Homework Help: Science

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Recent Homework Questions About Science

science
Compound C (MW = 550) is provided at a concentration of 25g/100mL. 1mL is taken and compound D is to be added (MW = 1025, concentration = 75mM) to give a final ratio of compound C:D of 4:1. What volume of compound D is to be added?
Friday, December 9, 2011 at 4:17pm

science
Compound A has a MW of 283. 0.423g of Compound A is dissolved in 13.5mL of water and 1mL of the solution added to 5mL of water to produce “solution A”. What is the concentration of Compound A in “solution A”?
Friday, December 9, 2011 at 4:16pm

science
Compound B is provided as a solution and has a specific gravity of 0.65 (Specific gravity is the weight in grams per mL of solution) and is known to be 90% pure (each gram of compound B solution only contains 90% Compound B and 10% of degradation products). 4.5 mL of Compound...
Friday, December 9, 2011 at 4:16pm

science
Compound A is provided as a 500mM solution. If 12.5 mL is taken and added to 12.5mL of water, how many moles (or millimoles / micromoles) are there per 0.1mL of the diluted solution?
Friday, December 9, 2011 at 4:16pm

science
2mL of a 10M solution of Compound A is taken and 48mL added. 1mL of this solution is then taken and dried to dryness before being re-dissolved in 0.1mL. What is the concentration of the 0.1mL solution?
Friday, December 9, 2011 at 4:15pm

science
NaOH has a MW of 40. A 0.12M solution is made by adding how much NaOH to 100mL of water?
Friday, December 9, 2011 at 4:14pm

Science/Physics
Your car has been setting out in the hot summer sun all day. The metal hood, the glass windshield, and the fabric upholstry are all at 180 degrees farenheit. If you touch the hood with your hand it could be burned, if you touch the windshield it will be very hot, if you touch ...
Friday, December 9, 2011 at 3:45pm

science
Why are proteins necessary in your body? What are polymers that build up to make proteins?
Friday, December 9, 2011 at 2:16pm

6th grade Science
Please help me with the questions? 1) How do you respond to some stimuli in your environment? The examples I wrote are: If I am hungry, I will eat food. If I am cold, then I will put on a jacket? 2) What does the fur of a bear have to do with homeostatis? I wrote that the fur ...
Friday, December 9, 2011 at 12:01pm

SCIENCE
WHAT ARE THREE PARTS OF STRANDS
Friday, December 9, 2011 at 10:30am

English
Could you please help me check these few sentences? Thank you. 1) I'm happy our head science teacher is so enthusiastic to carry out a project with your and the French school. 2) I read you both agreed to hold the meeting on 27 January and that you are going to provide for...
Friday, December 9, 2011 at 3:18am

science
Observed under magenta colored lights, you see a crayon that appears red. What colors could the crayon be when observed under ordinary white lights? _____cyan ____magenta ____green ____yellow ____red ___black ___white ____blue
Thursday, December 8, 2011 at 9:46pm

science
caleb is holding a metal block in his hand.what could he do to decrease the thermal energy?
Thursday, December 8, 2011 at 8:32pm

Science
Was Daniel Bernoulli for the atomic theory or against it and explain why?
Thursday, December 8, 2011 at 7:00pm

Science 7R (help!!!!)
I have this worksheet for science tonight for homework and I really need help. The title of it is How Living Things Are Organzied. 1. A smallest unit of stucture and function in a living thing is called a(n) ________________________________________...
Thursday, December 8, 2011 at 6:39pm

Science
The amount of space something occupies is its volume. Volume can be measured using a A. triple beam balance B. graduated cylinder C. spring scale D. meter stick I think its B.
Thursday, December 8, 2011 at 6:09pm

Science
Describe a solution,suspension, and colloid
Thursday, December 8, 2011 at 5:57pm

Science
Which landform was most likely formed by deposition? A. cave B. cliff C. beach D. arch C. beach?
Thursday, December 8, 2011 at 5:55pm

Science
Which of the following resources come from the remains of dinosaurs and plants? A. trees B. water C. oxygen D. oil
Thursday, December 8, 2011 at 5:27pm

science
Can suger prolong the life of cut flowers? Am i correct?
Thursday, December 8, 2011 at 5:23pm

