Quiz about PSSA Review 2023

Question 1

You need to measure the mass of sugar in an experiment. Which instrument should you use?

Accepted Answer

triple beam balance

Answer

ruler

Answer

graduated cylinder

Answer

beaker

Question 2

Which event is shown in the diagram?

Accepted Answer

uplift

Answer

volcanic eruption

Answer

erosion

Answer

earthquake

Question 3

You state the hypothesis that pea plants grow tallest in sandy soil. To test your hypothesis, you must conduct an experiment. Which pair of variables should both be kept constant during the experiment?

Accepted Answer

amount of water and amount of sunlight

Answer

type of soil and type of plant

Answer

type of soil and height of plants

Answer

type of soil and amount of sunlight

Question 4

Which energy resource does not produce harmful waste or pollution?

Accepted Answer

solar energy

Answer

oil

Answer

coal

Answer

nuclear energy

Question 5

This is a model of the human heart. Which subject would this model be most useful for studying?

Accepted Answer

parts of the human heart

Answer

how the heart interacts with the brain

Answer

different kids of animal hearts

Answer

how the heart has changed over time

Question 6

During a visit to a park, Robin smelled a variety of flowers. She became curious and asked the question, "Do roses smell better than petunias?" Which statement correctly describes Robin's question?

Accepted Answer

It is a poor scientific question because it is not precise.

Answer

It is a good scientific question because it is precise.

Answer

It is a good scientific question because it can be answered by taking measurements.

Answer

It is a poor scientific question because it compares flowers.

Question 7

White fur helps the Arctic hare blend into its snowy environment and avoid being eaten by predators. Which term best describes this feature of the Arctic hare?

Accepted Answer

adaptation

Answer

biotic factor

Answer

acquired trait

Answer

genetic mutation

Question 8

Which kind of pattern are the circular structures in the picture an example of?

Accepted Answer

annual pattern

Answer

monthly pattern

Answer

daily pattern

Answer

hourly pattern

Question 9

Which statement describes why your body is a system?

Accepted Answer

It has parts that work together.

Answer

It needs food for energy.

Answer

It uses oxygen and releases carbon dioxide.

Answer

It can get certain diseases.

Question 10

Which impact results from open pit mining?

Accepted Answer

removal of soil and vegetation

Answer

release of greenhouse gases

Answer

ozone depletion

Answer

oil spills

Question 11

When one atom of sodium (Na) bonds with one atom of chlorine (Cl), sodium chloride (NaCl) forms. Which term describes chlorine in this chemical reaction?

Accepted Answer

reactant

Answer

product

Answer

compound

Answer

mixture

Question 12

Smog is a kind of air pollution. Using which example of technology helps the formation of smog.

Accepted Answer

cars

Answer

cameras

Answer

computers

Answer

telescopes

Question 13

Carl's oven is a system. When he turns on the oven and sets the temperature, he adds information to the system. Which part of the system does turning on the oven and setting the temperature represent?

Accepted Answer

input

Answer

output

Answer

feedback

Answer

subsystem

Question 14

Which statement describes plants but not animals?

Accepted Answer

They use light energy to carry out their life processes.

Answer

They are multicellular organisms.

Answer

They eat other organisms to obtain nutrients that store energy.

Answer

They reproduce sexually.

Question 15

Which form of energy is the energy an object has because of its position or composition?

Accepted Answer

potential energy

Answer

light energy

Answer

electrical energy

Answer

kinetic energy

Question 16

Which statement correctly describes how friction affects a soccer ball rolling across a field?

Accepted Answer

It reduces the speed of the ball.

Answer

It increases the speed of the ball.

Answer

It does not change the ball's motion.

Answer

It changes the ball's direction.

Question 17

The population density of dragonflies in a meadow gradually increased over one summer. What most likely caused this change?

Accepted Answer

Birds that eat dragonflies moving out of the area.

Answer

Birds that eat dragonflies moving into the area.

Answer

Decrease in resources that dragonflies need.

