# 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?

54,111 results, page 12
1. ## Science

I was asked to give topic for science fair. Basically I want to have improvement in transportation. Please give me some ideas. Is there any area in transportation that is also having disadvantages means which area need to be improved so that it causes less
2. ## algebra

In an experiment, the population P of bacteria is given by P=1000e^kt,where k is constant.If the size of population bacteria is found to be 3000 after 10 hours, what is the size of the population after 5 hours?Show me the solution please.
3. ## math..word problem

A number of bacteria are placed in a glass. One second later each bacterium divides in two, the next second each of the resulting bacteria divides in two again, etc. After exactly one minute, the glass is full. When was the glass half full?
4. ## Math- Geometric solutions and problems RIA

A. -x^3 and x^11 ; 3 B. 0.6 and -0.002025; 2 C. x^2,x^6,x^10.... (A sub 20) * sorry for the sub :D but I guess that's already clear? Hehe. D. a^2/2 , a^4/4, a^6/8.... (A sub 10) E. X+1, 2x^2 + 2x, 4x^3 + 4x^2 (A sub 6) F. 32y^2, 16y^2, 8y^2 (A sub 8) *
5. ## Statics

You wish to test whether or not a coin is fair, so you toss it 400 times and obtain 220 heads. Test the null hypothesis that the coin is fair and balanced against the alternative that it is not fair and balanced. Use the 1% significance level. Be sure to
6. ## Math

The amount of money Kylie spends on food to the amount she spends on gas per week is 7:4. She spends \$45 more on food than gas. How much does she spend on food? How much does she send on gas? On one of the weeks, she spends an additional \$75 on food for a
7. ## dog behavior

please check my answer thanks In Pavlov's experiment with the bell and the food, what is the dependent variable A. Pairing the food and the bell B. giving the food C. ringing of the bell D. salivation I picked B
8. ## Language Arts Help!!

10 MS. SMITH: {glossing over his misbehavior and adopting a serious tone as she hands Jason a piece of paper} Yes, ok. So, tell me your plan for the project. Have you consulted this project list yet? You really need to quit putting this off. You're the
9. ## science

This year for my science fair project I will be testing to see if music affects a person's blood pressure. I will have a participant get relaxed (for 5 minutes). After he/she is relaxed, I will take his/her blood pressure with a digital sphygmomanometer
10. ## science

This year for my science fair project I will be testing to see if music affects a person's blood pressure. I will have a participant get relaxed (for 5 minutes). After he/she is relaxed, I will take his/her blood pressure with a digital sphygmomanometer

Can you please explain these two questions to me? Suppose the population size of a predator is given by P (x) = 0.006x2 + 0.005x, where x represents the population of its prey. If the population of the prey is 10,000 at the first of January and is reduced
12. ## Finance

Stone Inc. is evaluating a project with an initial cost of \$8,450. Cash inflows are expected to be \$1,000, \$1,000 and \$10,000 in the three years over which the project will produce cash flows. If the discount rate is 13%, what is the net present value of
13. ## algebra

The number of bacteria in a certain population increases according to a continuous growth model, with a growth rate parameter of 25% per hour. An initial sample is obtained from this population, and after six hours, the sample has grown to 7081 bacteria.
14. ## English

I'm pleased you are helping us again! I need you to revise a few sentences on my project since I varied them a little. Thank you very much for helping me again! 1) I wonder if you could help us find a school which is willing to join our partnership with

I am doing a science project on the "Effect of humidity on the hair of mammals?" that's my topic. Now my teacher wants me to make outline but first I have to make up questions on my topic..... Can you help me make up 2 questions for this topic? -Thanks a
16. ## Some research questions

I missed this week until today, and my science professor told me I have until tomorrow to do at least 50% of this project. Project: A 20 slide power point presentation over economy and environmental issues in Bolivia. Must include pictures, extra points
17. ## English

I left out the following sentences. Could you please check them? Thank you. 1.In the foreground I can see a group of young boys taking part in the Ten Tors Challenge. They are all wearing a backpack and a sleeping bag on their back and a yellow T-shirt
18. ## IT 221

