1. In an experiment where you were trying to determine which shower head (the pa

Question

1. In an experiment where you were trying to determine which shower head (the part of the shower from which the water comes) saved the most water, variance in the amount of water delivered over some constant time interval (i.e. 1 minute) would be the ______________ for such an experiment.

A. Experimental constant

B. Mean

C. Dependent variable

2. Which of the following would NOT provide the most accurate measurement for a specific mass or volume?

A. triple beam balance

B. graduated cylinder

C. 6cm pipet

D. pipet

3. Which piece of equipment would be the best to use to get an estimate of the amount of water used when you take a shower?

A. triple beam balance

B. 1,000 ml flask

C. 500 ml beaker

D. Petri dish without its top in place

4. To measure a small volume of fluid, such as 5 ml, which piece of equipment would be the most likely one to use?

A. 500 ml beaker

B. an uncalibrated 2 ml dropper

C. pipet

D. 100 ml graduated cylinder

5. Which might be used to culture (grow) microorganisms?

A. Petri dish

B. graduated cylinder

C. beaker

D. 2 ml dropper

6. In making a salt solution, by adding a certain amount of salt to water, it would be best to mix the solution in a:

A. Beaker

B. pipet

C. graduated cylinder

D. Petri dish

7. Which of the following would be the most difficult in determining the volume of a fluid?

A. graduated cylinder

B. beaker

C. pipet

D. triple beam balance

Explanation / Answer

1) (C) Dependant variable

2) (D) pipet

3) (C) 500mL beaker

4) (C) Pipet

5) (A) Petri dish

6) (A) Beaker

7) (D) triple beam balance

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