# Science

## Recent Questions

Science/Math
7. A student measures the mass of a paper clip. The student’s data table is shown below. The accepted value for the paper clip’s mass is 1.14 g. Trial # Mass 1 2.45 g 2 2.40 g 3 2.42 g Which of the following best describes the student’s measurements? (1 point) • The ...

Science
1. Which statement best describes the relationship between science and technology? >>A. The goal of science is to gain an understanding of the natural world, while the goal of technology is to use that understanding to improve people's lives.<< B. The goal of ...

Science/Math
6. A student measures a rectangular room to be 20.0 m Ã— 17.16 m. Which of the numbers below represents the roomâ€™s area with the correct number of significant figures? (1 point) â€¢ 340 m2 â€¢ 343 m2 â€¢ 343.2 m2*** â€¢ 343.20 m2 Am I Correct?

Science, Example PLZ?
Using an example, explain how being able to understand scientific principles and think scientifically can help you solve problems and answer questions in your everyday life. Have Any Example? I Sure Dont Have Any... Can You Give Me An Example Or Two Since Im TOTALLY CLUELESS ...

science
c6h12o6(aq)+6o2(g)->6co2(g)+6h2o(l) ∆h=-2820kj c2h5oh(aq)+3o2(g)->2co2(g)+3h2o(l) ∆h=-1380kj hitunglah reaksi c6h12o6(aq)->2c2h5oh(aq)+2co2(g)

Science
Alice and Marge are studying the properties of matter. The girls cut some silver-colored magnesium sheets into 3-inch long strips and then put one strip each into test tubes: one containing water and one containing acid. Nothing happened when they added the magnesium to the ...

science

science
What step of the scientific method dose it involve clinical trails?

Science
If the buoyancy exerted by water on the stone is 2N.What is the weight of the stone on dipping it in saline water?

science
if a scale of the solar system was built where 1mm equaled 1 mile, could the model be practically built in a city? yes or no I suppose the answer would be no because that is a really small diameter is 742 billion mm I just wanted to check with someone because this seems like a...

Language Arts
1. Which of the following would most likely appear in a feature article, but not in a news article, about Hurricane Katrina? (1 point) A) a map showing meteorological data about the storm, such as total rainfall and top wind speeds B) a sidebar containing a brief interview ...

Science
if an atom has 17 electrons and its mass number is 35, calculate the following: number of protons, atomic number, and number of neutrons. i think there would be: an atomic number of 17, there would be 17 protons, and there would be 18 neutrons. am i correct???

science
A ball of mass 1 kg dropped from 9.8m height , strikes the ground and rebounds to a height of 4.9m .If the time of contact between ball and ground is 0.1s,then find impulse and average force acting on ball.

Mathematics
Raymond took a survey of classmates to determine the favorite subject of the students in his middle school the results of his survey are shown in the table english=9 math=17 science 13 social studies=11 There are 300 students in Raymond's middle school based on his results ...

If you used a peach as a model of an animal cell, what would the fruit represent and why? It would represent the cytoplasm because it would contain the "insides" of the peach.

science
the best explanation of why the Moon appears to change shape throughout the month is •from Earth's perspective, we see varying amounts of the illuminated part of the Moon. • the Moon is revolving around the Earth** • from a bird's eye view, the Moon is always 1/2 lit...

science
how is scientific method applied in healthcare

Science
What bachelors of science,masters degree and ph.d to become archaeologists

Math
Diegos class planning a field tripfor 25 students.They will go to aquarioum and then to science museum. Each ticket for science cost \$2 more than each ticket to aquarium. Lunch for each student is \$5 additional. Write and expression for total cost of trio.Describle the meaning...

environmental science
Suppose a trout eats a smelt and then the human eats the trout. About how many of the original 1000 calories contained in the algae reach the human? 30 calories makes it into the smelt so only about 6 calories make it to the humans who ate the smelt.

science
the weights and scales in the market are checked by Department of standard weights and measures in Nepal once in every two years, why?

Science
The spring constant for the spring is 20 N / M. Calculate the work done in stretching the spring until the extension of the spring is 0.050m.

