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WorksheetsBroward Test Questions Horvath (Master)
Total questions: 82
Worksheet time: 4hrs 6mins
What is the 4th planet from the sun?
Earth
Mars
Pluto
Venus
According to the modern classification system, which list is written correctly from least specific to most specific?
species, genus, family, order
phylum, class, genus, order
class, order, genus, species
phylum, order, species, family
Joe has a cat with black fur (BB) and a cat with white fur (bb). What would be the genotype of their offspring?
BB
Bb
bb
Bbbb
Refer to the diagram above, showing a food web. The arrows show the direction of energy flow. Each arrow points from the organism that is consumed to the organism that consumes it. Use the information in the food web to answer the questions that follow.
Which statement best explains why decomposers are an important part of this food web?
They use sunlight to make their own food.
They give off oxygen for animals to breathe.
They provide camouflage for small animals.
They make nutrients available to plants.
Which of the following living things in the pond system uses the energy from sunlight to make its own food?
Insect
Frog
Water lily
Small fish
Andrea is training to run in a marathon—a 26.2-mile race. For one of her training runs, she will be running for several hours. She plans to eat several energy bars during the run.
Why is it important for Andrea to eat during her run?
The protein in the energy bars will help her to build stronger muscles.
The energy bars will replace the sugars her body is breaking down for energy.
The energy bars will deliver important vitamins her body needs during the run.
The carbohydrates in the energy bars will replace the oxygen her cells use in the run.
Which of the following is NOT a way carbon dioxide returns to the atmosphere?
decay of organisms
emissions by factories
photosynthesis
respiration
If air pollution causes the rain that falls on this pond to become much more acidic, after two years how will this acidity affect the living things in this pond?
There will be more plants and animals because the acid is a source of food.
There will be fewer plants and animals because the acid will dissolve many of them.
There will be fewer plants and animals because many of them cannot survive in water with high acidity.
There will be more plants and animals because the acid will kill most of the disease causing microorganisms.
Male crickets chirp to attract a mate. Chirping is dangerous because it can attract predators of the crickets like birds or bats. Sometimes, other male crickets will wait quietly and intercept the female on her way to a chirping male. How is the cricket that intercepts the female cricket at an advantage?
The male will be more attractive to females and predators.
The female is more attracted to the male and the predator.
The female is less likely to get eaten and less likely to reproduce.
The male will be less likely to attract predators and more likely to reproduce.
Susan noticed that hummingbirds in her yard visited all the flowers, but especially seemed to like the red trumpet-shaped ones. She read that they use the nectar in the flowers for food. She assumed that since the parents were eating nectar, they must feed their babies only nectar as well. To her surprise, she saw hummingbirds bringing small spiders and insects to feed the young hummingbirds.
How does this new evidence affect her original assumption?
She should stick to her assumption that the babies eat nectar since she thought that first.
She should believe what she read in the book and disregard what she witnessed.
She should change her original assumption that they only feed their babies nectar.
She should ask other people what they think and agree with the majority.
A scientist has been studying bullfrogs for many years. She has noticed that these bullfrogs are now laying eggs 8 days earlier than they did 20 years ago when she first began studying them. The trees around the pond have also grown taller and shade the water more than they did 20 years ago. What would be the best thing for the scientist to do next?
See if she can determine why they are laying eggs earlier.
Choose a different species of frog to study for the next twenty years.
Conclude that the changed tree heights have affected the frogs.
Assume that the water temperature must have risen so frogs can lay eggs earlier.
In the picture of a cell below, which label indicates the part of the cell that contains most of the cell's genetic material?
1
2
3
4
Which of the following statements is TRUE about competition between organisms with the same needs when resources are limited?
Animals are the only organisms that compete for resources.
Plants are the only organisms that compete for resources.
Neither plants nor animals compete for resources.
Both plants and animals compete for resources.
Ants burrow into a thorn of the Acacia tree to live and eat sugar secreted by the tree. These ants are a benefit to the Acacia because they attack the tree's predators. What type of relationship do the ants and these trees share?
commensalism
competition
mutualism
parasitism
Look at the two pictures below. They show what happened when two solid blocks were each put in a jar containing a liquid. Based just on what you can see in the pictures, what can you say about the blocks and the jars?
The liquid in the jars must be water.
The block in jar 1 weighs more than the block in jar 2.
