Competency 25: Safe & Proper Lab Processes

Question 1

Graduated Cylinder

Answer 1

Long container for measuring volume. Read the # which the bottom most part of the meniscus is touching, while keeping eye level.

Question 2

Balance or scale

Answer 2

Used for measuring weight and determining mass.

Question 3

Pipette

Answer 3

Used to transfer certain volume of liquid

Question 4

Microscope

Answer 4

Used to view small objects

Question 5

Bunsen Burner

Answer 5

Creates flame used for heating and sterilization

Question 6

Test Tubes

Answer 6

Containers which hold liquid and in which chemicals can be mixed.

Question 7

Hot Plates

Answer 7

Used to heat objects

Question 8

Beakers & Flasks

Answer 8

Used to contain liquids

Question 9

Chart

Answer 9

Way of representing information pictorially

Question 10

Table

Answer 10

Organizes #s and info into columns and rows.

Question 11

Graph

Answer 11

Type of chart which has x and y axis used to represent the relationship between variables.

Question 12

Diagram

Answer 12

Pictorial representation such as a drawing.

Question 13

Seven SI base units

Answer 13

1) Meters: Distance
2) Kilograms: Mas
3) Seconds: Time
4) Amperes: Electric current
5) Kelvin: Temp
6) Mole: Amount of Substance
7) Candela: Intensity of Light

Question 14

Metric System

Answer 14

Numerical system of choice for scientists. Based on powers of 10
Milli-0.0001
Centi-0.01
Deci-0.1
Deka- 10
Hecto- 100
Kilo-1000

Question 15

Standard unit of length in Metric system

Answer 15

Meter

Question 16

Other units of length

Answer 16

1 millimeter=0.001 meter
1 centimeter=0.01 meter
1 decimeter=0.1 meter
1 kilometer=1000 meters

Question 17

Standard unit of volume in metric system

Answer 17

Liter

Question 18

Other units of volume

Answer 18

1 Liter=1000 cubic centimeters
1 milliliter=0.001 liter
1 centilieter=0.01 liter
1 deciliter=0.1 liter
1 kiloliter=1000 liters

Question 19

Standard unit of mass in metric system

Answer 19

Gram

Question 20

Other units of mass

Answer 20

1 milligram=0.001 gram