Science
Is the vector quantity

science
the variation in seasonal temperatures and amount of daylight • decreases as latitude increases • changes most at the equator • stays the same at the North and South Poles • increases as latitude increases

Science
Convert this binary into English. 01001000 01100101 01111001 00101100 00100000 01100111 01101111 00100000 01100110 01110101 01100011 01101011 00100000 01111001 01101111 01110101 01110010 01110011 01100101 01101100 01100110 00101110

science
Which of the following is not a benefit of scientific literacy? A. being able to make personal decisions B. being able to evaluate scientific information C. being able to rely on opinions about science related issues D. being able to take part in science related initiatives

The human heart is an organ that is made up of cells. Not all of the cells that make up the heart are identical, however. What name is given to a group of similar cells that perform a special function and together make up an organ? A) embryo B) organelle C) system D) tissue 38...

Inherited traits are passed down from our parents to us, their offspring, by the information that is coded in our parents' A) RNA. B) antibodies. C) chromosomes. D) plasma. Your gender, whether you are male or female, is determined by the A) X or Y chromosomes, inherited from ...

physics science
a ball thrown vertically upward lands on the thrower's hand 24.5s. find (a) the time taken by the ball to reach its maximum height,(b) the maximum height attained by the ball, and (c) initial velocity of the ball

Science
if you are given a graduated cylinder that has 56ml of water in it and you drop a rock into the cylinder, the water level rises to 62ml. explain how you find the density

SCIENCE
The organization of a cell could be compared to a small city. All of the organelles inside of the cell have a specific purpose that helps the cell to function properly. Which BEST represents the function of the cell wall? A) Policeman B) Sanitation worker C) Grocerystore clerk...

Science
1. An atom that loses or gains electrons is called a(n)____. isotope proton neutron ion*** 2.Which subatomic particles are most involved in chemical bonding? protons electrons*** neutrons isotopes 3.The main types of chemical bonds are___. ionic, covalent, and metallic*** ...

science
what volume of 0.115 M HClO4 solution is needed to neutralize 50.00 ml of o.o875 M NaOH?

Physical Science
1. boyle's law states that the volume of a gas is inversely proportional to its pressure if the? A) temperature and number of particles are consistent** B) temperature reaches absolute zero C) number of particles are doubled D) temperature and number of particles are doubled 2...

Science
3. Kamir and Alexis are studying the properties of water. They conducted a variety of experiments to determine its physical and chemical properties. Of the tests the students conducted, which one illustrates a chemical property of water? a. Salt dissolves in water b. Oil and ...

Science
2. Two liquids are poured into two cups. Cup A contains a colorless, odorless liquid. Cup B contains a colorless liquid with a strong odor. An ice cube floats in Cup A but sinks in Cup B. When heated, the liquid in Cup B boils at a much lower temperature than the liquid in Cup...

SCIENCE
In a reaction 6.56g of Zinc reacted with excess dilute Hydrochloric acid Calculate the volume of hydrogen evolved at STP

Science help
Which of the following is NOT a way to test your hypothesis? A.) observe the natural world. B.) make a guess.*** C.) perform an experiment D.) make and use a model *** Means I chose this.

science
describe the relationship among energy absorption, heat energy, and temperature

Science
Please help Me With These Questions 1.what is one difference between the scientific theory and scientific law 2. what are two similarities a scientific theory and scientific law 3. Sam noticed every time she rolled a ball on a flat surface it did not stop unless she applied a ...

Science
The density of a loaf of bread with a mass of 500 g and a volume of 2500 cm3.

Science
Prove that the maximum horizontal range is four times the maximum height attend by a projectile when fire at an inclination so as to have maximum horizontal range

science
What is the cell structure involved photosynthesis

Science
I need to know how a refrigerator works to come up with an example. Please keep it simple and easy to understand. or an example explaining how being able to understand scientific principles and think scientifically can help you solve problems and answer questions in your ...

Science
I am trying to come up with an example but i need to know how a refrigerator works. Please keep it simple. or example explaining how being able to understand scientific principles and think scientifically can help you solve problems and answer questions in your everyday life?

Science
why would a DNA structure in which each base type could form hydrogen bonds with any of the other 3 base types not produce a molecule that could be replicated easily?.

