# My science fair project is growing bacteria from food that is left out and seeing how much the bacteria increases over time. How would I write my hypothesis?

109,078 results, page 86-
## Social Studies

How do the rivers/seas and deserts of China impact it's culture over time? I need to write a paper so if i could get a lot of info on this it wud be great help! -
## college

how to write a persuasive essay using a strategy of convincing my employer of the value of providing tuition reimbursement and making extra time for adult learning. -
## writing

I have to write a narrative essay about a time when i had to do something that went against my beliefs or convictions. I thought about it for like an hour, but I can't figure out a decent example. Can anyone tell me an example so I can understant what kind -
## Algebra 1 REPOST - Please Help!

I have been trying to figure this out for a long time to no avail. Can you please help. Also, are there any rules that help figuring these out? write a rule for the function represented by the graph. domain: 0,3,6,9 range : -2,-1,0,1 -
## Algebra

Didnt write my question too good last time so here is what I meant. This is a mixed ezpression written as fraction and then to be put in simplest form. 3/1 minus 2x-2/x^2-1 thank you -
## Science

A scientist studying the effects of gamma rays on marigolds gathered the data shown below. Hypothesis: Marigolds exposed to higher levels of radiation will not grow as well as marigolds that are exposed to less radiation Plant A: Gamma Rays (Rad/day) is 5. -
## Science

Hey guys! If you could help me with a few of these question (they are fill in the blanks), that would be much appreciated. 1. Fertilizers and pesticides pplied to farm fields in Pennsylvania have made their way down into the Chesapeake Bay in Maryland. -
## statistics

A researcher was interested in assessing the effectiveness of the Statistics Diet as compared to a regular low calorie diet on weight loss. In the study, obese participants were randomly assigned to one of two groups: (1) the Statistics Diet, which -
## English

I have to write Anecdote and I choose "you can always count on your friend" However my teacher said that Anecdote is not fictional and that it is something that happened you or someone you know. Well this happened to my friend and I wrote about it. I am -
## PHYSICS help!!!!!!

A commuter train travels between two downtown stations. Because the stations are only 1.36 km apart, the train never reaches its maximum possible cruising speed. During rush hour the engineer minimizes the travel time t between the two stations by -
## Factoring Polynomials (need HELP!!!)

Ok, this is pretty long, so bear with me. The problem says: The diagram (not shown here, sorry) shows a cube of metal with a cylinder cut out of it. The formula for the volume of a cylinder is V=pi*r^2*h, where r is the radius and h is the height. The -
## Psychology

16. Greg and Lydia have been married three years. Both hold executive positions in large corporations and are well respected in their fields. Last January, they were thrilled with the arrival of their first child. Lydia returned to her same position after -
## oceanography

14C has a half-life of 5,730 years. If we start with 70 grams of 14C at time zero how many grams of 14C will be left after three half-lives? -
## HUMAN ORGANIZATON BEHAVIOR.... PLEASE HELP

can u help to have an idea to get the correct answer.for the question below. What model of organizational behavior would be most appropriate in each of the following situations? (Assume that you must use the kinds of employees and supervisors currently -
## Literature

-Write a short narrative about a conflict or confrontation that is funny, scary, sad, or just interesting to you. Your story can be true or fictional and it must be atleast 5 paragraphs long. -This is what I have: “MC, you can do this. It’s only a -
## Algebra

Image of one smaller cube labeled with fish food with dimensions of one-quarter feet on each side. Larger cube labeled shipping box with dimensions of length 3 and three-fourths feet; width of 3 feet; height of 3 and one-quarter feet. Determine how many -
## biology help plz?????????????????

Please tell me which one is TRUE or FALSE for the statements below: 1. During the cardiac cycle the pressure in the left ventricle and right ventricle are approximately equal. 2. During isovolumetric contraction the left ventricular pressure continues to -
## Heeeeeeeelp

Read the following instructions in order to complete this assignment and review the example of how to complete the math required for this assignment: Use the properties of real numbers to simplify the following expressions: 2a(a – 5) + 4(a – 5) 2w – -
## Science question

Will the evaporation of ocean water at the equator cause the ocean water to become more or less salty, why? Wouldn't it be because it evaporates, it will be more salty cause the fresh water is evaporating and the salt is left behind? Thanks -Allyson -
## math complicted question please help

ok umm it takes pam 45 mitues to drive to work and 60 minutes to drive home from work.write the ratio of he time pam spends driving home from work to the time she spends driving to work in tree differnt ways.(30 points) -
## English Comma splices and run on sentences