The block in jar 1 is floating lower in its liquid than is the block in jar 2.
The block in jar 1 must be made of metal and the block in jar 2 must be made of wood.
Which of the following is NOT made up of atoms?
Heat
A gas
A cell
A solid
Based on its location on the partial periodic table shown below, which element would you predict has chemical properties that are most similar to argon (Ar)?
Chlorine (Cl)
Helium (He)
Nitrogen (N)
Zinc (Zn)
What atoms combine to make up a molecule of water (H 2 O)? SC.8.P.8.5
1 hydrogen, 1 oxygen
1 hydrogen, 2 oxygen
2 hydrogen, 1 oxygen
2 hydrogen, 2 oxygen
All of the following would be helpful in separating a mixture of sand and salt EXCEPT
a magnet
a glass cup
a filter paper and funnel
water
The chart below shows part of the electromagnetic spectrum. Which statement is true regarding this part of the spectrum?
Violet has the longest wavelength.
Violet has the highest frequency.
Violet has the lowest energy levels.
Violet is not able to be seen by humans.
Pat has two kinds of plant food,"Quickgrow" and "Supergrow." What would be the best way for Pat to find out which plant food helps a particular type of houseplant grow the most?
Put some Quickgrow on a plant in the living room, put some Supergrow on a plant of the same type in the bedroom, and see which one grows the most.
Find out how much each kind of plant food costs, because the more expensive kind is probably better for growing plants.
Put some Quickgrow on a few plants, put the same amount of Supergrow on a few other plants of the same type, put all the plants in the same place, and see which group of plants grows the most.
Look at the advertisements for Quickgrow, look at the advertisements for Supergrow, and see which one says it helps plants grow the most.
Mandy wanted to see if a new, environmentally-friendly pesticide will prevent insect damage to tomato plants. After making her hypothesis, she conducts her experiment. She treats five tomato plants with traditional pesticide and five with the new pesticide. Mandy also leaves five plants untreated as a control. She makes careful notes of how she set up her experiment and then records her data about all of the plants. Why is it important for Mandy to record her procedures and data accurately?
so that the hypothesis will always be correct
so that she can look intelligent when she presents her data
so that society does not waste money on buying pesticides that do not work
so that other scientists can replicate the experiment and make sure the results are correct
Alex and Jennifer conducted an experiment to test reaction times in grabbing a meter stick after it is dropped. They each tested 15 friends. Alex dropped the meter stick for his friends and Jennifer dropped the meter stick for her friends while the other one timed the reactions. Jennifer's friends reacted, on average, 0.9 seconds faster than Alex's friends. Jennifer concluded that her friends were faster. Which of the following should she do next to check her results?
Try a different reaction time experiment.
Try the experiment again, this time using a ruler instead of a meter stick.
Repeat the experiment as it was done the first time but using only Jennifer's friends.
Repeat the experiment and have one person drop the meter stick for all the friends tested.
Francesca creates a model that shows the movement of the tectonic plates of the Earth's surface. If she wants to use the model to understand the concept of how a mountain is formed, how does that model help her?
It shows all of the plates in the correct layout.
It explains in detail how mountains are formed.
It displays details that cannot be seen in a drawing.
It speeds up a process that takes millions of years.
In science, a theory is different from how we use the term "theory" to apply to everyday ideas. The statement, "It's only a theory" might mean something very different than "theory" when used as a scientific term. What is the best way to explain the word, "theory," when used in science?
In science, there is no difference between a law and a theory.
In science, there are few principles that can be considered theories.
In science, a theory is well supported by observations and/or experimental data.
In science, a theory is a completely accurate and reliable fact about natural events.
In what way is a scientific law different from a scientific theory?
A law is true in all situations and all circumstances, while a theory is only true in certain instances.
A law describes the major ideas of the universe, while theories are based on the smaller ideas of the universe.
A law is based on testable facts and data, while a theory is just a combination of one or more hypotheses that have not been tested.
A law expresses a relationship between two or more variables, while a theory explains the causal mechanism of how something happens.
Christy wants to find out if the birds that visit the bird feeders in her backyard would rather build nests in birdhouses or in trees. She puts a birdhouse next to the feeder containing sunflower seeds and hangs a feeder containing cracked corn from a tree. She observes the birds' nesting activities over the next two weeks and records her observations. Which of the following would improve Christy's investigation?
putting more food in both bird feeders
setting the feeders up closer to each other
putting the same kind of food in both bird feeders
setting up a third bird feeder containing fruit near a bird bath
Humans, dogs, and trees are all living things. In which of these organisms would you find DNA molecules?
