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October 22, 2014

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Recent Science Questions

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science
3. Which of the following is an example of inbreeding? A farmer chooses the cows in his or her herd that produce the most milk and breeds only those cows. A farmer chooses the cows in his or her herd that produce the most milk and breeds them with cows that get sick less often...
Wednesday, March 5, 2014 at 8:54pm

Science- Check Please :)
I only have a couple questions left but I want to be sure that my answers are correct so can someone please help me by checking my answers and if they are wrong can someone please let me know? Thank you! Question Number 1: A freshwater marsh is a type of ecosystem. Grasses, ...
Wednesday, March 5, 2014 at 8:17pm

science( Please Check My Answer)
Question: One of the largest cypress trees in Florida has a tree trunk diameter of about 3.5 m. What is the source of MOST of the carbon in the cypress tree's trunk? Answer choices: A. The tree created carbon during photosynthesis. B. The tree used carbon that it had ...
Wednesday, March 5, 2014 at 7:46pm

Science
Bacteria are classified according to three basic shapes. Name them and give the scientific. name for the shape. 1. Round pairs - Diplococcus 2. Rod shaped - Bacilli 3. ?? I need another one. Please help me.
Wednesday, March 5, 2014 at 7:09pm

Science
Bacteria are classified into 3 basic shapes, name them and give the scientific name. 1. Round pairs - Diplococcus 2. Rod shaped - Bacilli I got 2 can someone help me with one more?
Wednesday, March 5, 2014 at 4:51pm

SCIENCE
WHAT ORGAN MAKES ACID THAT U VOMIT AND CAN BURN THROUGH AN CARPET
Wednesday, March 5, 2014 at 4:21pm

Science
Bacteria are classified into three basic shapes. Name them and give the scientific name for the shape. 1. Diplococcus - Round and paired. 2. Bacilli - Rod shaped. 3. I don't know which else shape they would be classified into.
Wednesday, March 5, 2014 at 4:19pm

Science
If the melting point of a substance is -39C, has the substance melted at 20C?
Wednesday, March 5, 2014 at 4:12pm

Science
What is true about X-rays and microwaves? (1 point) a. X-rays have greater speed than microwaves. b. X-rays have greater amplitude than microwaves. c. X-rays have greater frequency than microwaves. d. X-rays have greater wavelength than microwaves.
Wednesday, March 5, 2014 at 4:07pm

Science
2. Which waves have the longest wavelength and lowest energy on the electromagnetic spectrum? (1 point) a. X-rays b. infrared c. radio waves d. gamma rays
Wednesday, March 5, 2014 at 2:04pm

Science
1. Compare the two light waves above. Which wave would produce the brightest light and which wave would have the least energy? (1 point) a. wave A; wave A b. wave A; wave B c. wave B; wave A d. wave B; wave B Is it C?
Wednesday, March 5, 2014 at 1:39pm

science(check answers)
can someone check my answer thanks ! 2.The ability to do work or cause change is called A.velocity. B.energy.(I PICK B.) C.transfer. D.friction. 3.Which type of energy is demonstrated by a person jogging? A.electrical energy B.nuclear energy C.electromagnetic energy D.kinetic ...
Wednesday, March 5, 2014 at 1:13pm

Earth, Space and Science
8. A geologist is studying a section of sedimentary rock layers that have been newly exposed by a landslide. Based on what principle, the geologist would assume that the layers increased in age as they looked at them from top to bottom. A. unitarianism B. Principle of ...
Wednesday, March 5, 2014 at 12:11pm

6th grade science
A couple has just learned that their daughter has hemophilia. They already have a son who does not have the disease. What are the genotypes of the couple? I don't know how to do this please help!
Wednesday, March 5, 2014 at 12:09pm

Science HW - - - check my answers?
1. Compare the two light waves above. Which wave would produce the brightest light and which wave would have the least energy? a. wave A; wave A b. wave A; wave B c. wave B; wave A d. wave B; wave B 2. Which waves have the longest wavelength and lowest energy on the ...
Wednesday, March 5, 2014 at 9:38am

science
What is matter
Wednesday, March 5, 2014 at 9:11am

Science
1. Compare the two light waves above. Which wave would produce the brightest light and which wave would have the least energy? a. wave A; wave A b. wave A; wave B c. wave B; wave A d. wave B; wave B 2. Which waves have the longest wavelength and lowest energy on the ...
Wednesday, March 5, 2014 at 7:49am