Janet left fingerprints on the glass, the detectives were able to solve the crime. Janet left fingerprints on the glass so the detectives were able to solve the crime. Janet left fingerprints on the glass; consequently, the detectives were able to solve -
## math 116 appendix d

b) Suppose you want to cover the backyard with decorative rock and plant some trees as the first phase of the project. You need 30 tons of rock to cover the area. If each ton cost $60 and each tree is $84, what is the maximum number of trees you can buy -
## Literature

[This activity is from Daphne Du Maurier's short story, The Birds] Du Maurier tells us that the birds are trying to destroy human life, but we never know what is making them do it. Suppose you are a historian at some future time studying this famous bird -
## science

how do i reword this purpose staetment for my experiment? Lab Manual: Purpose: To measure a physiological quantity,your reaction time to both audio and visual stimulus. Rewording: To scientifically measure the test subjects reaction time in both audio and -
## physics

a uniform wooden beam 10 m long ang weighting 200 N is used to support a load of 300 N on the left end , and 500 N on the right end. Determine the center of the gravity if another load of 80 N is 2 m from the left end -
## algebra

Set the equations equal to each other so you can determine when the car and bus are the same distance from the intersection. Collect all the terms on the left side of this new equation., leaving 0 on the right side. Factor the expression on the left side -
## Math algebra 1A

Can someone tell me if these answers are correct please? 1. what are the steps of the order of operation? do all operations within grouping symbol first. evaluate all powers before other operations. multiply & divide in order from left to right. add & -
## SCIENCE 1

for following reaction at equilibrium if we increase the reaction temperature the equilibrium will 2SO3(g)<-->2SO2(g)+O2(g)(deltaH degrees=198kJ) A. not shift B.the question can not be answered because Keq is not given C.shift to the right D. shift -
## Inequality 6 grade math help

Am I doing this right? Mr. Wizard started at zero and jump to left 7 feet. Auntie long legs started at zero and John to right 5 feet which frog was ahead? Write an inequality statement (using < or >) to compare the values of their lending points. 7 -
## Dating with Radioactivity HELP!!!

1. In what type of rocks would geologists most likely find evidence of past life forms? igneous rocks metamorphic rocks volcanic rocks sedimentary rocks** 2. The physical, chemical, and biological laws that operate today have also operated in the geologic -
## Nicola

Hello, I need some help with a few questions about this poem: She was a Phantom of delight When first she gleamed upon my sight; A lovely Apparition, sent To be a moment's ornament; Her eyes as stars of Twilight fair; [5] Like Twilight's, too, her dusky -
## math

v(t)= Ce^(k(square root(t)) Suppose that the dealer, who is 25 years old, decides to sell the card at time , sometime in the next 40 years: 0< or equal to t < or equal to 40. At that time , he’ll invest the money he gets for the sale of the card in -
## math URGENT!

28. You are surveying students to find out their opinion of the quality of food served in the school cafeteria. You decide to poll only those students who buy hot lunch on a particular day. Is your sample random? Explain. 29. Ira wants to determine the -
## English

1. Raise your hands to shoulder height. 2. Lower your hands to foot height. 3. Lift your right hand to nose height. 4. Lift your left hand to eye height. 5. Bend your body left, and then bend your body right. 6. Bend your body to the left, and then bend -
## math homework

two boats A and B left a port C at the same time on different routes. B travelled on a bearing of 150 and A travelled on the north side of B. When A had travelled 8km and the two boats was found to be 12km. Calculate the bearing of A route from C. Show -
## Physics

(a) Suppose that on the moon an astronaut hit a golf ball so that it left his club at a speed of 45ms-1, at an angle of 20degrees to the horizontal. calculate the time of flight of the ball. (b) calculate the horizontal distance travelled by the ball -
## Chemistry

250-mL volumetric flask, 125 mL of a 6.0 M hydrochloric acid was added. This was then diluted with more water to reach the 250-mL mark. What is the molarity of the acid at this time? Initial: M1 = 6.0 M hydrochloric acid V1 = 125 mL = 0.125 L Diluted: M2 = -
## economics

7. Which situation is more likely to occur in a market economy than a command economy? A. People line up for cheap but scarce products. B. A student is guaranteed a job out of college. C. An inventor designs and produces a new type of car. D. A committee -
## Chemistry

Did I answer this equilibrium question correctly? 2CO(g) + O2(g) <-> 2CO2(g) 1) How will increasing the concentration of CO shift the equilibrium? a] to the right [i chose this] b] to the left c] no effect 2] how will increasing the concentration of -
## english