Answer

Disaster such as fire.

Question 18

Which human activity do many scientists believe to have contributed to global warming?

Accepted Answer

burning fossil fuels

Answer

overfishing

Answer

pesticide use

Answer

open pit mining

Question 19

Which example is the best thing to measure with a stopwatch?

Accepted Answer

the time it takes a toy car to roll down a small ramp

Answer

the distance between your house and school

Answer

how many hours an eclipse lasts

Answer

how far a car can go on a gallon of gasoline

Question 20

Which statement is an inference based on the image?

Accepted Answer

Saturn is not the only planet in the solar system with rings.

Answer

Saturn is the only planet in the solar system with rings.

Answer

Saturn is more massive than Uranus.

Answer

Saturn and Uranus are made of the exact same elements.

Question 21

Which statement describes the conservation of a nonrenewable resource?

Accepted Answer

using oil wisely

Answer

decreasing water use

Answer

clearing land for farming

Answer

filtering air pollutants

Question 22

Which example is a development in technology that increased our knowledge about stars and other planets?

Accepted Answer

invention of the telescope

Answer

invention of the telephone

Answer

discovery of the subatomic particles

Answer

improvements made to the microscope

Question 23

Which statement describes how nonrenewable energy resources differ from renewable energy resources?

Accepted Answer

Only a renewable energy resource can be replaced as quickly as it is used.

Answer

Only a nonrenewable resource can be replaced as quickly as it is used.

Answer

Only a nonrenewable energy resource is expensive to use.

Answer

Only a nonrenewable energy resource harms the environment.

Question 24

Which statement describes why a pond is a system?

Accepted Answer

In a pond, the fish and frogs eat the insects and plants.

Answer

A pond is filled with water.

Answer

Fish and frogs swim in a pond.

Answer

The water in a pond can be polluted by chemicals from farm fields nearby.

Question 25

Which statement correctly compares asteroids and planets?

Accepted Answer

Both asteroids and planets revolve around the Sun.

Answer

Only planets revolve around the Sun.

Answer

Both asteroids and planets are large and gaseous.

Answer

Only planets are found in our solar system.

Question 26

Which phrase represents a movement around the Sun that takes one Earth year?

Accepted Answer

Earth's revolution

Answer

moon's rotation

Answer

moon's revolution

Answer

Earth's rotation

Question 27

Which rock forms from sediment that gets compacted and cemented together over time?

Accepted Answer

sandstone

Answer

granite

Answer

basalt

Answer

gneiss

Question 28

Which statement correctly describes a positive impact of using cars?

Accepted Answer

Cars make transportation faster.

Answer

Cars give off chemicals when they burn gasoline.

Answer

Cars make it easier to observe distant objects.

Answer

Using cars results in acid rain forming.

Question 29

Which property is a chemical property that you can use to identify iron?

Accepted Answer

ability to rust

Answer

magnetism

Answer

color

Answer

thermal conductivity

Question 30

Which of these are the moon's phases an example of?

Accepted Answer

pattern

Answer

prediction

Answer

system

Answer

model

Question 31

Which definition best describes a scientific model?

Accepted Answer

representation of a real object or system

Answer

possible answer to a scientific question

Answer

factor that is changed during an investigation

Answer

scientific fact based on repeated experimentation

Question 32

Which is an example of pollution that damages the air?

Accepted Answer

exhaust from a running car

Answer

pesticide applied to crops

Answer

fertilizers transported by runoff

Answer

plastic trash left on a bench

Question 33

Which instrument is the best one to use to observe a butterfly coming out of its chrysalis?

Accepted Answer

hand lens

Answer

microscope

Answer

graduated cylinder

Answer

measuring cup

Question 34

Which energy conversion occurs when a stick of dynamite explodes?

Accepted Answer

potential energy to kinetic energy

Answer

kinetic energy to potential energy

Answer

mechanical energy to chemical energy

Answer

electrical energy to mechanical energy

Question 35

Jon's father has blond hair, but his mother has dark hair. Jon and his two sisters all have dark black hair. Which term describes the trait for blond hair?

