date: september 22, 2015 aim #8: how do scientists make detailed measurements? hw: 1) complete...
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Date: September 22, 2015
Aim #8: How do scientists make detailed measurements?
HW:1) Complete packet page 192) Rainbow Lab due Thursday3) Textbook HW #3 (Section 1-4) due Friday 9/254) QUIZ- Graphing Thursday/Friday (day of double
period)
Do Now: Warm-Up Notebook
Date Title of Activity Page #9/22 Metric Conversions17
1. How can wemake more detailed observations?
Use instruments to measure things… Quantitative observations
2. SI= International System of Units (The Metric System)Measure Definition Unit(s) Symbol(s) Instrument(s)
Distance Length, width, height Meter m
Mass The amount of stuff Gram g
Liquid Volume
The amount of space it takes
Liter L
Temperature How hot or cold something is
Degrees Celsius
C
Time How long it takes Seconds S
Ruler
Graduated
Cylinder
Thermometer
Stopwatch
Balance
Metric Ruler
3. Measuring Length A B C
Point A= _____ cm or _____ mm
Point B= _____ cm or _____ mm
Point C= _____ cm or _____ mm
1.5 15
7.2 72
10.3 103
cm
What is the distance between A and B?
72mm-15mm = 57 mm
4. How do we measure volume of a liquid? Always measure volume
from the bottom of the meniscus!
How many mL of liquid are in this graduated cylinder?
11 ml
5. How do we measure temperature?Celsius Thermometer
Important temperatures to know:
•0˚C- Water freezes•20 ˚C- Room Temperature•37 ˚C- Normal Body Temperature•100 ˚C- Water Boils
6. How do we measure with a triple beam balance?
Place all markers to zero.(The pointer should be lined up with zero.)
Place object on the plate and move markers until the pointer lines up with zero again.
Read markings on slider scale (add values together).