Science
The formula wt of h2so4 is98bthe wt of the acid in 400ml of 0.1M solution is

Science
What is the relationship between energy and work?

Science
How do you identify energy may be dissipated in such an energy conversion?

science
How is this equation balanced Fe2o3+co

English
I wrote this sentences. Could you check them. Thanks 1. If you were interested, you could take another course. 2. If I were you, I’d study Norse tales. 3. If he really wanted to go into science, he would take biology and chemistry. 4. I wouldn’t have suggested he take ...

Data Science
I've been accepted into a General Physics degree programme in my country.If I'm willing to start my career as a data scientist,what subjects should I study at the university? Would the knowledge of programming languages will be an extra qualification or is that compulsory? I ...

Science
Can you see organelles of plants using a simple microscope? If yes, what is it?

science
SnCl2+HgCl2--->Hg2Cl2+SnCl4

Science
Honestly reporting experimental findings is an example of using good? I really need help please

SCIENCE
HOW TO PREPARE 60PPM OF POTASSIUM DICHROMATE

science
How should I prepare for a field study and what should I do if there's an accident? I just need help answering the last part because I cant seem to find a answer anywhere.

Science
Which of the following describes a feed back in the oven? A Setting the temperature B Burning gas releases heat C a thermostat monitors the temperature and increases the gas flow when gas falls to low D a cake is baked. My awnser so far is A.

Earth Science
Which aquartic biome would cypress, cedar, and dogwood trees, and submerged floating plants ne located? Lakes and Ponds Streams and RIvers Swamps Freshwater Marsh Saltwater Marsh Intertidal Zone

Science
2. Which of the following describes a relationship between science and society? A: Scientific discoveries can impact human life; therefore, society must remain scientifically literate. B: Scientific discoveries rarely impact human life; therefore, it is not necessary for ...

Science
I'm doing an assignment and one of the questions is explain the reaction using the Big Idea of Energy. I don't know how to answer it please help!

science
I'm doing an assignment on burning magnesium and one of the questions is explain the reaction using the Big Idea of Energy. What does this mean?

science
what is the defenition of benifit SCIENCE wise. i need answers quickly!!!

Science
Can someone help me come up with a way the lithosphere and cryosphere interacts? I already have permafrost.

Science
What resources should a scientist use to research water pollution?

Science
PLEASE DO NOT THINK I AM CHEATING AND ASKING FOR ANSWERS. DO NOT LECTURE ME, I AM SIMPLY ASKING WHAT IN THE HELL THIS MEANS: Collecting and Analyzing Data There are two types of observations: qualitative and quantitative. Qualitative observations use words to describe what is ...

Earth space science
During which step in the Can Crush Lab did water vapor condense inside the can? A. The can was filled nearly to the top with water. B. The can was placed on the hot stove burner for several minutes. C. The can was removed from the hot stove burner. D. The can was placed upside...

Science
A researcher determined the amount of electrical energy was entering a lamp and the amount of light energy given off my the lamp. The amount of light energy was less than the amount of electrical energy. How can this be explained?

Physical Science, Science
The barometric pressure in Breckenridge, Colorado (elevation 9600 feet) is 580 mm Hg. How many atmospheres is this? How do we find the answer for this?

science
20 gm of an acid furnishes 0.5 mole or HNO3+ iONS in its aq solution .the value of 1 eqyivalent if the acid will be

Science
For the reaction IO3� + 5I� + 6H+ 3I2 + 3H2O the rate of disappearance of I� at a particular time and concentration is 5.0 x 10-3 M s-1. What is the rate of appearance of I2

science
If you had to study something that you could not see, would that motivate or frustrate you? Explain your reasoning.

science
Seeing is believing. Do you agree or disagree with the statement? Give an example of phase changes to support your view. please help

Science
What volume of co2 has is produced when 20gm of 20/100 pure caco3 is completely heated

science
Ammonia, NH3, can be made by reacting nitrogen and hydrogen and the equation is N2 + 3H2 --> 2NH3 How many moles of NH3 can be made if 12 moles of H2 react with enough N2? mol

science

science
An older brother pours all the water out of a small cup on his little brother's head. Later, the little brother pours all the water out of a large pot on the older brother's head. Which of the answer choices correctly analyzes the pressure exerted by the water in the scenario...