Accepted Answer

recessive

Answer

mutated

Answer

dominant

Answer

genetic

Question 36

Which statement best describes why a model is a good way to explain the solar system?

Accepted Answer

A model can be used to shrink something very large to a more manageable size.

Answer

A model can be used to enlarge something that is very small.

Answer

A model always includes the Sun in the middle of the solar system.

Answer

A model represents the planets bigger than they really are, compared to the distances between them.

Question 37

High speed limits can put people in excessive danger from car accidents. Scientific research indicates that lowering speed limits decreases the number of people who are killed in car accidents. However, as speed limits are lowered, traffic congestion often increases, making it difficult to get to places they need to be.

Which statement describes a risk of lowering speed limits?

Accepted Answer

increase in traffic congestion

Answer

decrease in traffic congestion

Answer

decrease in deaths from accidents

Answer

increase in deaths from accidents

Question 38

Which species will most likely undergo extinction when its environment changes?

Accepted Answer

a species that is not suited for the new environment and cannot move to another location.

Answer

a species that adapts to a changing environment through a genetic mutation

Answer

a species with variations, some of which are suited for the new environment

Answer

a species that is not suited for the new environment and moves to another location

Question 39

Which of these is a system made by humans?

Accepted Answer

highway system

Answer

water cycle

Answer

mountains

Answer

digestive system

Question 40

Which force stretches a rubber band when you pull on it?

Accepted Answer

tension

Answer

buoyancy

Answer

friction

Answer

gravity

Question 41

Which instrument can be used to observe only nonliving things?

Accepted Answer

electron microscope

Answer

magnifying glass

Answer

telescope

Answer

compound light microscope

Question 42

Which is an example of point-source pollution?

Accepted Answer

oil spill from a supertanker

Answer

trash floating in ocean water

Answer

feedlot wastes in a river

Answer

salts from irrigation

Question 43

A laundry detergent manufacturer claims its detergent to be 100 percent efficient in taking out all tough stains. Which variable should be tested in order to evaluate the manufacturer's claim?

Accepted Answer

vary the type of stain

Answer

vary the type of detergent

Answer

vary the amount of detergent used

Answer

vary the washing machine cycle

Question 44

Which statement describes a disadvantage of using wind energy?

Accepted Answer

Wind farms must be constructed where winds blow steadily throughout the year.

Answer

Wind farms are expensive to build and the energy is expensive to use.

Answer

Wind farms must be constructed along rivers or coasts.

Answer

Using wind energy releases hazardous gases into the air.

Question 45

A foreign species of aquatic plant know as Hydrilla was recently introduced to freshwater bodies in Pennsylvania. It rapidly reproduces, forming a mat of vegetation under the surface of the water that outcompetes the native vegetation for space, light, and nutrients. When introduced to a new lake, which impact will Hydrilla most likely have on the population of native aquatic plants in the lake?

Accepted Answer

act as a limiting factor to reduce population size

Answer

have no effect

Answer

act a a limiting factor to increase population size

Answer

act a a predator to stabilizer population size

Question 46

The Allegheny River consists of living and nonliving parts. If one kind of animal disappears from the river, all the other parts are affected. Which statement best describes the Allegheny?

Accepted Answer

It is a natural system.

Answer

It is a cycle made by humans.

Answer

It is a natural cycle.

Answer

It is a system made by humans.

Question 47

Two forces act on a cart rolling east. Force A pushes the cart toward the north. Force B pulls the cart toward the south but with twice the amount of force as Force A. Which statement correctly describes how the forces will affect the cart?

Accepted Answer

Because the forces are unbalanced, the cart will change direction.

Answer

Because the forces are balanced, the cart will not be affected by the forces.

Answer

Because the forces are unbalanced the cart will not be affected by the forces.

Answer

Because the forces are balanced, the cart will change direction.

