Biology Unit 1 NOS ppt#3 Metric System Notes Name:______
SI System of measurement:
In every measurement there is a
¨ ______followed by a
¨ ______from a measuring device
The number should also be as precise as the measurement
Use SI units — Standard Units of measurement based on the metric system
Length ______
Mass_______
Volume______
Time______
Temperature______
Learning Check:
Match L) length M) mass V) volume
____ A. A bag of tomatoes is 4.6 kg.
____ B. A person is 2.0 m tall.
____ C. A medication contains 0.50 g Aspirin.
____ D. A bottle contains 1.5 L of water.
What are some U.S. units that are used to measure each of the following?
A. length
B. volume
C. weight
D. temperature
Mass=______
Weight=______
What is the difference between mass and weight?______
Metric System: International system of measurement based on powers of 10.
Kilo = ______
1 kilometer (____) = ______
Centi = ______
1 meter (____) = ______
1 dollar = ______
Milli= ______
1 liter (___) = ______
How do you use the “ladder” method?
1st – Determine your ______.
2nd – Count the “______” to your ______.
3rd – ______.
Example: 4 km = ______m
Practice:
1000 mg = ______g 1 L = ______mL 160 cm = ______mm
14 km = ______m 109 g = ______kg 250 m = ______km
Compare using <, >, or =.
56 cm 6 m 7 g 698 mg
Learning Check:
1. 1000 m = 1 ___ a) mm b) km c) dm
2. 0.001 g = 1 ___ a) mg b) kg c) dg
3. 0.1 L = 1 ___ a) mL b) cL c) dL
4. 0.01 m = 1 ___ a) mm b) cm c) dm
Units of Length Practice:
_____? kilometer (km) = 500 meters (m)
2.5 meter (m) = ______? centimeters (cm)
1 centimeter (cm) =_____ ? millimeter (mm)
1 nanometer (nm) = 1.0 x 10-9 meter True or False?
Please answer Metric Conversion Challenge problems (from the ppt) on a separate piece of paper. Remember to use the chart above to help you.
Write a ½ page summary of learning and highlight vocabulary within your summary.