Science
Peaks are not as sharp on the Appalachian Mountains as they are on the Rocky Mountains. What might have cause this difference in the peaks over time? A. erosion B. weathering C. evaporation D. sedimentation
Thursday, December 8, 2011 at 5:02pm

Science
Which characteristic tells how the Earth and the moon are alike? A. Both have similar weath conditions B. Both rotate around the Sun C. Both receive light from the Sun D. Both are the same size I think its C
Thursday, December 8, 2011 at 4:36pm

science
how does color effect evaporation?
Thursday, December 8, 2011 at 3:59pm

Science
An escalator is moving downward with a uniform speed of u. A man of mass m is running upward on it at a uniform speed of v. If the height of the escalator is h, the work done by the man in going up the escalator is?
Thursday, December 8, 2011 at 2:42pm

science
Is melting ice a physical or chemical change? I think it is a physical change. Am I correct?
Thursday, December 8, 2011 at 1:08pm

physical science
One of Saturn's moons has an orbital distance of 1.87 x 108 m. The mean orbital period of this moon is approximately 23 hours. Use this information to estimate a mass for the planet Saturn.
Thursday, December 8, 2011 at 1:08pm

SCIENCE-PLS HELP!
What are a few(4~5) made-made forces?
Thursday, December 8, 2011 at 10:35am

Science
What advice do you have for astronomers?
Thursday, December 8, 2011 at 7:08am

Science
Nacl2+s o4\2na,hcl = ?
Thursday, December 8, 2011 at 6:24am

science
My question is ' what do you think if we lived in a world without any plants?' I have tried typing this in a search engine and it came up with nothing. Please could you help give me a website. Thank you.
Thursday, December 8, 2011 at 5:41am

science
A 2 kg object moving with a velocity of +5 m/s collides with a 4 kg object that is initially at rest. After the collision, the 2 kg object moves with a velocity of -1 m/s. (a) Find the velocity of the 4 kg object after the collision. (b) Find the energy lost in the collision. ...
Thursday, December 8, 2011 at 12:11am

Science
What factors affect weather and climate? I think it's the sun, the water cycle, the atmosphere, and the ocean. The Sun is the most important because you need the sun for water cycle You need the ocean for the water cycle
Wednesday, December 7, 2011 at 10:50pm

science
are there any current or new treatments available for epilepsy?
Wednesday, December 7, 2011 at 9:27pm

science
Scientists performed an experiment to determine whether there is a connection between learning ability and food. They took two groups of 20 mice each, all from the same purebred strain. The mice were deprived of food for 3 days and then given a standard learning session in ...
Wednesday, December 7, 2011 at 8:34pm

science
What is epilepsey?
Wednesday, December 7, 2011 at 7:52pm

Physics/Science
If a lever problem asks you to find a way to "lift" something, does that mean to balance the object(s), or to tilt it past the equilibrium?
Wednesday, December 7, 2011 at 6:27pm

Science 7R (another qs.)
Give an exmaple of an organ system in an animal and name the parts that make up the organ system? need help!!! plz thank u ps: just need 2-3 sentences to answer this qs.
Wednesday, December 7, 2011 at 5:13pm

Science 7R
Explain the importance of the cell nucelous in the life of a cell? I need help, I just have to write 1 or 2 sentences to answer this qs.
Wednesday, December 7, 2011 at 5:12pm

science-biology
I'm pretty sure the answer is A, am I correct? Natural selection tends to A) increase the frequency of characteristics that enhance survival and reproduction. B) decrease the number of individuals in any given population. C) lead to an increase in genetic drift. D) ...
Wednesday, December 7, 2011 at 4:26pm

science
Explain how could use a spring,a ruler,some standard masses and some graph paper to find the weight of an unknown object.
Wednesday, December 7, 2011 at 12:43pm

Physical Science
If a force of 10 N is applied to a 4.5 kg object, then the object will accelerate at 2.22 m/s2? True or false
Wednesday, December 7, 2011 at 12:10pm