Only in humans
Only in humans and dogs
In humans, dogs, and trees
DNA molecules are not found in any of these organisms
In a human body, which of the following represents the highest level of structural organization?
an atom in the lung
lung tissue
the lungs
the respiratory system
Which of the following is something that all living organisms have in common?
They all contain at least one cell.
They all need a source of oxygen.
They all use other organisms for food.
They all find mates to reproduce.
Sandra measured her heart rate and her breathing rate at rest and again after doing 50 jumping jacks. What is the main reason that both her heart rate and her breathing rate went up with exercise?
They both sped up to supply her working muscles with enough oxygen to remain in homeostasis
Her lungs and heart ran short on oxygen while she was exercising and sped up to maintain homeostasis
Her muscles were out of shape and required extra blood and oxygen in order to maintain her jumping pace
They both increased in order to carry heat away from her working muscles more efficiently
The infection-fighting cells that are produced by the immune system are manufactured in specific places around the body, for example, in the lymph nodes and the spleen. However, an infection can occur anywhere in the body. How do these infection-fighting cells manage to move around the body and get to the sites of infection?
There are lymph nodes every few millimeters all over the body.
They are excreted and float freely around the body, hunting infections.
They are carried around the body in the circulatory system.
They are moved around the body as muscles squeeze against them.
Which characteristic is shared by all cells?
They need energy.
They reproduce sexually.
They make their own food.
They move from place to place.
Francesca is drawing a picture of the electromagnetic spectrum. She needs to order the types of electromagnetic radiation from the lowest to highest frequency. Which of the following shows the correct order of the electromagnetic spectrum, from lowest to highest frequency
visible, UV, infrared, X-ray, microwave, radio, gamma
radio, visible, microwave, infrared, UV, X-ray, gamma
gamma, UV, microwave, infrared, radio, X-ray, visible
radio, microwave, infrared, visible, UV, X-ray, gamma
Warren is tuning his guitar. He notices that as he tightens the string, the pitch of the string increases. Which best explains why tightening the string raises the pitch?
It makes the string more flexible.
It improves the string's ability to make sounds.
It increases the frequency of the string's vibration.
It allows sound waves to move along the string more easily.
Arianna is experimenting with different materials to see which one will transmit sound the fastest. Through which of the following materials will sound waves travel the fastest?
air
concrete
oil
water
On a sunny day, Heidi and some of her classmates are playing kickball during PE. She kicks the ball past second base, and it rolls uphill to a stop. She runs to first base, but before she gets any farther, the bell rings and everyone has to go back inside.
Which of these is an example of kinetic energy changing to potential energy?
the ball rolling uphill to a stop
the bell ringing inside the school
the Sun warming the playground
the players running from base to base
Vinnie places his cold drink on the roof of a hot car. Which of the following correctly describes what happens next?
The temperature of the drink increases as it sends cold into the hot metal of the car.
Heat is transferred from the car into the drink and increases the temperature of the drink.
Cold is transferred from the drink into the metal of the car, decreasing the temperature of
The temperature of the area under the drink decreases until it is the same temperature as
Two boys wearing in-line skates are standing on a smooth surface with the palms of their hands touching and their arms bent, as shown above. If Boy X pushes by straightening his arms out while Boy Y holds his arms in the original position, what is the motion of the two boys?
Boy X does not move and Boy Y moves backward.
Boy Y does not move and Boy X moves backward.
Boy X and Boy Y both move backward.
The motion depends on how hard Boy X pushes.
Gordon is making a list of forces for his science class. Which of the following should Gordon NOT list as a force?
gravity
friction
a push or pull
mass
Ignoring mass and weight contributed by fuel, what happens when the space shuttle takes off and moves away from Earth?
Its mass decreases and weight increases.
Its mass increases and weight decreases.
Its mass remains constant and weight decreases.
Its mass remains constant and weight increases.
Gravity is a force that every mass exerts on every other mass. When you jump up in the air, not only does the Earth exert a gravitational force on you, but you also exert a gravitational force on the Earth. You, of course, fall back down to the Earth. Which of the following explains why the Earth is not moving toward you when you jump up in the air?
Earth exerts a gravitational force on itself.