As a project manager you are asked to facilitate a lessons learned session as part of the project termination process. how would you facilitate this session and what are some quidelines you would use? How would you incorporate and document the information
19. ## college algebra

23. In biology, the function defined by g(x)=5x/2+x gives the growth rate of a population for x units of available food. (Source: Smith, J. Maynard, Models in Ecology, Cambridge University Press.) (a) What amount of food (in appropriate units) would
20. ## social studies

your town or city is oing to have a culture fair. the fair will introduce people to new cultures. it will also introduce people to new cultures. it will also introduce people to diffferent culures within the United States. write a public service message
21. ## Early Childhood Education

Which of the following is NOT an example of a transition activity? A. Giving the children a 5-minute warning to alert them to upcoming changes. B. Having the children form a train with adults as the engine and caboose or with a dragon with head and tail C.
22. ## English

1. Which street food do you like most among (the) four street food(s)? - I like fruit sticks the most because they are delicious and nutritious. (Do we have to use the definite article? Do we have to use 'food' or 'foods' here?) 2. We have talked about
23. ## Budget

Your program has an RDT&E-funded project scheduled to start in January 2005 which is expected to take 16 months to complete. The project is expected to cost a total of \$16 million (then-year dollars), with cost expected to be incurred at a rate of \$1
24. ## Biology

According to my hypothesis, bacteria that lived millions of years ago communicated by their body language. The main problem with my hypothesis is that? 1 - it fails to explain the phrase body language 2 - it can't be disproved c - it may be false d - if
25. ## pre-calculus

Assume that the number of bacteria follows an exponential growth model: P(t)=P0ekt . The count in the bacteria culture was 900 after 20 minutes and 1600 after 30 minutes. (a) What was the initial size of the culture? (b) Find the population after 80
26. ## science

There are many drugs that aid our lives on a daily basis that are made/mass produced due to the assistance of bacteria. Can you give a few examples of such drugs and perhaps tell a little about the process?
27. ## Science

Humans developed antibiotics to fight bacterial infections. However, some antibiotics are no longer efective in killing the bacteria they once killed. How does the theory of evolution explain this?
28. ## Science

Label the following inherited or learned Sea turtle laying eggs on a beach=inherit Seal balancing a ball on its nose=learned Spider weaving a web=inherit Birds flying in a v-shape=learned Dogs rolling over= learned A lion returns to the same place everyday
29. ## English

I'm doing a Spanish assignment but theres no need for any spanish words, so i'll call it an English paper. I'm doing a research project on the dominican republics food and drink but idont know how to start off my 200 word essay that's due tomorrow o__o
30. ## science

Are bacteria one-celled or two-celled microbes?
31. ## managerial economics

Final Project A Final Project Is Due The Last Class Session. In Your Final Project, Describe And Answer In Economic Terms A Managerial Decision You Have Knowledge About (For Example One That Has To Be Made At Your Place Of Employment). Some Examples Essays
32. ## Analysis and Design

As a project manager, you are asked to facilitate a lessons learned session as part of the project termination process. How would you facilitate this session and what are some guidelines you would use? How would you incorporate and document the information
33. ## English

Scientists report (1) THAT CREATURES LIVING IN THE DEEP SEA ARE IN DANGER OF STARVING TO DEATH. Millions of undiscovered species live, in the deep sea. Creatures in the seabed are suffering from growing food shortages. Which may be a result of rising sea
34. ## English

I left out the following verbs. Thank you very much. 1) I'm capable of climbing over a wall. I'm nervous about having to write a maths test tomorrow. 2) My village is famous for growing (producing?) good wines. 3) He is responsible for letting the
35. ## Food Labels

5. The food label law is mandatory for the following foods: a. ready-to-eat foods at a bakery, deli, and/or candy store b. most food except meat and poultry*** c. medical foods d. coffee,tea and spice Thank You.
36. ## social studies

IN THE ELECTION OF 1912, Teddy Roosevelt's Bull Moose Party platform was built around what he called the a.fair deal b.square deal I think it's a fair deal but not sure
37. ## Social Studies