Science
How many electrons in the first free levels of silicon
Wednesday, December 7, 2011 at 12:41am

science
which of the following is a testable hypothesis helium, ammonia, oxidation-reduction?
Tuesday, December 6, 2011 at 11:44pm

Science
A lead bullet with a mass of 8.50 g traveling at 4.80 x 102 m/s strikes a 2.00 kg block of wood and is embedded in it. Both the bullet and the block are initially at 25.0°C. Assume that no heat is lost to the surroundings and that all the kinetic energy of the bullet is ...
Tuesday, December 6, 2011 at 9:40pm

Science
unscramble the letters rorpsfgnloadeeasi to make a phrase
Tuesday, December 6, 2011 at 9:30pm

Science
How many grams of hydrogen are produced from the decomposition of 100 grams of hydrogen peroxide? H2O2(l) → H2(g) + O2(g) a. 100 g H2 b. 50 g H2 c. 6 g H2 d. 1 g H2
Tuesday, December 6, 2011 at 9:26pm

science
i need an acrostics for punnett square!! i hv to have it by tommorrow and i cant think of anything and my science book isnt hellping much at all!!!! pwease helppp!and not an acrostics poem... i just need an acrostics
Tuesday, December 6, 2011 at 6:56pm

science
What is the magnitude of g at a height above Earth's surface where free fall acceleration equals 6.5m/s^2?
Tuesday, December 6, 2011 at 6:37pm

science
what is the role of an artist?
Tuesday, December 6, 2011 at 9:00am

physical science
a newton meter is a measure of work also known as the.... what?
Monday, December 5, 2011 at 11:35pm

science
I have to do a poster with the theme "Soil to Spoon" dealing with soil,forests and related to natural resources. Would you have any sugestions or links that would help me get started with this projest? Thank you for your help.
Monday, December 5, 2011 at 9:15pm

Science
Stage of mitosis in which Chromosomes split apart
Monday, December 5, 2011 at 9:13pm

science
If a hook exerts a force of .001N on the ceiling, how much force does the ceiling exert on the hook?
Monday, December 5, 2011 at 8:40pm

Science
How can we determine which of our traits are dominant or recessive?
Monday, December 5, 2011 at 5:51pm

science
What is the ratio of the large cell volume is 64mm3 and surface is 96mm2
Monday, December 5, 2011 at 5:41pm

Science 7R: Lab Questions (plz help)
I really need help. 12. What are the three main parts of an animal cell? 14. If all of our surfacecells were colorless, where do you think our skin color is located? My science teacher is collecting it tommrrow and grading it. Please Help!!! Thank You!!! :)
Monday, December 5, 2011 at 5:37pm

enviormental science
in two or three well-developed paragraphs, summarize how the reproductive behavior of individuals can affect the growth rate of their population
Monday, December 5, 2011 at 5:31pm

Science HELP
when traveling only a tiny distance through rock below the earths surface what happens to alpha particles ?
Monday, December 5, 2011 at 1:35pm

Science
what can alpha particles cause significant damage to ?
Monday, December 5, 2011 at 1:29pm

science equation
I don't think I have enough information to answer this question but my teacher says i do. The question is, If I drop a ball off of the AUL building and it take 8 seconds to hit the ground what is the velocity of the ball? I know that v=d/t so I have v=d/8 so there is ...
Monday, December 5, 2011 at 10:41am

science
guyz got a hard question... A net force of 10N to a 5 kg mass. bY HOW MUCH does a body accelerate.. Given: F=10N;m=5kg
Monday, December 5, 2011 at 9:25am

science
What net force is needed to acclerate a 10kg objec by 3m/s2? Given: m=10kg: 3m/s2
Monday, December 5, 2011 at 7:25am

science
A net force of 10N to a 5kg mass. By how much does a body accelerate? Given: F=10N; M=5kg
Monday, December 5, 2011 at 7:18am

science
Earths mass is 6 x 10^24kg and its radius is 6.38 x 10^6m (6380 km ). Use the inverse-square law to show that in space-shuttle territory, 200 km above the earths surface the force of gravity on a shuttle is about 94% of that at the earths surface.
Monday, December 5, 2011 at 6:21am

science
should we produce more nuclear reactors or less of them?
Monday, December 5, 2011 at 4:45am

science
How does the mass of all the interstellar matter in our galaxy compare with the total mass of its stars?
Monday, December 5, 2011 at 2:17am

