LABORATORY EXAM

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The interconversions between standard units and derived units in the metric system are based on a factor of

10

What should your hypothesis represent?

A possible explanation for a problem or observation

Which type of appendage is used by the pillbug to collect sensory information about its environment?

Antennae

Why is it important to line up your eye parallel to the height of the liquid in a graduated cylinder when measuring volume?

To accurately line up the meniscus with the scale of units

Which of the following should occur at 100 degrees Celsius?

Water boils

Which question can you ask yourself to determine the dependent variable of an experiment?

What will I measure?

Which question can you ask yourself to determine the independent variable of an experiment?

What will I vary?

What should be used to clean the slide and lens after viewing under oil immersion?

Lens paper

Eukaryotic cells such as yeast and human body cells are generally __________ bacterial cells.

*

A wooden block weighs 1923 mg and therefore, it weighs _______ grams

*192.3

Which part of the microscope will be used first to adjust the focus when starting with the lowest power lens?

*Fine focus adjustment knob

Why is it important to use the tare function when weighing an object on paper or in a beaker?

*It gives you the appropriate units of weight

Where are the pillbug's organs of smell and taste?

*On the uropods

Which of the following is desirable when comparing whether an animal prefers one substance as food versus another substance as food?

*The control substance has the same state as the experimental substance (e.g. liquid compared to liquid).

Suppose your hypothesis is: " Braking distance grows linearly with speed", What is the dependent variable?

*speed

Which prefix added to the base unit means 1/100 of a meter?

Centi


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