The leaders of the Virginia Company recruited more settlers and reorganized the colony. They allowed the new settlers to own land. Those settlers began to grow tobacco, a crop they learned about from the Indians. By 1612, Virginians were shipping tobacco
38. ## Math/Pre-calculus

Assume that the number of bacteria follows an exponential growth model: P(t)=P0e^k/t. The count in the bacteria culture was 400 after 10 minutes and 1500 after 35 minutes. (a) What was the initial size of the culture? (b) Find the population after 85
39. ## Science

1. How do plants survive? 2. What is photosynthesis? 3. What are needed in the food-making process of plants? 4. What are the parts of the leaf that help in food-making process of plants? 5. How do plants store energy?
40. ## Calculus

Suppose that the number of bacteria in a culture at time t is given by N = 4950 ( 28 + t*e ^(-t/24)) Find the LARGEST and SMALLEST number of bacteria in the culture during the time interval 0 ≤ t ≤ 140 .
41. ## Calculus

Suppose that the number of bacteria in a culture at time t is given by N = 4950 ( 28 + t*e ^(-t/24)) Find the LARGEST and SMALLEST number of bacteria in the culture during the time interval 0 ≤ t ≤ 140
42. ## Calculus

Suppose that the number of bacteria in a culture at time t is given by N = 4950 ( 28 + t*e ^(-t/24)) Find the LARGEST and SMALLEST number of bacteria in the culture during the time interval 0 ≤ t ≤ 140
43. ## math

A man budgets 2/5 of his pay on food and 2/7 on meat.What fraction of his pay is left ?
44. ## Math

a man spends 3/5 of his money in food and 1/4 of his money on clothes. if he has £47.40 left how much did he start with?
45. ## Math

Ravi spent 5/13 of his money on clothes,4/13 on food and 2/13 on entertainment.how much money was left with him?
46. ## MATH

Many years ago, a cruise liner sank in the middle of the Pacific Ocean. The survivors luckily landed on a remote desert island. There was enough food for the 220 people to eat once per day; this would make the food last for three weeks. Six days later a
47. ## science fair

Does multitasking help a person or mess up all tasks?(referring to human reaction) is there any way to make this topic more complex and difficult?
48. ## science

what must designers consider when planning a project?
49. ## science project

abbreviation for HOT
50. ## SCIENCE

PROJECT FILE ON POLLUTION
51. ## Science

What are some PQS' that I can give to a project right now?
52. ## English

"bacteria or germs" is a compound direct object after the gerund "controlling" which is the object of the preposition "of" Make sense? I hope you'll point out to your teacher that non-word that is serving as a direct object after the main verb "showed." =)
53. ## financ

All techniques with NPV profile- mutually exclusive projects. Projects A and B, of equal risk. Are alternatives for expanding Rosa Company’s capacity. The firm’s cost of capital is 13%. The cash flows for each project are shown in the following table.
54. ## finance

All techniques with NPV profile- mutually exclusive projects. Projects A and B, of equal risk. Are alternatives for expanding Rosa Company’s capacity. The firm’s cost of capital is 13%. The cash flows for each project are shown in the following table.
55. ## algebra

Suppose that the number of bacteria in a certain population increases according to a continuous exponential growth model, with a growth rate parameter of 11% per hour. Suppose also that a sample culture of 1000 bacteria is obtained from this population.
56. ## science

I have a test tomorrow and i need to be able to say what type of bacteria something is in their agar colonies. I am having a hard time diffirentiating between bacillus cereus and bacillus subtilis. does anyone have any good websites that would help? or
57. ## Math

Would you be more likely to get at least 70% tails if you flip a fair coin 10 times or if you flip a fair coin 1000 times? A) You would be more likely to get at least 70% tails if you flip a fair coin 10 times than if you flip a fair coin 1000 times. B)

What is food
59. ## English

I urgently need you to check the agenda again: Agenda of the Comenius project 1) 27 January 2012 Greeting of the principal of "... high school" (to the German and French schools) in the teachers' library. 9 pm -12pm Visit of the school (and its
60. ## economics

Consider a project with a positive rate of return. Suppose the discount factor solutions to the equation which determines the internal rate of return (ROR) of the project are given by 0.8502, 2.0207, -0.1767. What is the project's ROR?
61. ## Honors class language arts 6th grade

