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Two postal delivery workers have different routes. They both travel from the post office, to neighborhoods to deliver mail, and
6 answers
asked by
TWO
2,772 views
Four movers pick up boxes. Each box has a different mass, and each mover applies a different amount of force to lift the box.
4 answers
asked by
TWO
1,112 views
Which statement is correct about the population of peppered moths in modern Britain?
• The dark-colored moths are most common
5 answers
asked by
TWO
588 views
How does a marine iguana maintain homeostasis despite ingesting large amounts of salt with its food?
• Marine iguanas throw up
7 answers
asked by
two
1,387 views
You notice that no two cats at the pet store are exactly alike. Some have spotted fur. Some have striped fur. Some have fur of
10 answers
asked by
TWO
551 views
What happens when a bowl of ice cream is left uneaten on a counter in a warm room?(1 point)
Responses Heat is transferred from
4 answers
asked by
Fecker
518 views
"Claim: Swimming in the ocean is a great experience.
Opposing claim: Some people get attacked by sharks." Which statement is the
8 answers
asked by
one
708 views
A student claims that, according to cell theory, the cell is the basic unit of life, and all cells are created spontaneously. Is
5 answers
asked by
one
254 views
Which term describes how far an object has traveled from its original location?
• position • distance • displacement •
5 answers
asked by
TWO
389 views
Four movers pick up boxes. Each box has a different mass, and each mover applies a different amount of force to lift the box.
5 answers
asked by
TWO
846 views
What is the relationship between kinetic energy and thermal energy?(1 point)
Responses Kinetic energy is a measure of thermal
1 answer
asked by
Fecker
174 views
Potassium and nickel are in the same row of the periodic table. What do these elements have in common?
• They have similar
3 answers
asked by
one
336 views
Which function do the stomata perform in photosynthesis?
• capturing light energy • gas exchange • producing glucose •
4 answers
asked by
TWO
520 views
What relationships exist among reasoning, evidence, and explanation?
• Evidence is associated directly with explanation, but
8 answers
asked by
TWO
595 views
Researchers plotted a distribution curve for leg length in a population of birds, with length from short to long on the x-axis.
4 answers
asked by
TWO
313 views
Which organ of the male reproductive system is responsible for the production of sperm?
• urethra • cervix • testes •
3 answers
asked by
one
281 views
In T-ball, batters hit a ball that is placed on a T-shaped stand. Batter A hits the ball by swinging the bat from a resting
6 answers
asked by
TWO
1,299 views
One reason animal cells don't need a central vacuole is because they often have smaller vacuoles for storage. What is another
7 answers
asked by
one
834 views
A musician hits a drum with a drumstick. In three to four sentences, explain the collision forces between the drum and
3 answers
asked by
TWO
1,055 views
Which resource is both nonrenewable and nonrecyclable?
• coal • copper • solar energy • steel
3 answers
asked by
one
435 views
Which observation most likely indicates that only a chemical change has taken place?
• The change cannot be reversed. •
5 answers
asked by
one
1,441 views
Which trait is inherited?
• physical fitness • hair length • scars • freckles
3 answers
asked by
one
183 views
In which form of reproduction does the offspring grow specifically from the stem or root of a plant?
budding • fragmentation
3 answers
asked by
one
605 views
A manual contains instructions for how to build a variety of structures using a set of interlocking bricks. If this scenario is
4 answers
asked by
TWO
664 views
What is a characteristic of the tissue layers that make up the epidermis?
• They generate most of the heat that is produced in
5 answers
asked by
one
402 views
Which of the following was a significant innovation of Lowell Mills that increased productivity?
• combining spinning and
3 answers
asked by
one
371 views
Which option contains all of the other options listed?
• centromere • chromatid • gene • chromosome
4 answers
asked by
two
259 views
Blake and Drew are playing horseshoes. Blake takes the first turn, and his horseshoe lands three-fourths of the way to the
6 answers
asked by
TWO
1,965 views
Which situation describes a negative acceleration?
• a swimmer moving at a constant velocity • a runner slowing down at the
3 answers
asked by
TWO
422 views
Ruby has observed that plants in her garden vary in height. She wants to investigate whether a plant species (species A) grows
1 answer
asked by
TWO
271 views
How do fossil fuels play a role in the carbon cycle?
• Fossil fuels require a lot of carbon to burn, which releases carbon into
1 answer
asked by
TWO
351 views
Levees can help prevent issues during a hurricane. What is a levee?
Responses a system used to warn people about an emergency a
3 answers
asked by
Anonymous
178 views
U-shaped valleys provide evidence of which process?
Responses glacial erosion glacial erosion deposition deposition coastal
3 answers
asked by
Anonymous
140 views
What is it called when heat and pressure change one type of rock into another?
