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Scientific method review 1 Flashcards | StudBud
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Scientific method review 1
Scientific method review 1
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Scientific method review 1
Flashcards
27 cards
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Practice quiz
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Questions
27
Answers
1
The freezing point on the Celsius temperature scale is _____ degrees.
•32
•212
•100
•0
2
Which of the following would affect the precision of a ruler?
Reading the ruler at a different time of day
The size of the increment of measure
The length of the ruler
Reading the ruler at an angle
3
What is the most precise volume of liquid shown in the figure?
65
65.1
66
66.1
4
Which piece of equipment would be used to measure the mass of one slice of bread?
•Triple beam balance
•Meter stick
•Graduated cylinder
•Spring scale
5
Which can NOT be used to measure volume?
Pipette
Graduated cylinder
Thermometer
Erlenmeyer flask
6
The amount of matter in an object is known as
Weight
Volume
Temperature
Mass
7
The proper way to carry a microscope is by the
base
by the cord
arm
arm and base
8
What happens to the field of view when you increase magnification?
•Field of view remains the same
•Field of view decreases
•Field of view increases, then decreases
•Field of view increases
9
In the metric system, the base unit of length is the
liter
meter
foot
gram
10
What is the purpose of the diaphragm on a light microscope?
It allows the amount of light to be adjusted.
It provides a larger field of view.
It allows better focusing.
a.It makes the microscope more stable on an uneven surface.
11
To observe a small living organism, a scientist might use a
Bunsen burner
Electronic balance
Compound light microscope
Graduated cylinder
12
Which will give the MOST accurate and precise measurement of 8 mL of liquid
A 10 mL graduated cylinder marked tenths of a mL increments
A 50 mL Erlenmeyer flask marked in 10 mL increments
A 10 mL beaker marked in 5 mL increments
A 25 mL graduated cylinder marked in mL increments
13
Why did Alison view microscopic organisms from pond water on low power instead of high power?
The organisms are in sharper focus.
The smaller organisms can be seen easier.
She can see more organisms at one time.
The organisms appear larger.
14
What tool would make the most accurate measurement of 0.5 mL of hydrogen peroxide?
200 mL Erlenmeyer flask
50 mL beaker
2 mL pipette
10 mL test tube
15
A student makes a slide of rodent red blood cells. How should the student dispose of the slide?
Put it in the biohazards container
Put it in the trash can
Put it in the broken glass container
Wipe it clean to be reused
16
A label is shown below on a solution. What does this symbol indicate?
it's radioactive
it's acidic
it's flammable
it's toxic
17
When on high-power objective on a microscope, what should you use to bring the view into focus?
First the coarse adjustment knob, then the fine adjustment
Only the coarse adjustment knob
Only the diaphragm
Only the fine adjustment knob
18
An instrument light passes through a specimen and uses two lenses to form an image is a(n)
Compound light microscope
Innoculating loop
Pipet
Electron microscope
19
The metric base unit for volume is the
Meter
Ounce
Liter
Gram
20
What should you do after lab in case you come into contact with organisms you cannot see?
Open the windows of the laboratory
Read over your activity
Do not wear long sleeves
Wash your hands thoroughly
21
Which piece of laboratory equipment is most appropriate to heat 300 mL of water?
A 500 mL burette
A 500 mL beaker
A 500 mL syringe
A 500 mL graduated cylinder
22
A student finds an unlabeled bottle of an amber-colored solution. What should the student do?
Inform the teacher about the bottle.
Pour the solution from the bottle down the drain.
Move the bottle to a safe place, so that it is out of reach.
Place the bottle on the supply table.
23
On the Celsius temperature scale, how many degrees between the freezing and boiling water
212
1000
68
100
24
Which is NOT a unit of measurement in the metric system?
•Meter
•Gram
•Inch
•Liter
25
The basic unit of mass in the metric system is the
Meter
Gram
Liter
Ounce
26
What is the BEST procedure for removing a hot test tube from a hot water bath?
When the test tube is cool, pick it up with your hands
Use tongs to pick it up by the rim
Use a test tube clamp around the body of the tube
Use a wet towel or cloth
27
Which of the following measures of how fast or slow the molecules in a substance are moving?
Temperature
Weight
Mass
Volume
