Chemistry, 13.11.2020 16:30 izzyp619

For her science project, Paula wants to determine if the growth of bacteria in standing rainwater changes over time. She collects rainwater and distributes it evenly in 6 jars and places them all indoors in a spot that does not receive a lot of sunlight to limit evaporation. Using a bacteria testing kit, she measures the bacteria in the water in the first jar on the 5th day, second jar on the 7th day, third jar on the 9th day, fourth jar on the 14th day, fifth jar on the 20th day, and sixth jar on the 24th day. What is the independent or manipulated variable in Paula's experiment?

Answers: 3

Show answers

Another question on Chemistry

Chemistry, 21.06.2019 22:30

How many moles are in 250 grams of tungsten (w)? * 4.4x10^23 moles 4.2x10^23 moles 0.7 moles 1.4 moles

Answers: 3

Answer

Chemistry, 22.06.2019 02:00

What is the maximum number of electrons that an atomic orbital can contain?

Answers: 1

Answer

Chemistry, 22.06.2019 13:00

Tell me the iupac names of the following alcohols:

Answers: 2

Answer

Chemistry, 22.06.2019 19:30

Estimate the molar mass of the gas that effuses at 1.6 times the effusion rate of carbon dioxide.

Answers: 1

Answer

You know the right answer?

For her science project, Paula wants to determine if the growth of bacteria in standing rainwater ch...

Questions

English, 15.12.2020 04:30

Help help help help (easy doing for fun) ...

Social Studies, 15.12.2020 04:30

¿Que no te gusta de la formación humana?...

Mathematics, 15.12.2020 04:30

Ashlee purchases gifts for three friends. She chooses a book for $12.80 and then finds two identical necklaces. Her budget is is $48.00 before tax. Wh...

History, 15.12.2020 04:30

Please help will give points In the submission box below, list three opinions you have about the content in the excerpt of Fast Food Nation you read....

English, 15.12.2020 04:30

What does this excerpt suggest about the ancient Greeks’ attitude toward the gods? A. They regarded some gods as helpful to humans and others as indif...

English, 15.12.2020 04:30

Commonlit: A present for Mrs. Robertson, How does Mrs. Robertson’s note to María Elisa develop the theme of the passage?...

Biology, 15.12.2020 04:30

Select the correct answer. The right hemisphere of the brain: A. Controls movement on the right side of the body B. coordinates reading,...

Chemistry, 15.12.2020 04:30

Write the steps to solve the following: 1. Convert 2.75 g Na to moles Na. 2. Convert 4.7 moles H2O to grams H20. 3. Convert 1.18 x 10 26...

Business, 15.12.2020 04:30

Recently us dairies struggling to increase milk sale tried to change the way adults thought about chocolate milk the dairies wanted to....

Mathematics, 15.12.2020 04:30

Darnell goes to the movies with his friends. The receipt on his phone shows the cost of the tickets after a discount. a. Write an equation to r...

English, 15.12.2020 04:30

I'm sad...TT~TT Anyone wanna talk...

Mathematics, 15.12.2020 04:30

When factoring it is important to multiply the binomials out to check your answer. Group of answer choices True False...

Mathematics, 15.12.2020 04:30

Please help me I'm trying to pull my grade up Why does the equation 9−2x−9−16x=−14x−7−4x−11 have no solutions?A) because if you add 18x t...

Social Studies, 15.12.2020 04:30

Can you help because it is very urgent...

Mathematics, 15.12.2020 04:30

Please help can't figure this out Answer choices are[5,10][0,7][0,9][6,12][4,7][0,6]

Mathematics, 15.12.2020 04:30

Mr. Mole left his burrow that lies 7 77 meters below the ground and started digging his way deeper into the ground, descending at a constant ra...

Mathematics, 15.12.2020 04:30

What is the solutionn of the equation w-2=-3...

Health, 15.12.2020 04:30

As an employee, who is supposed to provide training on the chemicals you are handling or come in contact with at work? Select the best option. Distri...

History, 15.12.2020 04:30

If two predominantly Catholic nations had a conflict today, just as Spain and Portugal did during the 15th century, do you think the pope would interv...

Computers and Technology, 15.12.2020 04:30

4.3.7: Positive, Zero, or Negative - Codehs. Question/Test Case:Write a program that asks the user for a number. Report whether that number is...

More questions: Chemistry Another questions