• metamorphism • erosion • deposition •
6 answers
asked by
one
344 views
What is the theory that Earth’s surface is composed of several rock plates that fit together like the pieces of a puzzle?
•
3 answers
asked by
one
337 views
A student tracks the daily weather. The student’s observations are logged in the table. Which factor in the atmosphere best
1 answer
asked by
one
261 views
What causes the sunlight to hit different latitudes on Earth at different angles?
• the Sun's distance from Earth • the Sun's
6 answers
asked by
one
486 views
Which is an abiotic factor that helps determine the characteristics of a biome?
• amount of plant life • amount of
3 answers
asked by
one
318 views
What causes the difference in the amount of sun's heat energy received by the North pole and the equator?
• the amount of
2 answers
asked by
one
162 views
What causes days to be warmer on one part of Earth than on another?
• the angle at which the sun strikes Earth • the rotation
4 answers
asked by
one
573 views
Of these things in an environment, which one is a living thing?
• air (wind) • soil (clay) • water (river) • fungus
4 answers
asked by
one
453 views
Which statement is correct about organelles that provide energy?
• They are found only in animal cells. • They are
3 answers
asked by
one
178 views
What happened to the Arctic Ocean during the past 40 years?
• It has grown smaller. • It has gained more sea ice. • It has
4 answers
asked by
one
325 views
What is the function of the hormones produced by the pineal gland?
• to regulate sleep patterns • to regulate thirst and
1 answer
asked by
one
210 views
A person is walking in the woods and runs into a mother bear and her cubs. Which gland immediately activates?
• adrenal •
1 answer
asked by
one
178 views
The eye is an organ of which major body system?
• skeletal • nervous • muscular • integumentary
3 answers
asked by
one
214 views
How many bones are there in the human body?
• 458 • 103 • 206 • 600
1 answer
asked by
one
241 views
What is a function of the hormone testosterone?
• It triggers the flight or fight response when scared. • It stimulates the
2 answers
asked by
one
188 views
The protein that carries oxygen in our blood is known as
• anemia. • hemoglobin. • amino acid. • messenger RNA.
3 answers
asked by
TWO
319 views
Blake and Drew are playing horseshoes. Blake takes the first turn, and his horseshoe lands three-fourths of the way to the
4 answers
asked by
TWO
334 views
What is the relationship between kinetic energy and temperature?(1 point)
Responses As the kinetic temperature of a substance’s
3 answers
asked by
Fecker
326 views
Consider the following scenario:
You are a scientist observing rodents on the Galapagos Islands. You notice that the introduction
3 answers
asked by
TWO
526 views
How do plants recycle carbon during photosynthesis?
• The carbon in glucose is recycled as carbon dioxide. • The carbon in
3 answers
asked by
TWO
208 views
Nitrogen returns to the atmosphere through a process called
• nitrogen cycle. • denitrification. • nitrification. •
3 answers
asked by
TWO
245 views
The specific heat of concrete is 0.16 kcal/kgC o , and the specific heat of water is 1.00 kcal/kgC o . This means that if 1 kg
2 answers
asked by
Anonymous
581 views
A car is moving on a straight road due north with a uniform speed of 50km/hour when it left through 90degree if the speed
1 answer
asked by
alia
460 views
A garden pea plant heterozygous for both stem height allele and flower colour is crossed with another plant which is dwarf and
4 answers
asked by
chn kh
504 views
Which land features are most likely found near a convergent plate boundary?
Responses volcanoes and mountains volcanoes and
1 answer
asked by
Anonymous
313 views
Which type of information can scientists collect using a seismograph?
Responses pollution levels in the air after a volcanic
1 answer
asked by
Anonymous
93 views
Which statement best supports the claim that personal protective equipment can minimize human exposure to harmful toxins after a
1 answer
asked by
Anonymous
218 views
Which step can ordinary people take to minimize the effects of earthquakes and volcanoes and prevent the loss of human life?
Resp
1 answer
asked by
Anonymous
144 views
Which substance combines with iron in the presence of water to form rust?
Responses nitrogen nitrogen carbon dioxide carbon
3 answers
asked by
Anonymous
341 views
Which statement best demonstrates how data from a global positioning system (GPS) can be used to lessen the effects of a
3 answers
asked by
one
423 views
Which would best model the motion of P waves?
• pulling one end of a spring and releasing it • holding a ball up high and
3 answers
asked by
one
134 views
Which statement best explains the theory of plate tectonics?
• Earth’s crust is composed of rock plates that float on top of
1 answer
asked by
one
253 views
Which location has a high hazard level for seismic activity?
• Texas • California • Montana • Florida
4 answers
asked by
one
784 views
What is the major cause of the greenhouse effect?