I have to do a project on 4 types of writing. Fictional narrative, Personal narrative, Informational writing and Persuasive writing. The project consists of giving characteristics of each, as well as 2 prompts (examples) for each. This is what I have so -
## Science

I'm really bad at Biology and Science in general. Chemistry and Physics will be difficult for me because I'm not good at the Science branch even though I study and work hard for Science/Biology. What can I do to improve? -
## Physics

Can a lamp with a broken light bulb produce electromagnetic radiation? and What happens when you have two colored lamps in a dark room. A red one on the left and a green one on the right, and you place your hand in the center of the 2! Would the shadows on -
## Chemistry(Photoelectric effect)

I've got this question wrong 2 times now... Which of the following statements about the photoelectric effect are correct? I. If electrons are being ejected, the number of electrons ejected increases with increasing light intensity. II. The minimum energy -
## statistics

Using the definition of recovery provided in W1: Assignment 5, determine how many participants recovered at the end of posttreatment and use a chi-square analysis to compare recovery rates across the three treatments at both posttreatment and follow-up. -
## Science urgent

A.) Show how vertical multiplication can be used to do a charge balance if Zn2+ combines with Cl- b.) Write the chemical formula name for the compound that would be formed -
## Social Studies

I need to write a paper on a transgender role model. It can be someone in the field of art, science, math, or business leadership. Any suggestions? -
## science

Write a 350- to 700-word paper in APA format that includes all elements of the Energy Resource Plan outline. -
## social science grade 8 138

10 advantages of colanisation and write if the advantage has a negative or positive impact give a reason for your answer -
## microeconomics

. Suppose that two players are playing the following game. Player 1 can choose either Top or Bottom, and Player 2 can choose either Left or Right. The payoffs are given in the following table: Player 2 Player 1 Left Right Top 9 4 2 5 Bottom 1 0 3 1 Where -
## science

Ball 2 with a mass of 30 kg, is moving left at 10 m/s. At what velocity should ball 1, with a mass of 10 kg, move to the right and collide with 2, so that ball 1 rebounds with a velocity of 10 m/s. assume that the collision is perfectly elastic. -
## chemistry

A student is working on a research project. The instructions in the book on how to prepare Ni(NH3)6Cl2 say that the percent yield in this preparation is 75.5 %. If the limiting reagent for the preparation is NiCl2·6H2O, and the student needs 50.0 grams of -
## Dynamics

The rotor is an amusement park ride where a person enters the Rotor when it is stationary and stands against the wall with their back against the wall. The rotor then begins to spin around a vertical axis. After reaching cruising speed, the floor drops -
## 5th grade math

In the fourth grade class at Baker Elementary, 9 students are left-handed. The fifth grade has 7 left-handed students and the sixth grade has 6. The number of students in the fourth grade is 3 times the number of left-handed students in the class. The -
## calculus

The number of Drosophila fruit flies in a controlled experiment assumes the following growth pattern when the food source is limited: N(t) = 120 1+11e−0.4t where t measured in days. A. How many fruit files were there in the beginning? B. What is the -
## Art

My class and I have done this diorama for a art project, and to do it we chose the movie twilight. We all had to pick different scenes, and I chose the treetop scene. I need help on my statement for it. This is what i have so far: This is the scene where -
## math

Two planes left the same airport traveling in opposite directions. The first plane left the airport at 2 P.M. traveling at an average rate of 500 mph. The second plane left the airport at 4 P.M. traveling at an average rate of 550 mph. When will the planes -
## Algebra

10. Write an equation in point-slope form for the line through the given point with the given slope. (5, 2); m=3 a. y+2=3(x-5) *** b. y+2=3x-5 c. y-2=3(x+5) d.y-2=3(x-5) 11. Write an equation in point-slope form for the line through the given point with -
## science

why are bricks burnt in kilns they arnt burnt, they are baked, it increases the hardness and water resistasnce over just letting them sit and dry. Bricks are ceramics. They have to get to a high temperature before the silica in the bricks melts and bonds -
## Algebra

a. Suppose that a market research company finds that at a price of p = $31, they would sell x = 74 boxes of product each month. If they lower the price to p = $25, then more people would purchase the product, and they can expect to sell x = 80 boxes in a -
## English

How can I make this sentence present tense? Or is it already present tense? The problem I'm having is with the word "banished" which is past tense. And my teacher wants us to write in the present tense. I have the main verb present so does that make the -
## English-Please Help Due @ 8a.m.