Science
Who stated the three laws of motion?
Wednesday, March 5, 2014 at 6:05am

science
what is mitosis?
Wednesday, March 5, 2014 at 3:37am

science
What type of prac do you think you need to use a filter funnel and filter paper. please help quickly
Wednesday, March 5, 2014 at 1:31am

science
Whta is newtons first law?
Wednesday, March 5, 2014 at 12:04am

Science... plz help~!
A basketball momentarily changes shape as it bounces off the floor. This is due to balanced forces acting on the ball. (1 point) True*** False A ball slowing down as it rolls across a carpet is an example of (1 point) Balanced force Friction*** Inertia Zero net force If the ...
Tuesday, March 4, 2014 at 10:29pm

Science~!
A basketball momentarily changes shape as it bounces off the floor. This is due to balanced forces acting on the ball. (1 point) True*** False A ball slowing down as it rolls across a carpet is an example of (1 point) Balanced force Friction*** Inertia Zero net force If the ...
Tuesday, March 4, 2014 at 9:26pm

Science
How was Ama Dablam formed?
Tuesday, March 4, 2014 at 7:44pm

Math
Mr. White notices that of the 30 students in his science class, 18 are using yellow pencils, 6 are using blue pencils, 4 are using erasable ink pens, and 2 are using mechanical pencils. If his class is representative of the student body, and there are 600 students in the ...
Tuesday, March 4, 2014 at 5:03pm

science HELP ASAP!!!!!!!
1. in which biome would you find the main types of plants life to be grasses and nonwoody plants? (1 point) 2. Which of the following determines the type of biome classification that will be made for a particular region? (1 point) 3. which of the following do rainforest and ...
Tuesday, March 4, 2014 at 2:26pm

Science
1. What would happen to an object if the force of gravity on Earth was decreased by half? (1 point) Its mass would decrease. Its weight would decrease.* Its density would decrease. Its volume would decrease. 2. Which of the following represents a heterogeneous mixture? (1 ...
Tuesday, March 4, 2014 at 12:48pm

Science
Which statement best summarizes the world’s reaction to stratospheric ozone depletion discussed in Chapter 7.4 of your text?
Tuesday, March 4, 2014 at 12:05pm

Science
1.   What would happen to an object if the force of gravity on Earth was decreased by half?  (1 point) Its mass would decrease. Its weight would decrease.* Its density would decrease. Its volume would decrease. 2.   Which of the following ...
Tuesday, March 4, 2014 at 11:53am

science
which detail helps to predict stormy weather? a). Dewpoint: 57F./ 14c. b). Barometer:29.99 rising. c). Hi:65F, d).Heat index: NA. My answer is ( b )
Tuesday, March 4, 2014 at 6:55am

Science
A tug is capable of pulling a ship with a force of 100 KN. If two such tugs are pulling on one ship, they can produce any force ranging from a minimum of 0 KN to maximum of 200 KN. Give a detailed explanation of how this is possible. Use diagrams to support your result.
Tuesday, March 4, 2014 at 1:48am

Science- Brady , Ms. Sue , Damon
How would playing a game of soccer, baseball, or basketball be different if inertia didn't exist?
Monday, March 3, 2014 at 8:32pm

science
Fill in the blank? The acceleration of an object is equal to the net _____ acting on the object divided by the objects____?
Monday, March 3, 2014 at 8:10pm

Inertia Science
How would playing a game of soccer, baseball, or basketball be different if inertia didn't exist?
Monday, March 3, 2014 at 8:04pm

Science
What types of experiments may be helpful to determine how to keep E. Coli from spreading quickly?
Monday, March 3, 2014 at 7:55pm

Science- Brady, 2 more!
#1. Which statement is true about the image below? 7 N -> |rectangle| <- 7 N •The forces acting on the rectangle are balanced. (?CORRECT?, MY ANSWER) •The forces acting on the rectangle are unbalanced. •The forces acting on the rectangle are unequal. •...
Monday, March 3, 2014 at 7:51pm

science
What universal force is primarily responsible for keeping satellite in orbit around earth? Answers are electromagnetic force, strong nuclear force, gravitational force, weak nuclear force. Thank you
Monday, March 3, 2014 at 7:50pm

Science
I can’t put the diagram (picture) here so... I type down: Hope it help! left side there is an arrow pointing to the square, it measures 5 N (big) In the middle (between the arrows) there is a square Right side there is an arrow pointing to the square, it measures 3 N (...
Monday, March 3, 2014 at 7:16pm

Science
How would renewable energy sources be used in a home?
Monday, March 3, 2014 at 6:36pm

Science
What types of experiments may be helpful to determine how to keep E. Coli from spreading quickly?
Monday, March 3, 2014 at 6:15pm