• carbon dioxide in the water • soot from coal plants in the water • soot
1 answer
asked by
one
85 views
A continental polar air mass moves into an area. Based on the characteristics of this type of air mass, which changes are most
1 answer
asked by
one
69 views
Which is correct about the relationship between the U.S. population and steel consumption in the early 1900s?
• Steel
1 answer
asked by
one
130 views
Where do hurricanes form?
• over cold ocean waters in polar areas • over warm ocean waters in tropical areas • over the
1 answer
asked by
one
77 views
What led to the increase in steel consumption seen on the graph?
• . Steel consumption increased when more people started to
5 answers
asked by
one
444 views
Salem, Oregon can be located with a yellow star on the map on the right. This map in a larger scale can also be found on the
1 answer
asked by
one
90 views
Which two groups of elements in the periodic table are the most reactive?
noble gases and alkali metals alkali metals and
2 answers
asked by
one
90 views
Why is it more likely to feel sticky in summer than in winter?
• . Because warm air can always hold less water vapor than cool
1 answer
asked by
one
153 views
The air temperature is 70 degrees, and the relative humidity is 90%. Which conclusion can be made?
• The temperature must rise
3 answers
asked by
one
497 views
A forecast indicates a dew point temperature equal to the air temperature. What does this information imply?
• Relative
1 answer
asked by
one
156 views
Use the chemical reaction to answer the question.
CaCO3→CO2+CaOCaCO3→CO2+CaO A scientist heats 30 grams of calcium carbonate
1 answer
asked by
one
264 views
Use the chemical reaction to answer the question.
4Fe+3O2→2Fe2O34Fe+3O2→2Fe2O3 What happens to atoms of Fe and O2 during the
1 answer
asked by
one
238 views
CaCO3→CO2+CaOCaCO3→CO2+CaO
A scientist heats 30 grams of calcium carbonate (CaCO3CaCO3) in the chemical reaction shown. What
2 answers
asked by
one
251 views
Which is correct about how air typically moves?
• High-pressure air and low-pressure air move alongside each other. •
1 answer
asked by
one
130 views
Over which part of the globe do the prevailing winds blow west to east?
• between 0ºN and 30°N latitude • between 30°N and
2 answers
asked by
one
191 views
How do prevailing winds produce ocean currents?
• Earth’s rotation causes air movement. • Heat from the sun causes
1 answer
asked by
one
176 views
Potassium and nickel are in the same row of the periodic table. What do these elements have in common?
• They have similar
5 answers
asked by
one
464 views
Why do elements that are in the same group of the periodic table share similar properties?
• They are all very reactive with
3 answers
asked by
one
107 views
2H2O2→2H2O +O2
Which statement about the reaction is correct? • The reaction creates new atoms of H2O and O2. • H2O2 has
1 answer
asked by
one
122 views
Which element has the same number of valence electrons as bromine (Br)?
• chlorine (Cl) • potassium (K) • krypton (Kr) •
4 answers
asked by
one
618 views
Which explains how ocean currents affect global climates?
• Water absorbs little thermal energy and releases it all at once.
3 answers
asked by
one
151 views
Which process describes the warm ocean that transfers heat to the air above it?
• radiation • convection • reflection •
4 answers
asked by
one
220 views
Which best explains the relationship between ocean currents and convection currents?
• Convection currents use the Coriolis
3 answers
asked by
one
312 views
In bacteria, binary fission can be modeled in
• four stages. • three stages. • one stage. • two stages.
3 answers
asked by
one
132 views
Select the statement that is true.
• Asexual reproduction is a simpler process than sexual reproduction. • Asexual
1 answer
asked by
one
234 views
In which process does an organism reproduce by splitting into two copies of nearly equal size?
• fragmentation • budding •
1 answer
asked by
one
281 views
Why is it harder to breathe when climbing up a high mountain?
• The air compresses the lungs. • The air is thinner. • The
3 answers
asked by
one
482 views
What happens to molecules in air as altitude increases in the troposphere?
• They move farther apart from each other. • They
3 answers
asked by
one
124 views
Unicellular cells must carry out ___ of life.
• all functions • a few functions • specific functions • a single function
1 answer
asked by
one
282 views
What happens to air pressure and the amount of oxygen as the altitude increases in Earth’s atmosphere?
• Both air pressure
2 answers
asked by
one
152 views
A student claims that viruses are alive because they have genetic material and can reproduce. Is this student’s claim correct?
3 answers
asked by
one
269 views
Which two groups of elements in the periodic table are the most reactive?
• alkali metals and halogens • halogens and noble
1 answer
asked by
one
80 views
How is the function of the Golgi bodies similar to the excretory system?
• They both are the highest level of organization. •
3 answers
asked by
one
203 views
What is dialogue?
• the development of conflict in a story or drama • the words characters say to each other in a story or
3 answers
asked by
one
175 views
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