Question 48

Which is an example of a good scientific question?

Accepted Answer

What is the average height of a beagle?

Answer

Is green a nicer color than yellow?

Answer

Do beagles make better pets than poodles?

Answer

How big is a dog?

Question 49

Which definition correctly describes a fault?

Accepted Answer

break that forms in Earth's surface along which movement occurs

Answer

bending of rock layers without breaking as plates collide

Answer

release of melted rock and gases through an opening in Earth's crust

Answer

rapid movement of sediment downhill

Question 50

A farmer wants to find the best conditions for growing pumpkins. Previous research indicates that they grow best in partial sunlight. Which factor is the best choice for an independent variable for the farmer's experiment.

Accepted Answer

amount of sunlight

Answer

type of vegetable

Answer

type of fertilizer

Answer

mass of pumpkin

Question 51

Pablo eats a peach and an orange. Then he states that oranges taste better than peaches. Which example correctly describes Pablo's statement?

Accepted Answer

It is an opinion, because it can change from one person to the next.

Answer

It is scientific theory, because it is supported by evidence.

Answer

It is a fact, because it is supported by observations.

Answer

It is a scientific theory, because it is testable.

Question 52

Which substance will allow electricity to flow through it easily?

Accepted Answer

copper

Answer

rubber

Answer

glass

Answer

wood

Question 53

Which is an example of nonpoint source pollution?

Accepted Answer

chemical run-off from lawns

Answer

wastewater from a leaking pipe

Answer

oil from a leaking underground tank

Answer

chemicals released from a paper mill

Question 54

Which example is a nonrenewable energy resource that takes millions of years to form?

Accepted Answer

petroleum

Answer

sunlight

Answer

alcohol

Answer

methane gas

Question 55

Which is a biotic factor in a desert biome?

Accepted Answer

cactus

Answer

light

Answer

squid

Answer

soil

Question 56

Which statement correctly describes the effect Earth's gravity has on a falling object?

Accepted Answer

It increases the speed of the object to a certain point.

Answer

It continually increases the speed of the object.

Answer

It decreases the speed of the object up to a certain point.

Answer

It increases the distance the object falls.

Question 57

Which step must a scientist take when constructing a model?

Accepted Answer

use relevant data to build the model

Answer

build the model so that it is the same size as the real object or system

Answer

use a computer

Answer

make the model more complex than the real object or system

Question 58

Which statement describes the use of a nonrenewable resource to meet human needs?

Accepted Answer

mineral quartz used in manufacturing

Answer

fish used for food

Answer

ash trees burned as fuel

Answer

river water used for recreation

Question 59

Which task would you most likely use a microscope for?

Accepted Answer

to observe small objects

Answer

to measure distances

Answer

to observe distant objects

Answer

to measure weight

Question 60

In order for a car to move, a series of energy conversions takes place in the car's engine, starting with the burning of gasoline. Which overall energy conversion occurs to get the car moving?

Accepted Answer

chemical energy to mechanical energy

Answer

heat energy to light energy

Answer

mechanical energy to chemical energy

Answer

electrical energy to nuclear energy

Question 61

Which measurement would you use a barometer to determine?

Accepted Answer

air pressure

Answer

amount of rainfall

Answer

how much water vapor is in the air

Answer

wind direction

Question 62

Which statement best describes the purpose of conducting an experiment?

Accepted Answer

to test a hypothesis

Answer

to answer a question

Answer

to collect data

Answer

to prove a hypothesis is correct

Question 63

From nearest to farthest from the Sun, which sequence is correct?

Accepted Answer

Mercury, Venus, Earth, Mars

Answer

Mercury, Earth, Venus, Mars

Answer

Mercury, Venus, Mars, Earth

Answer

Mars, Venus, Earth, Mercury

Question 64

Corn can be used as a source of fuel. Which energy source is the use of corn an example of?

Accepted Answer

biomass

Answer

solar

Answer

geothermal

Answer

tidal

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