Can you please check for any errors. And corrent the errors for me. It is due tomorrow morning. Also, let me know if you think this is a descriptive essay. If you think i need to add something else let me know. My Dear Mother She is only about five feet -
## English

I just need to know if the verb “prophesy” can be follow by to (ex. to Macbeth), if “army” is considered as a collective noun (plural), if the word devil is used with the definitive article and if the expression “to be born by “ is correct. I -
## Biology

I'm having trouble answering this: The average size of a large fish that humans use for food has been decreasing over time, Exp-lain how, exactly, this happens - be sure to discuss genes, proteins, traits, and selection pressure. This is all I can answer -
## english

help on how to write a narrative like a first lecture in the university What are you trying to do? Write a story? Please be specific. http://grammar.ccc.commnet.edu/grammar/composition/narrative.htm -
## Science

Duckweed is a small plant that grows in water Many waterbirds depend on duckweed for food Duckweed can reproduce rapidly in water that is rich in the nutrients used in agriculture. Which of these human activities would most likely cause an overgrowth of -
## English

Which phrase from Marge Piercy's "To Be Use" best illustrates the poem's celebratory tone toward hard work? I want to be with people who submerge in the task, who go into the fields to harvest and work in a row and pass the bags along, who are not parlor -
## algebra 2

Science and medicine. Find the time required for an object to fall to the ground from a building that is 1400 ft high. using the formula : t = 1/4 radical (s) t=1/4 radical 1400 t= 10 radical 14*1/4 t= 5 radical 14 /2 what are I doing wrong I am suppose to -
## Geometry

180° about z takes (x,y,z) -> (-x,-y,z) 90° about x takes (x,y,z) -> (x,z,-y) so, your two rotations take (x,y,z) -> (-x,z,y)... z axis top/bottom, x/y axis right/ left... A dice has 3 on the top, 4 bottom, 1 left, 2 right, 5 left back, 6 right -
## physics

An object is moved left to right horizontally 2 meters while a force of 3 Newtons to the left acts. No other forces act on the object. Draw a diagram of showing the displacement and the force and calculate the work done on the object in Joules. -
## chemisty

what will be the mass of angydrous Alum left over if one starts with 100.00 g of hydrated Alum? please can you explain what fraction do I need to use. Based on the given information I can find the %theoretical of water in angydrous Alum. But I still don't -
## Math HELP!

What is the height of the tree? Its a right angle triangle but its laying on its left side. The right side is 52 ft. the left side is 38 ft. The tree is standing as tall as the bottom. A. 64.4 ft. B. 35.5 ft. C. 37.4 ft. D. 90 ft. Is the answer A? Thanks -
## anatomy

The second branch of the aorta takes blood to the A.heart B.right common carotid artery C.left common cartid artery D.left subclavian artery would it be A not sure -
## Math

Jaden gave away 1/2 of her money on monday. He then gave away 1/3 of what was left on Tuesday. On Wednesday, she spent 1/4 of his remaining money. What fraction of her original money does he have left -
## structural isomer?

what is structural isomer? can you alos give me examples? thanks ! Draw the structure pentant (acutally it is n-pentane) out to see it. CH3CH2CH2CH2CH3 H3C \ CHCH2CH3 / See (if this came out -
## hea;th care

I am writing a essay on EMR and can not find The adoption period for EMR. I know it is a growing process but would like to know how long it takes ot first set it up in an organization. Can anyone help? -
## Math

Sarah starts at a point 26 miles from school and runs toward school at 6 miles per hour. Ryan starts from school 1.3 hours later and runs towards Sarah at 8 miles per hour. Let x be the number of hours Sarah has been running Write an expression in terms of -
## social studies

2. During the 1950s, the advent of _______ created the largest and fastest-growing impact on American society. A. suburban communities B. television. C. fundamentalist religion. D. educational reform -
## Physics

A mchanical analody of the resonance in an RLC circuit is (a) flying off a spinning merry-go-round (b) a growing snow ball rolling down a hill (c) pushing someone in a swing (d) ripples in a pond -
## S.S.

14. The politicians who met at the Hartford Convention in 1814 A. recommended changes in the Constitution. B. favored secession from the Union. C. represented the interests of the cotton-growing states. D. were mainly concerned with increasing trade with -
## history

During the 1950s, the advent of _______ created the largest and fastest-growing impact on American society. A. television. B. suburban communities C. educational reform D. fundamentalist religion. I think it's D. Am I correct? -
## S.S.