You don't weigh enough to affect Earth's surface.
Your mass is very small compared to Earth's mass.
Earth's fixed orbit around the Sun keeps it from moving.
An object travels at constant speed, and its distance and time are shown in the graph. What is the average constant speed of the object between 3 and 5 seconds?
25 m/s
50 m/s
150 m/s
300 m/s
An object travels at constant speed, and its distance and time are shown in the graph. What is the average constant speed of the object between 2 and 5 seconds?
25 m/s
50 m/s
150 m/s
300 m/s
What happens when the forces applied to an object at rest produce a net force of zero?
The object will move at constant speed.
The object will have positive acceleration.
The object will have negative acceleration.
The object will not move at all.
Jacob went down to the lake on a very still day. The water's surface was completely smooth and he could see a tree reflected perfectly in the water. A breeze came up and disturbed the surface of the water and the reflection of the tree disappeared. Why could he see the tree's reflection when the water was still, but not when it was disturbed?
The disturbed surface made the light waves reflect in many directions, breaking up the image
The disturbed surface allowed some of the light waves to penetrate into the water, making gaps in the image
The disturbed surface kept the light waves from reflecting, making it impossible to see an image
The disturbed surface changed the light waves' wavelengths, changing the reflected image
Andrea held her hand up in front of a light and a shadow in the shape of her hand appeared on the opposite wall. What property of light explains why the shadow appeared?
Light passes through all objects.
Light travels in a straight line.
Light bends around objects in its path.
Light waves are refracted by solid objects.
When Charlie came home from school, he turned on a garden hose that had been sitting in the sun all day. The water that came out of the hose was so hot, he could hardly touch it. What happened to the water molecules that made the water feel so hot?
The solar energy hitting the hose made the water molecules move faster.
The individual water molecules got larger as they absorbed the solar energy.
The warmth of the soil around the hose made the water molecules move slower.
The heat energy from the Sun was stored as chemical energy in the water molecules.
Hilary put some ice cubes in a glass of water, and the ice cubes melted. What is the best evidence she can use to show that the melting of the ice is a purely physical change and not a chemical change?
Even though the ice and the liquid water look different, they can be shown to be made of the same molecules.
When liquid water is put into the freezer and cooled long enough, it will change into a solid form.
She did not need to add any extra heat in order to get the ice to melt in the glass of water.
Although ice is more difficult to see through than liquid water, it does not change color when it melts
Which layer of Earth is divided into plates?
Inner Core
Lithosphere
Outer core
Convection currents occur in which of Earth's layers?
crust
lithosphere
mantle
solid core
What causes the phases of the Moon?
the tilt of Earth on its axis
Earth's shadow being cast on the Moon
the relative positions of the Sun, Moon, and Earth
the elliptical orbit that Earth travels around the Sun
What would happen if Earth’s orbit and the Moon’s orbit were in the same plane?
Eclipses would occur every month.
The Moon would not have phases.
All sides of the Moon would be visible from Earth.
The same side of the Moon would always face the Sun.
Which statement is true regarding measuring distances in space?
An astronomical unit (AU) is larger than a light year.
The time taken for light to travel through our Solar System is longer than that for light to travel through the Milky Way.
The Earth is one astronomical unit (AU) from the Sun.
All of the terrestrial planets are more than one astronomical unit (AU) from the Sun.
Jill is creating a scale model of the Solar System. She uses a basketball to represent the Sun. Which of the following should she use to most accurately represent the size of Earth?
tennis ball
ping pong ball
marble
grain of sand
The Sun's energy and composition is provided by which of the following?
the burning of fossil fuels within the Sun
solar power that produces electricity in the Sun
the Sun's magnetic field
the fusion of hydrogen into helium
Which of the following is the most violent of all solar disturbances?
solar winds
sunspots
prominences
solar flares
There are many objects that are part of our Solar System including planets, moons, asteroids, and the Sun. Which of those objects has the greatest gravitational force?
asteroids
the Sun
moons
planets
Saturn is 9.5 astronomical units (AU) from the Sun and Mars is only 1.5 AU from the Sun. Saturn is also much larger than Mars. Based on this information, how does the average surface temperature on Mars compare to the average surface temperature on Saturn? SC.8.E.5.7
Since Mars is closer to the Sun than Saturn, it has a higher average surface temperature.
Saturn is larger than Mars and absorbs more light, so it has a higher average surface temperature.