Science -Check Answers-
# 2. When __________ forces act on an object, they cause the object to move. •Balanced •Unbalanced (?CORRECT?, MY ANSWER) •Friction •Net # 4. Which of the following terms BEST describes the scenario below? A meteor moving through outer space continues to ...
Monday, March 3, 2014 at 5:57pm

Science
What types of experiment may be helpful to determine how to keep E. Coli from spreading quickly?
Monday, March 3, 2014 at 5:49pm

Science
Which step in the nitrogen cycle is accelerated at the beginning of the eutrophication process? A. denitrification B. nitrogen fixation C. producer uptake of nitrogen D. consumer decomposition
Monday, March 3, 2014 at 3:12pm

Science
1. How does groundwater cause erosion and deposition? a. When acidic water soaks into the ground, water dissolves limestone, resulting in the formation of caves. *** b. When a river overflows, it moves downhill, resulting in the formation of caves. c. When it rains, water ...
Monday, March 3, 2014 at 2:46pm

Science
A man with a mass of 80KG stands on a bathroom scale on the floor of a lift. Determine the reading of the scale if the lift is at freefall.
Monday, March 3, 2014 at 2:38pm

Science
A cat is walking down a sidewalk and spots a dog in a nearby yard. The cat strats to run in the opposite direction and then quickly climbs a tree. Which of the the following changes most accurately describes the movement of the cat? speed distance velocity****** motion
Monday, March 3, 2014 at 2:27pm

science
A force that keeps an object moving in a circle is called?thank you
Monday, March 3, 2014 at 2:23pm

science
Fill in the blanks? The tendency of an object to resist any change in its motion is called what?
Monday, March 3, 2014 at 2:13pm

science
A new moon is discovered orbiting Neptune with an orbital speed of 9.3 ´ 10 m/s. Neptune’s mass is 1.0 ´ 10 kg. What is the radius of the new moon’s orbit? What is the orbital period? Assume that the orbit is circular. (G = 6.673 ´ 10 N·m/kg)
Monday, March 3, 2014 at 11:19am

science HELP ASAP!!!!!!!
12. How do the cherries on a cherry tree help the plant reproduce? (1 point) Cherries develop into seeds, which are young, undeveloped plants. Animals eat the cherries, which helps disperse the plant’s seeds. Pollen inside the cherries fertilizes ovules, which produce ...
Monday, March 3, 2014 at 11:07am

Science
What is the origin of volcanism?
Monday, March 3, 2014 at 4:05am

Science please help
Draw Bohr diagrams of a magnesium atom bonding with fluorine atoms. Draw atoms then electron transfer and finally the ions that form. What type of bonding occurs? Draw Bohr diagrams of 2 hyrdogen atoms bonding with an oxygen atom by sharing electrons to form a water molecule. ...
Monday, March 3, 2014 at 12:36am

Science to: DrBob222
1. Explain why the melting points of ionic compounds and molecular compounds differ? 2. A.) What laboratory procedure allows you to test a compound is ionic or molecular? b.) what results would you expect? 3. A.) What do we call the smallest particle of an element? b.) what ...
Sunday, March 2, 2014 at 10:09pm

College Chemistry - Science
In an acid-base experiment at 25.0°C, a sodium hydroxide solution was standardized against KHP. The average value for the concentration of the sodium hydroxide solution was calculated to be 0.0125 M. This solution was used to titrate the phosphoric acid present in coke. ...
Sunday, March 2, 2014 at 9:25pm

Science help
For each of the following what type of smallest particle would exist? explain your reasoning? a.) strontium B.) CaCl2 C.) CCl4 D.) SO2 E.) helium F.) bromine G.) MgO Thanks :):):):)
Sunday, March 2, 2014 at 8:49pm

Science urgent
1. Explain why the melting points of ionic compounds and molecular compounds differ? 2. A.) What laboratory procedure allows you to test a compound is ionic or molecular? b.) what results would you expect? 3. A.) What do we call the smallest particle of an element? b.) what do...
Sunday, March 2, 2014 at 8:47pm

College Chemistry - Science
At room temperature (25°C), 45 mL of a 0.002 M acid solution reacts with 30 mL of a NaOH (aq) solution (pH = 11.95), determine (through calculations) whether the acid is phosphoric acid (H3PO4), acetic acid (CH3COOH), or carbonic acid (H2CO3).
Sunday, March 2, 2014 at 7:54pm

Chemistry - Science
In an acid-base experiment at 25.0°C, a sodium hydroxide solution was standardized against KHP. The average value for the concentration of the sodium hydroxide solution was calculated to be 0.0125 M. This solution was used to titrate the phosphoric acid present in coke. ...
Sunday, March 2, 2014 at 7:49pm