14. The politicians who met at the Hartford Convention in 1814 A. recommended changes in the Constitution. B. favored secession from the Union. C. represented the interests of the cotton-growing states. D. were mainly concerned with increasing trade with -
## Math story problem

Trains a and b are traveling in the same direction on parallel tracks;Train a is traveling 40mph and train b is traveling 50mph. Train A passes a station at 8:15 am. If train b passes the same station at 8:27 am what time will train b catch up to train a? -
## math/story problem

Trains a and b are traveling in the same direction on parallel tracks;Train a is traveling 40mph and train b is traveling 50mph. Train A passes a station at 8:15 am. If train b passes the same station at 8:27 am what time will train b catch up to train a? -
## Physics

Hi, I have two homework problems I am having issues with. 1. Two carts of equal mass, m = 0.250 kg, are placed on a frictionless track that has a light spring of force constant k = 53.0 N/m attached to one end of it. The red cart is given an initial -
## math

Trains a and b are traveling in the same direction on parallel tracks;Train a is traveling 40mph and train b is traveling 50mph. Train A passes a station at 8:15 am. If train b passes the same station at 8:27 am what time will train b catch up to train a? -
## math

Sheila needs to hire a babysitter for the evening. The babysitter charges $10 for each hour and also charges for the time she spends driving to and from the house. She thinks it will take 1.5 hours of total driving time. Sheila is willing to spend $80 for -
## History

MS. SUE PLEASE HELP ME! SOCIAL STUDIES QUESTION? So I am trying to write two articles and am NOT asking you to write them for me, just for help so I can write them. It's about the French and Indian war. I know that they were fighting and why, but what -
## Math/Science(Short Question 10th grade))

[History Homework] Please answer 1. What are 2 pieces of technology essential today? 2. If you could give a prehistoric person one item from today what would it be? 3. Why is writing important for civilizations? 4. Why is theater/drama important to -
## Science

A scientist studying the effects of gamma rays on marigolds gathered the data shown below. Hypothesis: Marigolds exposed to higher levels of radiation will not grow as well as marigolds that are exposed to less radiation Plant A: Gamma Rays (Rad/day) is 5. -
## Psychology

Could someone see if I got any of the questions wrong. I feel that some questions have multiple answers but there is only one that is correct. Please help. thanks a lot Cognitive Development Respond to the following statements using Piaget’s Stages of -
## MATH

please check my answers 1. the ratio of 5 3/5 to 2 1/10=8to 3 2.the ratio of 7 dimes to 3 quarters =14 to 15 3.Marc took 3 hours (h) to mow a lawn while Angelina took 150 minutes (min) to mow the same lawn a week earlier. Write the ratio of Marc’s time -
## math

please check my answers 1. the ratio of 5 3/5 to 2 1/10=8to 3 2.the ratio of 7 dimes to 3 quarters =14 to 15 3.Marc took 3 hours (h) to mow a lawn while Angelina took 150 minutes (min) to mow the same lawn a week earlier. Write the ratio of Marc’s time -
## science

what is mutaualism? how has it affected the existence of clown fish and sea anemone? I think mutualism is where two species live in an ecosystem where they interact with each other and one gains something from the other like a bug cleaning a animal and in -
## English

Please help me create basic character outline!? I already some part but please help me continue with it. Here is what i wrote. Since Sava was a little girl she loved watching little kids. When she became older she eventually wanted kids as her love for -
## english

Hey, Can please somebody read and correct this text? I thning that this time it is very bad... But I can't say exactly why... maybe someone of you can help me? Thanks Minnie 1. What does Cohen point out before giving his seven monster theses? Before Cohen -
## math help

can someone give me an example of what they mean about this problem. I have to come up with a real-world example where we can apply the concept learned within our chapter that the data could be linear which it talks about solving equations using the method -
## business

Can you please help me with this scenario? I'm struggling with this. Thank you! Sample Statement Mariana Rivera is married, 35 years old, with two children, 5 and 13. She lives in Brisas, in a brick house, and has one dog and two cars. She and her husband -
## math

your class had a pizza party. 3\8 of one pizza was left over after 4/8 of another pizza was left over .you put them both into one box. how much pizza do you have altogether? -
## sat

12 pitchers and 3 pitcher's is left handed, one radom chosen what probability the pitcher is left handed? -
## Math

A sample of 50 children had one child that is left-handed. If there are 750 children in a school, how many should be left-handed?