Since both planets are more than 1 AU from the Sun, their average surface temperatures are equal.
Even though Saturn is further away, Saturn's rings cause it to have a lower average surface temperature.
The current model of our Solar System is called the heliocentric model, which means the Sun is at the center. Before scientists developed the current model, which is best supported by the evidence, what was believed to be the center of our solar system?
The Solar System had no center because all the planets' orbits were random.
A star other than the Sun was the center of the Solar System.
A black hole was the center of the Solar System.
Earth was the center of the Solar System.
Andy stirred 100 grams of salt (sodium chloride, NaCl) into a pot of water until he could no longer see any grains of salt. If he allows all the liquid to evaporate, how much salt will he find in the pot?
0 grams
50 grams
100 grams
200 grams
Jason thinks that global climate change is not happening because a city in Northern Florida received snow one day in January. Which statement explains what is wrong with Jason's reasoning?
Northern Florida would need to get snow for at least a week for this to be true.
Jason has confused the weather for one day with the climate of a region.
Jason does not realize that Southern Florida would also need to receive snow to make this true.
The climate of Northern Florida would be unaffected since it's already warm in Florida.
The flashlight shown above has no batteries. It is operated by squeezing and letting go of the handle. Inside the body of the flashlight are gears, which are shown below. Which sequence best identifies the energy transfers that take place within the flashlight to produce light?
kinetic -> electrical -> light
kinetic -> chemical -> light
chemical ->kinetic ->light
chemical -> electrical -> light
When a warm air mass and cold air mass come together, like a warm front and cold front, a typical outcome is rain. What explains why rain forms in this situation?
The cold air causes the moisture in the warm air to condense and precipitate as rain.
The cold air is moving faster than the warm air, which causes rain.
Because the cold air is denser, it causes rain.
The two air masses neutralize each other, which results in clouds that produce rain.
What must happen in order for a metamorphic rock to be transformed into an igneous rock?
It must be compressed by high temperatures and pressure within Earth's crust.
It must be soaked in water until it dissolves and reforms in a different shape.
It must be pulled under Earth's crust, melted, and forced out above the crust to cool.
It must be weathered into sand grains and compressed into multiple layers.
Water evaporates and falls back to Earth as rain or snow. What is the primary energy source that drives this cycle?
The wind
The Sun
Air pressure
Ocean currents
Which of the following is true about wind and water changing the size of mountains over many millions of years?
The continuous movement of wind and water changes the size of mountains over many millions of years
Nothing can change the size of mountains over many millions of years, not even the continuous movement of wind and water.
The continuous movement of wind and water changes the size of some mountains, but not all mountains.
Even though mountains change in size over many millions of years, the changes are not due to the continuous movement of wind and water.
The diagram below shows the collision of two tectonic plates in Asia. What is a result of this collision? SC.7.E.6.5
A. Volcanoes erupt periodically.
B. The Tibetan Plateau slowly sinks.
C. The Himalayas increase in height each year.
D. Glaciers on the Tibetan Plateau melt.
Thomasine has a sample of materials and needs to determine its age. She can determine its relative-age by comparing the rock layer the sample came from to another rock layer. Why is it sometimes difficult to determine the age of materials in this way? SC.7.E.6.4
A. The oldest layers of rock are too close to the Earth's liquid mantle.
A. The youngest layers of rocks do not contain enough materials to evaluate.
A. The sequence of rock layers can be disturbed by erosion and earthquakes.
A. The rock layers have too many different types of rocks to determine their age.
Scientists hypothesize that 66 million years ago an enormous asteroid hit Earth, sending out a cloud of dust into the Earth's atmosphere. Which of the following would be evidence to support this hypothesis? SC.7.E.6.4
A. Fossils show that all plant and animal life became extinct.
A. The fossils of ancient trees show very little growth during this time.
A. A large portion of the asteroid is still embedded in the Earth's crust.
A. An identical layer of sediment can be seen in different parts of the world.
All of the following are examples of erosion EXCEPT
A. The wind in the desert blows sand against a rock.
A. A glacier picks up boulders as it moves.
A. A flood washes over a riverbank, and the water carries small soil particles downstream.
A. An icy winter causes the pavement in a road to crack.
Convection currents occur in which of Earth's layers? SC.7.E.6.5
A. crust
A. lithosphere
A. mantle
A. solid core