Science
A gas has a volume of V1 = 550 mL. If the temperature is held constant, what volume would the gas occupy if P2 = 22 P1? Answer in units of mL
Sunday, March 2, 2014 at 6:00pm

Science
1 cup has 6/4 of water in it cup 2 has half of cup 1. What is cup 2?
Sunday, March 2, 2014 at 3:36pm

Science
In an effort to reduce global warming, individuals and companies have been buying __________________ to fund restorative projects Can someone please help me I am thinking Carbon Filters but i think that might be wrong
Sunday, March 2, 2014 at 3:17pm

Science
which property of nutrients shows that they are a type of matter? A. Nutrients are colorful B.Nutrients can do work C. Nutrients contain energy D. Nutrients have mass
Sunday, March 2, 2014 at 2:58pm

Physical Science
The air temperature on a certain day is 86 degrees F A)Convert to Celsius? B) Calculate the sound of speed in air? C)When a 653Hz tornado siren is turned on, the sound takes 2.3s to reach an observer. How far is the observer from the main siren, and what is the wavelength of ...
Sunday, March 2, 2014 at 2:34pm

Physical Science
An ultrasonic wave in water is a compression wave that travels at 1,400 m/s A) An ultrasonic wave from a ship travels to the bottom of a lake and back in 0.16s. How deep is it at this point? B) If an ultrasonic wave is emitted in the ocean where the ocean's depth is 3.5km...
Sunday, March 2, 2014 at 2:31pm

science
A copper calorimeter of mass 150g, was half filled with water of mass 300g and temperature 0 degrees celcius. 5g of ice at 0 degrees celcius was added to the content, later some quanity of steam was passed into the mixture and the temperature rose by 20 degrees celcius. ...
Sunday, March 2, 2014 at 12:44pm

science
An airplane pilot sets a compass course due west and maintains an airspeed of 225km/h . After flying for a time of 0.520h , she finds herself over a town a distance 122km west and a distance 15km south of her starting point. Part A Find the magnitude of the wind velocity. v = ...
Sunday, March 2, 2014 at 6:23am

Science
The slevator starts at 1st floor and accelerated 1m/s^2 for 6 seconds and continues at a constant velocity for 12 seconds more and is then stopped in 4 seconds with constant deceleration. If the floors are 3 meters apart at what floor does the elevator stops?
Sunday, March 2, 2014 at 5:51am

science
A man stands on the roof of a building of height 15.8m and throws a rock with a velocity of magnitude 25.2m/s at an angle of 32.7∘ above the horizontal. You can ignore air resistance. Part A Calculate the maximum height above the roof reached by the rock. y = 9....
Sunday, March 2, 2014 at 5:20am

Science
Why do you think the human brain has more convolutions than a pig brain?
Saturday, March 1, 2014 at 10:36pm

Science
In order to prevent a mass erosion event, like we experienced in 1930's Dust Bowl event, which of the following should farmers do? A.) remove worms, ants, and other organisms that live in the soil B.) Keep the land irrigated C.) remove native grasses D. plant the same crop...
Saturday, March 1, 2014 at 10:33pm

Science
What is a mountain's origin?
Saturday, March 1, 2014 at 7:16pm

Science
What would happen if you moved the bar magnets further away from the armature when the St.Louis motor was running? Please help! I have been searching for r The answer for days and can't find it anywhere Thank you
Saturday, March 1, 2014 at 6:36pm

Science
What Would Happen If We Hunted Deer Population Use Three Vocab Words HELP Ms.sue :) btw this is about the food chain
Saturday, March 1, 2014 at 2:41pm

Science
Why are generators not allowed in Niagara Falls? I am assuming that it has something to do with environment but I can't find the exact answer anywhere ?
Saturday, March 1, 2014 at 12:26pm

science
unscramble rorpsfgnloaedeasi
Saturday, March 1, 2014 at 11:39am

Science
A long jumper leaves the ground at an angle of 20 degrees above horizontal and at a speed of 11m/s..how far does he jump?
Saturday, March 1, 2014 at 3:56am

science
2. when the speakers refers to pausing " enjoyed the view / of the trees and the folwers," he really is about ( 1point ) A .looking down at the view from the mountain b. giving up the struggle to just focus on his past successes c. begin inspired by the beauty of ...
Saturday, March 1, 2014 at 12:09am