1 Print the words MUSIC FOR HALLOWEEN. 2 Double the middle letter. 3 Change the consonant that comes earliest in the alphabet to a D. 4 Change the second L from the left to a Y. 5 Move 1 H to the left of the row. 6 Delete all the E's and I's. 7 Switch the
62. ## Math

The game of dots is played by rolling a fair dice and receiving \$1 for each dot showing on the top face of the die. What cost should be set for each roll if the game is to be considered a fair game?
63. ## science hw

I cannot figure out this answer. It is confusing me a lot. I hate problems like this where all of the problems just switch beginnings and endings with each other. The combination of the sand and water makes for a ____________ _____________ because A)
64. ## Math

Kofi spent 2/3 of his pocket money on food and 1/6 of the remainder on transport. What fraction of his money is left?
65. ## Science/English

writeacher, I urgently need the help of a science expert to help me determine the possible scientific objectives (biochemical) of a project on biodiversity on water. What else can be included? The project is addressed to 16-year-old students with an
66. ## social stuides

The leaders of the Virginia Company recruited more settlers and reorganized the colony. They allowed the new settlers to own land. Those settlers began to grow tobacco, a crop they learned about from the Indians. By 1612, Virginians were shipping tobacco
67. ## Geography

Land use: What type of farming is suited to poorer soil, a short growing season, hillyland, and nearness to markets? The nation's largest inland port, situated at the junction of three rivers? The area which together with the coastal waters off Cape Cod,
68. ## Algebra

I'm having a problem solving the following example. The teacher wants it in this format. 1st the Verbal Model, 2nd the Labels 3rd Algebraic Model 4th- Solve and finally 5th part: Answer Question. Example: You are working on a scouting badge. You need 60
69. ## science

If a radioactive isotope has a half life of 10 years and you start with 100 grams what is the fraction left, percentage left, and amount of original in grams I would like for you to explain how to do it not tell me the answer that's the question
70. ## 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. this is my example Observation The trash smells.

I have a science project type of thing, I'm not asking for any answers. Just a breif and easier explanation on what to do, any help is appreciated. The length of a football field is 100 yards. When you compare geologic time (4.6 billion years) to the
72. ## science

I have two questions I need help with please. Thank you! 1)Mitochondria, the energy-processing organelles in eukaryotic cells, have their own DNA, separate from that of the cell’s nucleus. Which of the following choices best explains the presence of
73. ## Project Management

Now that the company offsite 2-day training session project is over, conduct a postmortem review. Submit a 1- to 2-page memo that does the following: • Details the benefits and drawbacks of a postmortem review • Lists who should partake in this
74. ## English

Here is the second part of the project I urgently need to prepare on biodiversity. Please, I don't know what else to include. What impact do you expect partnership activities to have on persons and on the participating institutions? 1) The project will
75. ## Biology/Chemistry

What kind of isomers can amino acids form? Which isomer is present in most living organisms? don't major compounds of living organisms consist of modifications of hydrocarbons Although D amino acids can be found in nature, only the L isomers are used to
76. ## Finance

Year Cash Flow 1 \$695,000 2 876,250 3 1,057,500 4 1,238,750 5 1,420,000 1. Calculate the IRR and NPV of this project utilizing a 12% discount rate and a 15% cap rate. Ms. Brown was able to secure a loan for \$1,540,000, and an equity investor agreed to
77. ## English

Slow Food vs. Fast Food Why is it better to buy local products for slow food? This is one of my bullets for an English essay.. I just need some guidance on how to set this up and main points.
78. ## MaTh WoRd PrObLeM

Many years ago, a cruise liner sank in the middle of the Pacific Ocean. The survivors luckily landed on a remote desert island. There was enough food for the 220 people to eat once per day; this would make the food last for three weeks. Six days later a
79. ## Social Studies

I have to do a project and I can't get motivated to start!! I want a good grade, but I don't know how to convince myself to get started!! PLEASE HELP!!!!!!! Sometimes motivation just doesn't come. You can't wait until you feel like doing it. I urge you to