science
Which of the answer choices is a true statement about the properties of an enclosed gas? (Select all that apply) if a gas pressure remains constant, then increasing the temperature of a gas will increase its volume if the gas temperature remains constant, then increasing the ...

science
The knowledge produced by science builds on old ideas and is constantly changing. State whether you agree or disagree with this statement. Explain why please help

science
What causes pollution and increases global warming?

science
which of the following reasons best explains why scientists need a standard measurement system A)scientist would not be able to communicate at all without one B)if they did not use one data could be misinterpreted (My answer) C)experiments could not be completed without one D)...

Science
A car travels 4km in 3 minutes.find the speed of car in cm-1

science-chemistry
Predict and draw the structure of the product of the reaction of the following substrates with the given reducing agent. 2-hexanone mixed with hexanoic acid with (i) NaBH4 (ii) LiAlH4

science
A coach tells his little league players that hitting a 0.275 batting average, within 7% percentage error, means that they had a really great season. Seven year old Tommy ended the season hitting a 0.258 batting average. According to his coach, did he have a great season?

science
In which of the following phase transitions is energy released? liquid to solid solid to gas liquid to gas solid to liquid please help

science
Molten lava coming out of a Hawaiian volcano cools down and forms rock. Which statement best describes the flow of energy in the scenario?  energy moves from lava to the surroundings energy moves from the surroundings to the lava energy stays within the surroundings energy ...

science
Molten lava coming out of a Hawaiian volcano cools down and forms rock. Which statement best describes the flow of energy in the scenario?  energy moves from lava to the surroundings energy moves from the surroundings to the lava energy stays within the surroundings energy ...

science
A scoop of ice cream is placed on top of a warm piece of pie in a bowl. Which statements about the scenario are true? (Select all that apply.) the pies energy will destroy a portion of the ice creams energy the overall amount of energy in the bowl will neither increase nor ...

science
a hydrauli press has a ram of 30 cm diameter and plunger of 4.5cm diameter. find the the weight lifted by the hydraulic press when the force applied at the plunger is 500N

Science
I have two questions and I have answers for them and I don't know if there right or not. The ones that have stars by the answers is the answers I picked. 1. Complete this sentence. If volume remains the same while the mass of a substance ________, the density of the substance ...

Physical Science
How will you prepare a laboratory procedure to verify the validity of the hypothesis? Give example.

science
Which statements best describe how the properties of gases and plasmas differ? (Select all that apply). The particles of plasmas have a higher kinetic energy than the particles of gases. Gas particles are charged while plasma particles are uncharged. Plasma particles are ...

science
liquid water has a constant density. Do you agree or disagree with this statement? Why or why not? Be sure to support your argument by using what you have learned about the states and motion of matter. please help

science
liquid water has a constant density. Do you agree or disagree with this statement? Why or why not? Be sure to support your argument by using what you have learned about the states and motion of matter.

SCIENCE
why does a fly experience greater acceleration when it collids with a fast moving bus

Science
Paul road his bike from the bottom of his street to his friend’s house at the top of the hill on his street. He knew his PE was 5,000 J and ME was 25,000 J but wanted to find out his KE. What is Paul’s KE energy on his bike ride to his friend’s house? Ans= 30,000?

science
List your own example of turning an observation into a hypothesis. Be sure to list all five steps: observation, explanation, test (independent variable), prediction (dependent variable), and hypothesis. please help

science
Observation The trash smells. Explanation Decaying biological material causes the trash to smell. Test (independent variable) Add food scraps to one trash can along with other materials, such as plastic, cardboard, paper, and tin. To a second trash can, add only non-food ...

Honors science
a student wanted to investigate whether or not the temperature of the water would affect the solubility of sugar she had three glasses of water each with 200 ml of water in them one was at 10 c the second a 25c and the third one was at 40 c she found that the warmer water ...

Science Help Practice
Calculate the speed of an 90,000 kg airplane with a kinetic energy of one billion Joules. What is the mass of a car that has a kinetic energy if 4,320,000 J moving at 23 m/s? My answer to number 1= 149.07 second one- not sure. I looked up the internet for formulas on finding ...