Physical Science
How does the mass of all the interstellar matter in our galaxy compare with the total mass of its stars?
Sunday, December 4, 2011 at 10:48pm

science
what is the difference between science, non-science and psuedoscience?
Sunday, December 4, 2011 at 9:54pm

Science
Is there any science fair contests I can partcipate??? I found this topic in gr 5th and I really want to use it for my science fair project this year but we don't have it at my school so I want to use it for a contest.
Sunday, December 4, 2011 at 8:15pm

science
what is the difference between exhaled and inhaled air ( in respect to Molar Mass)?
Sunday, December 4, 2011 at 6:53pm

Physics/Science
Why would someone using a Foucault Pendulum at the equator say that Earth does not rotate?
Sunday, December 4, 2011 at 4:02pm

science-biology
. Explain the biological logic of administering anti-Rh antibodies to Rh- mothers immediately after they give birth to an Rh+ baby?
Sunday, December 4, 2011 at 3:12pm

science
a 500kg remote control car traveled 10 meters down the street in 5 seconds. What is the toy car's momentum?
Sunday, December 4, 2011 at 2:43pm

Physical Science
(a) Why is the sun considered to be located in the central disk of our galaxy? (b) What is thought to occupy the center of the disk?
Saturday, December 3, 2011 at 11:28pm

Physical Science
How does the mass of all the interstellar matter in our galaxy compare with the total mass of its stars?
Saturday, December 3, 2011 at 11:28pm

Physical Science
Both galactic nebulas and globular clusters occur in our galaxy. Distinguish between them.
Saturday, December 3, 2011 at 11:27pm

Physical Science
Which astronomical objects that appear as points of light to the unaided eye appear as disks with the help of a telescope?
Saturday, December 3, 2011 at 11:15pm

Science
For my science project, it says to write a "Future Research" section to go on the board. Could you just explain to me what exactly goes in that section? I'm so confused!
Saturday, December 3, 2011 at 8:48pm

Science HElp
In blunt trauma of thoracic cavity, which organ of greatest risk of injury. live lungs heart stomach i googled but could not find the best anwser cuz every organ above listed is involved.
Saturday, December 3, 2011 at 7:35pm

8th grade science
what does Radium bond with and what are the reactions
Saturday, December 3, 2011 at 6:04pm

science
which planet increase and decrease like moon
Saturday, December 3, 2011 at 9:43am

English
I urgently need you to check a few sentences 2-4 which I need to include in an email. 1)The universe was conceived in the forms of a chain of being and a cosmic dance. (Can I replace "in the forms of" with "like" or "as"?) 2) As you are both a ...
Saturday, December 3, 2011 at 5:21am

physical science
On the surface of the moon, where the acceleration due to gravity is about one-sixth that of Earth, a 100-kg astronaut would have a mass of_____ and a weight of _____ A. 100kg, 1000N B. 16.6kg, 166N C. 100kg, 166N D. 600kg, 1000N
Friday, December 2, 2011 at 3:55pm

Science
What is the gravity at the height of 15000 km above the earth surface
Friday, December 2, 2011 at 8:56am

science
Describe clearly how the body physiological mechanism aids in arresting haemorrhage during damage to blood vessels?
Friday, December 2, 2011 at 7:57am

science-biology
A family member recently found out her child's blood group was AB+ yet hers is O+. i'm suppose to explain this oddity but i don't know how? so please help me!!! thanks
Friday, December 2, 2011 at 5:00am

Science
A ball bounces up 28 centimeters after being dropped from a height of 2 meters. What percent of the potential energy is converted into kinetic energy on the bounce?
Thursday, December 1, 2011 at 11:23pm

Environmental Science
the Nitrogen, carbon, phosphorous cycles roll in the tundra
Thursday, December 1, 2011 at 11:18pm

science
Magnetisim is a type of
Thursday, December 1, 2011 at 9:21pm

science
What are vesicles?
Thursday, December 1, 2011 at 8:43pm

Science
How does Earth have seasons?
Thursday, December 1, 2011 at 8:15pm

Science
Give an example that explains each below. a- *answered* b- fluids exert pressure
Thursday, December 1, 2011 at 7:24pm