Bacterial populations can grow to enormous numbers in a matter of a few hours with the right conditions. If a bacterial colony doubles size every 15 minutes, how many bacteria will be present after 1 hour if the colony began with 4 bacteria?
81. ## statistics

Water sample from 6 public swimming pools are combined for one test regarding bacteria level.Further testing is done if the combined test fails. Past results have shown that there is a 2% chance of unacceptably high bacteria level. Determine the
82. ## Biology

Please help !!!! two bacteria, "Claire" and "Bob" are infected with a virus. Claire explodes several hours later and Bob lives happily ever after.... until one day when Bob feels stressed out and all the sudden, explodes as well. What happened to bacteria
83. ## biology

The mouth, small intestine, and kidneys have functions that involve the a. digestion of food, synthesis of vitamins, and filtering of the blood. b. intake, digestion, absorption, and elimination of food and its wastes. c. secretion of bile, digestion of
84. ## science

i am doing a science project comparing human and animal fingerprints. I can't seem to find out if cats and dogs have identifyiable fingerprints. does anyone know? thanks http://www.wonderquest.com/Fingerprints.htm thanks lance. that helped!
85. ## political science

The Lilly Ledbetter Fair Pay Act was passed by President Obama in 2007 in order to address what issue?
86. ## BIOLOGY

What are some examples food web. What are some examples of food chains? Discuss the plants and animals that make up the food web immediately surrounding a school.
87. ## Finance

Thompson Stores is considering a project that has the following cash flow data. What is the project's IRR? Note that a project's projected IRR can be less than the WACC (and even negative), in which case it will be rejected. Year Cash Flow 0 (\$1,000) 1
88. ## English

Thank you very much for your corrections.Can you have a look at the following questions for me? Thank you. 1) What do you use to carry things that you need to wash with? (a sponge bag) What do you use to wash floors? (a mop) What do you use to pour water
89. ## Science

____ bacteria carry out the conversion of gaseous nitrogen to a biologically useful form of nitrogen. My answer is "nitrogen-fixing" (This is fill in the blank)
90. ## math

I need help with my science project and I am dealing with the heart
91. ## Physical science

Light project gr10
92. ## science

what are some of the cuases of overpopulation in Ethiopia The main cause is the food production has decreased dramatically decreased (govt sells food stocks to buy arms) and the GNP has greatly decreased due to the large non productive military.
93. ## science project

This is my first science can you tell me if I have my problem and hypothesis correct? The first time I sent it my hypothesis was wrong. PROBLEM: Does an increase in water temperature affect the velocity of ocean currents? HYPOTHESIS: Increases in heat with
94. ## FUNDAMENTALS OF BUSINESS MGMT

Your program has a proposed RDT&E-funded project scheduled to start in January 2015 which is expected to take 16 months to complete. The project is expected to cost a total of \$16 million (then-year dollars), with cost expected to be incurred at a rate of
95. ## Microbiology

Four questions ... 1) How can you account for the observation that a mass or colony of bacteria shows pigmentation while the individual cells have transparent cytoplasm? 2) What factors may alter the expression of the cultural characteristics of bacteria?
96. ## Microbiology

Four questions ... 1) How can you account for the observation that a mass or colony of bacteria shows pigmentation while the individual cells have transparent cytoplasm? 2) What factors may alter the expression of the cultural characteristics of bacteria?
97. ## science

the difference with growing alfalfa sprouts in soil and cotton buds and how come it grows faster and taller in the soil
98. ## Math

A fair charged \$2.50 admission for adults and a dollar for children. The receipts for 1 day were \$1951 on 1300 paid admissions. How many adults attended the fair that day?
99. ## college

You're thinking of investing in a automation project to reduce cost of production. -Investment in Fixed Assets: \$900,000 at t=0; salvage value of \$300,000 at t=6; straight line deprectiation over 6 years (assume book value is 0 at t=6) -Investement in NWC:
100. ## finite mathematics

A financier plans to invest up to \$2 million in three projects. She estimates that Project A will yield a return of 10% on her investment, Project B will yield a return of 15% on her investment, and Project C will yield a 20% return on her investment.