a)
Blue whale
b)
Elephant
c)
Dolphin
110.
In how many seconds can a cheetah accelarate from 0 to 96 km/h?
a)
3
b)
6
c)
9
111.
A koala is a...
a)
Marsupial
b)
Mammal
c)
Reptile
112.
Where does the Polar bear live?
a)
Artic
b)
Atlantic
c)
Antartic
113.
Look at the leaves in the picture. What kind of tree do they belong to?
a)
Maple
b)
Oak
c)
Pine
d)
Birch
114.
What kind of tree do these leaves belong to?
a)
Oak
b)
Maple
c)
Birch
d)
Elm
115.
Where do most plants produce their food?
a)
Stem
b)
Leaves
c)
Roots
d)
Seeds
116.
What is one way to make sure water is safe and purely disinfected?
a)
Boil it
b)
Filter it
c)
Chemicals
117.
A compass always points to:
a)
the North Pole
b)
Magnetic North Pole
c)
True North
d)
0 Degrees Declination
118.
Which of the following nutrients provides energy to the body?
a)
Carbohydrates
b)
Vitamins
c)
Water
d)
Minerals
119.
Which of the following nutrients is important for body, cell, and muscle growth and repair?
a)
vitamins
b)
fats
c)
proteins
d)
carbohydrates
120.
Which nutrient supplies the most calories per gram?
a)
carbohydrates
b)
fats
c)
protein
d)
water
121.
Bread is a great source of which energy nutrient?
a)
Carbohydrates
b)
Fats
c)
Proteins
d)
All of the above
122.
Which type of fats are the "bad fats"?
a)
All fats are bad.
b)
Saturated fats
c)
Unsaturated fats
123.
Which of the following is a term for a group of similar organisms that can reproduce fertile offspring?
a)
individual
b)
population
c)
species
d)
fossil
124.
Who was the naturalist that traveled the world to study plants and animals?
a)
Albert Einstein
b)
Charles Darwin
c)
Charles Barkley
d)
Isaac Newton
125.
which of the folllowing is an exammple of a vestigial structure?
a)
the wings of a red-tailed hawk
b)
the hind limbs of a house cat
c)
the fins of sharks
d)
the wings of an ostrich
126.
Some organisms that share a common ancestor have features that have different functions, but similar structures. These are known as
a)
vestigial structures
b)
analogous structures
c)
homologous structures
d)
fossil structures
127.
What species of dinosaur is this?
a)
Triceratops
b)
Torosaurus
c)
Utahceratops
d)
Pachyrhinosaurus
128.
What killed the dinosaurs, accoring to most scientific evidence? ?
a)
Climate change after an asteroid impact.
b)
Aliens
c)
People
d)
Pollution
129.
What did this dinosaur eat?
a)
Plants
b)
Meat
c)
Plants and meat
d)
Hot dogs
130.
Name the dinosaur
a)
Velociraptor
b)
Braciosaurus
131.
Name of the Dinosaur?
a)
Brachiosaurus
b)
Velociraptor
c)
Ankylosaurus
d)
Stegosaurus
132.
How many eggs does a penguin lay at a time?
a)
5
b)
3
c)
54
d)
1
133.
What do penguins NOT eat?
a)
Fish
b)
Bugs
c)
Krill
d)
Squid
134.
What is a baby penguin called?
a)
Puppy
b)
Chick
c)
Calf
d)
Cub
135.
Why are penguins feathers black and white?
a)
to help them swim better
b)
they are going on a date and need to look good
c)
to camouflage them on the snow and in the water
d)
to help them toboggan on the ice.
136.
A group of penguins all of one species is called a _________________.
a)
global
b)
waddle
c)
escape
d)
colony
137.
Can penguins fly?
a)
Yes
b)
No
138.
This type of cloud is thin, wispy, and made of ice crystals
a)
cumulus cloud
b)
stratus cloud
c)
cirrus cloud
d)
cumulonimbus cloud
139.
what type of cloud is shown?
a)
cumulus
b)
cirrus
c)
stratus
140.
People who study fossils are called ____.
a)
meterologists
b)
fossilologists
c)
paleontologists
d)
fossil hunters
141.
Which of the following is NOT something you could learn from a fossil?
a)
The size of the animal
b)
What the animal ate
c)
The color of the animal
d)
Where the animal lived
142.
This rock formed when bits of other rocks became pressed into a solid. What type of rock is it?
a)
Sedimentary Rock
b)
Metamorphic Rock
c)
Igneous Rock
143.
This rock was found near the mouth of a volcano. What type of rock is this?
a)
Sedimentary
b)
Igneous
c)
Metamorphic
144.
which material does sound travel the fastest?
a)
solid
b)
liquid
c)
gases
145.
A student holds two vibrating objects. Object A is vibrating faster than object B. Which statement is true?
a)
A is louder than B
b)
B is louder than A
c)
A will have a higher pitch than B
d)
B will have a higher pitch than A
146.
A student in a band notices that a drum vibrates when another instrument emits a certain frequency note. This phenomenon illustrates
a)
reflection
b)
refraction
c)
resonance
d)
doppler effect
147.
If a star is being observed from Earth and it's light has shifted towards the blue side of the electromagnetic spectrum it would be...
a)
Moving towards the Earth
b)
Moving away from the Earth
c)
This is a trick question that cannot be answered
d)
It isn't a star, it is a very large blueberry.
148.
What electronic component allows current to flow in one direction only?
a)
Resistor
b)
LED
c)
Didode
d)
Switch
149.
If you compare electron flow to a water flowing through a hose the current is similar to what? .
a)
The size of hose
b)
the amount of water moving through the hose
c)
how fast the water is moving through the hose
d)
You can't compare the two
150.
Which color wire is used for ground/earth in electric circuits?
a)
Red
b)
Black
c)
Green
d)
Yellow
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