PLEASE
ANYONE PLEASE REPLY MY OTHER POST (SCIENCE 7R: LAB QUESTIONS) IS MY ANSWER IS CORRECT ON #13????? PLEASE!!!!!!!!!!!!!!!!!!!!! PLEASE!!!!!!!! - Laruen , Thursday, December 1, 2011 at 6:33pm Chloroplast are used for food making (photosynthesis). That is only found in a plant ...
Thursday, December 1, 2011 at 6:45pm

Science 7R (Lab questions)
We did a lab today at science and for homework we have to answer questions about the Lab. I need help on 2. 12. Name two ways that a plant and animal cells differ in structure? 13. How are plant and animal cells different in function? She said that we have t write it in ...
Thursday, December 1, 2011 at 5:26pm

6th grade science
describe the rate at which chemical weathering generally takes place.
Thursday, December 1, 2011 at 4:24pm

science
a bouncing ball of mass 200g leaves the ground with a kinetic energy of 10J a)if the ball rises vertically, calculate the maximum height it is likely to reach. b)in practice, the ball rarely reaches the maximum height. explain why this is so.
Thursday, December 1, 2011 at 2:04pm

science
what is the reaction when ethanol and ethanoic acid react in the presence of an acid catalyst
Thursday, December 1, 2011 at 7:34am

science
a gaseous compound of carbon and hydrogen contains 80% carbon by mass, one dm3 of the compound at s.t.p weighing 1.35g. calculate
Thursday, December 1, 2011 at 7:12am

Physics please help!
You are the science officer on a visit to a distant solar system. Prior to landing on a planet you measure its diameter to be 2.070E+7 m and its rotation to be 19.8 hours. You have previously determined that the planet orbits 1.590E+11 m from its star with a period of 368.0 ...
Wednesday, November 30, 2011 at 10:49pm

Science
What mass of potassium iodine should be dissolved in 200 grams of water to make a 3.0 percent solution?
Wednesday, November 30, 2011 at 10:15pm

science
sample of gas at 17Â°C from a volume of 5.68 L and 1.10 atm to a container at 37Â°C that has a pressure of 1.10 atm. What is the new volume of gas?
Wednesday, November 30, 2011 at 10:04pm

science
When water is split into hydrogen and oxygen what happens- is it a change in matter
Wednesday, November 30, 2011 at 8:54pm

Animal Science
I need a statistic of how many dogs and cats are currently in a foster home in the us. Does anyone know a website that has this credible statistic? thanks
Wednesday, November 30, 2011 at 7:34pm

Science
A block of mass 3.1 kg hangs vertically from a frictionless pulley of mass 5.9 kg and radius 14 cm. Treat the pulley as a disk. Find: a) the acceleration of the block; b) the tension in the rope; c) the speed of the block after it has fallen 55 cm, assuming it started at rest:
Wednesday, November 30, 2011 at 5:44pm

Science
A torque of 60 N*m acts on a wheel of moment of inertia 30 kg*m^2 for 5 s and then is removed. a) What is the angular acceleration of the wheel? b) How many revolutions does it make in 15 s if it starts at rest?
Wednesday, November 30, 2011 at 5:44pm

Science
Two particles with masses 3.1 kg and 6.6 kg are connected by a light rod of length 4 m. Find the moment of inertia of the system about an axis perpendicular to the rod and passing through: a) the midpoint of the rod; b) the center of mass of the system of particle:
Wednesday, November 30, 2011 at 5:43pm

Science
Four particles in the xy plane have the following masses and coordinates: 1 kg at (3 m, 3 m), 2 kg at (-2 m, 4 m), 3 kg at (3 m, -2 m) and 4 kg at (-3 m, -4 m). Find the total moment of inertia about: x-axis? y-axis? z-axis?
Wednesday, November 30, 2011 at 5:42pm