Science
What three things can be done to increase the speed and power of a St.Louis electric motor?
Friday, February 28, 2014 at 11:27pm

science
2. which of the following happens when a low - mass star runs out of fuel ? choose all that apply . ( 3points ) A ITS CORE BECOMES A WHITE DWARF B ITS OUTER LAYERS FORM a nebula , or vast cloud of gas and dust c its outer layers expand , and the star becomes a red giant d. gas...
Friday, February 28, 2014 at 10:51pm

science
.What happens to the endometrial tissue if the egg does not get fertilized ?
Friday, February 28, 2014 at 10:44pm

science
3.what hormone stimulates the thickening of the endometrial tissue? 4.Describes what occurs to the follicle around day 13 and 14 ? what is this process called ?
Friday, February 28, 2014 at 10:44pm

science
1.Approximately how long (in days)is the female reproductive cycle?? Describe the structure that is 2.illustrated at the bottom of the diagram .What is it called ?
Friday, February 28, 2014 at 10:43pm

science
Explain the difference between the ovarian cycle and the menstrual cycle ??
Friday, February 28, 2014 at 10:34pm

science
4. a scientist exams a sample of an object from the solar system . there is evidence that the object included ice . the sample most likely comes from a(n) ( 1point ) a . Asteroid b. comet c dwarf planet d meteroroid
Friday, February 28, 2014 at 9:34pm

science
Which statement is true regarding the cost of climate change adaptation discussed in the text? (Points : 1
Friday, February 28, 2014 at 9:19pm

Science
2. Which step in the nitrogen cycle is accelerated at the beginning of the eutrophication process? (1 point) A) denitrification B) nitrogen fixation C) producer uptake of nitrogen*** D) consumer decomposition Am I correct?
Friday, February 28, 2014 at 7:39pm

Science
A scientist is trying to determine the identity of an element. It is highly reactive in water and forms an ionic bond with chlorine. It is also very shiny. The element is most likely 1. from group 17 2. from group 1 3. from group 15 4. a noble gas 3?
Friday, February 28, 2014 at 2:02pm

Science
To form an oxygen molecule (O2), two oxygen atoms share two pairs of electrons. What kind of bond is shown by this? Select all which apply. Ionic Bond Single Bond Double Bond Covalent Bond Triple Bond C and D?
Friday, February 28, 2014 at 1:38pm

Science
What is true about the element francium (Fr, atomic number 87)? Choose all that apply. A) It has seven valence electrons. B) It is likely to form ionic bonds. C) It is in Period 7. D) It is nonmetal. E) It is a metal. I think it is B, C, and E?
Friday, February 28, 2014 at 12:36pm

Science please help
what do we mean when we say that atoms bond? What particles in an atom are responsible for bonding? Table sugar or sucrose is a compound that has the chemical formula C12 H22 and O11 would another chemical made of the same elements still be considered to be sucrose? why or why...
Friday, February 28, 2014 at 10:25am

science
the astronauts can live for long periods of time in a space station? my answers is yes.
Friday, February 28, 2014 at 7:53am

SCIENCE
Will someone please help me find information on facial reconstruction?
Friday, February 28, 2014 at 7:42am

Science
What would happen to an electric motor if the direction of the electric current in the armature did not change directions? Explain. I have read my textbook and googled it and I dint understand what would happen. Please help. Thank you
Friday, February 28, 2014 at 12:52am

Science 3 quick questions
what do we mean when we say that atoms bond? What particles in an atom are responsible for bonding? Table sugar or sucrose is a compound that has the chemical formula C12 H22 and O11 would another chemical made of the same elements still be considered to be sucrose? why or why...
Friday, February 28, 2014 at 12:45am

Science
1. Which of these statements is TRUE? A.The nucleus gives the cell its shape. B. Chloroplasts make food for animal cells. C. Animal cells have many different shapes. D. A plant cell can become a blood cell. C
Thursday, February 27, 2014 at 10:16pm

Science
1. Which of these is NOT made of cells? a. a rock b. an ant c. moss d. a piece of wood A
Thursday, February 27, 2014 at 9:56pm

science
why did most scientists reject wegener's theory?
Thursday, February 27, 2014 at 8:33pm

science
Explain how the concentration of hydronium ions and hydroxide ions are related to pH.
Thursday, February 27, 2014 at 7:21pm

Science
#1. Kilometers per hour describes the speed of an object. ture false **** #2. Which of the following reference points would allow you to observe the speed of a car that you are traveling in? a) an airplane flying across the sky b) a car traveling next to you at the same speed ...
Thursday, February 27, 2014 at 7:15pm

Science - Please Check my Answer 2
My problem: One runner in a relay race has a 1.50 s lead and is running at a constant speed of 3.25 m/s. The runner has 30.0 m to run before reaching the end of the track. A second runner moves in the same direction as the leader. What constant speed must the second runner ...
Thursday, February 27, 2014 at 5:59pm

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