Science
At t = 0 s a flywheel is rotating at 30 rpm. A motor gives it a constant acceleration of 0.9 rad/s^2 until it reaches 70 rpm. The motor is then disconnected. How many revolutions are completed at t = 20 s?
Wednesday, November 30, 2011 at 5:42pm

Science
Two blocks with masses m1 = 3.9 kg and m2 = 6.7 kg are connected by a string that hangs over a pulley of mass M = 2.2 kg and radius R = 0.11 m as shown above. The string does not slip. Assuming the system starts from rest, use energy principle find the speed of m2 after it has...
Wednesday, November 30, 2011 at 5:41pm

science
Why is oxygen important for life? Why is Nitrogen important for life? please help me :D
Wednesday, November 30, 2011 at 3:12pm

science
what is oxegen
Wednesday, November 30, 2011 at 2:28pm

statistics
What is the probability that a student in a college of 650 students in both a math major and a computer science major ( assuming these events are independent) If there are 72 math majors and 105 computer science majors?
Wednesday, November 30, 2011 at 12:09pm

science
A 1,200kg car has its tyres inflated to a gauge pressure of 180kPa.How large an area for each tyre is in contact with the ground?
Wednesday, November 30, 2011 at 9:45am

Science
How much more sugar could be added to 100 mL of water if it's temperature was raised from 50 degrees C to 70 degrees C?
Wednesday, November 30, 2011 at 7:20am

science
Why is the helium spectrum have so many more lines than the hydrogen spectrum?
Wednesday, November 30, 2011 at 7:10am

science
an oil tanker has a mass of 100 000 tonnes. its kinetic energy is 200 MJ.Calculate its speed. (1Tonne=1000kg, 1 MJ= 1 Megajoule= 1 000 000 J) PLEASE HELP
Wednesday, November 30, 2011 at 7:05am

Earth Science
Which Scientific hypothesis for the Origin of Life on Earth is most widely accepted.? What evidence is there for the hypothesis? Need help. I'm just not how to go with the question.
Wednesday, November 30, 2011 at 4:52am

Physics
I can not figure this out. You are the science officer on a visit to a distant solar system. Prior to landing on a planet you measure its diameter to be 2.070E+7 m and its rotation to be 19.8 hours. You have previously determined that the planet orbits 1.590E+11 m from its ...
Wednesday, November 30, 2011 at 2:03am

physical science
is it possible for people of different masses to have the same power output? Explain
Tuesday, November 29, 2011 at 10:51pm

SCIENCE
THE PIG HAS FOUR TOES ON EACH FOOT. TWO OF THE TOES ARE VERY SMALL AND DO NOT HAVE A MAJOR FUNCTION IN WALKING. HOW WOULD LAMARCK HAVE EXPLAINED THE REDUCED SIZE OF THE TWO SMALL TOES? WHICH PART OF HIS THEORY IS THAT AN EXAMPLE OF?
Tuesday, November 29, 2011 at 8:00pm

Science
A 10 N force pushes a rock due east while a 10 N force pushes the rock due north at the same time. What will the rock experience in terms of movement? (be specific)
Tuesday, November 29, 2011 at 7:55pm

chemistry
balanced equation: HC2H3O2 + NaOH -> What is the mole ratio of these two substances?
Tuesday, November 29, 2011 at 4:47pm

chemistry
I wonder if your science experts can help me find material (general information, word lists, books) in English about biodiversity in water and waterways and microbiological analysis of water. This would be for Italian biologists who are familiar with the subject but don't ...
Tuesday, November 29, 2011 at 2:07pm

English
Which of the following publications are both listed under the "Magazines" results? A. Astronomy and Science B. Odyssey and Natural History C. Science News and Earth Island D. The Economist and American Scientist
Tuesday, November 29, 2011 at 1:52pm

Science-chemistry
A compound is found to have 56.4% potassium, 8.7% carbon, and 34.9% oxygen. What is the empirical formula?
Tuesday, November 29, 2011 at 1:12pm

English
I wonder if your science experts can be help find material (general information, word lists) in English which is needed to talk about biodiversity in water and waterways and microbiological analysis of water. This would be for biologists who are familiar with the subject but ...
Tuesday, November 29, 2011 at 10:08am

SCIENCE
PLEASE CAN ANYBODY TELL ME WETHER ROOTS ARE DECOMPOSERS OR NOT ?
Tuesday, November 29, 2011 at 7:03am

Science
Does the Earth and moon have large molten core or only 1 of them does? I think the Earth only has large molten core
Monday, November 28, 2011 at 9:31pm

phiscal science semester 2
For the reaction C2H6+O2>CO2+H2O what are the coefficient to the chemical substance it goes with for balanced reactions?
Monday, November 28, 2011 at 9:09pm

science anyone
I was wondering if someone could look at my answers and let me know if they sound okay. I put them in at 6:48 and 6:54 today. I understand if you can't help!
Monday, November 28, 2011 at 8:30pm

Science Fair
Is there any science fair contests that are going on in spring valley????
Monday, November 28, 2011 at 7:36pm

6th grade science
I am pretty confused about mechanical weathering and chemical weathering. what is the easiest way to remember the differences of these 2 things
Monday, November 28, 2011 at 7:07pm

science
How do some fungi help plants grow larger and healthier? Some fungi help plants grow larger and healthier when their hyphae into or on a plant's roots. The hyphae spread out and absorb the water and nutrients the plants needs.
Monday, November 28, 2011 at 6:54pm

science
Describe the process by which a fungus feeds. A fungus feeds first by growing hyphae into the food source. Then chemicals ooze from the hyphae into the food source. The chemicals break down food into substances that the hyphae are able to absorb. I used our science book. Our ...
Monday, November 28, 2011 at 6:48pm

Physics/Science
At what point in the swing of a pendulum is the maximum amount of the ball's motion transferred to the object it hits? (I think it's at its lowest swing point but I'm not completely sure.) And what does this "kinetic energy" depend on?
Monday, November 28, 2011 at 5:46pm

science infectious disease
i have a project to present on salmonella can you help me find website that is understandable 7th grade i can use
Monday, November 28, 2011 at 5:29pm

science
2 questions. What part of the cell contains chlorophyll? what do plants usually have one large one of and animals may not have any or have several smaller ones?
Monday, November 28, 2011 at 5:16pm

Science
Okay, say im doing a science fair project, and I am not really good at coming up with questions, what would be a good question to ask about Newtons First Law of Motion
Monday, November 28, 2011 at 12:10pm

English
Can you please check these sentences for me. It's really urgent. 1) Our science teachers are enthusiastic about your proposal of holding our first meeting in Italy. 2)However, prior to our meeting, the head of our science department would like to discuss the theme of our ...
Monday, November 28, 2011 at 9:09am

science HElp
the covalent bond between the monomers of an enzyme macromolecules are peptide ester or phosphodiester bond question2 why urctic forx change coloring from brown in summer and white in winter . My answeers is = fox change phenotype but genotypes does not chane? am i right ?
Monday, November 28, 2011 at 8:20am

Physical science
The brakes of a car are applied to give it an acceleration of -3m/s^2. The car comes to a stop in 5 s. What was its speed when the brakes were applied?
Sunday, November 27, 2011 at 11:25pm

Physics/Science
At what point in the swing of a pendulum is the maximum amount of the ball's motion transferred to the object it hits? What does this "kinetic energy" depend on?
Sunday, November 27, 2011 at 8:16pm

science
if 1 liter of water is 100 degrees celsius if he has 2 liters what would be the boiling point be would it be higher lower or the same or be unknown
Sunday, November 27, 2011 at 7:23pm

Science
Will yeast be able to use sugar substitutes as sterling material for fermentation? Why or why not?
Sunday, November 27, 2011 at 6:23pm

physical science
absolute zero is the same as
Sunday, November 27, 2011 at 5:56pm

Question
If I join these clubs in high school will I make it to Ivy League Schools Computer Club Any student interested in computers will learn skills such as creating web designs and building PCs. Students will also have the opportunity to learn advanced techniques using computer ...
Sunday, November 27, 2011 at 4:57pm

science
what is the weather degrees for november 20 through november 25 in las vegas
Sunday, November 27, 2011 at 4:11pm

Science
What is phenyl oxalate ester?
Sunday, November 27, 2011 at 2:12pm

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