8/19 daily catalyst
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8/19 Daily Catalyst. In a study, 4 canisters that were 700 L each where heated to 4 different temperatures. As the temperatures increased, the amount of ammonia produced in the canisters decreased. 1. What was the constant variable? 2. Is this an example of a positive or negative relationship? - PowerPoint PPT PresentationTRANSCRIPT
Kayla plant two elodea plants in two separate pots. Both receive the same amount of sunlight and water. One plant is watered with water (pH=9) and the other plant is watered with water (pH= 2). The height of the plants are measured over a month.
1. What is the IV variable? 2. What is the DV variable? 3. What are the constant variables? 4. Generate a possible title for the graph to the right:
1/20 Daily Catalyst Pg. 6 Conversions
Kayla plant two elodea plants in two separate pots. Both receive the same amount of sunlight and water. One plant is watered with water (pH=9) and the other plant is watered with water (pH= 2). The height of the plants are measured over a month.
1. What is the IV variable? Acid water (pH=2) and basic water (pH=9) 2. What is the DV variable? Height 3. What are the constant variables? Sunlight and amount of water 4. Generate a possible title for the graph to the right: People’s favorite Skittle flavors.
1/20 Daily Catalyst Pg. 6 Conversions
Syllabus contract is overdue and needs to be turned in Unit Test #1 on Friday Quiz #2 data:
Make-up’s today at lunch
1/20 Daily Catalyst Pg. 6 Conversions
Average Top Scorers:1st Period 1.93 Tashtoni, Rilda,
Odalys, Christian
2nd Period 2.11 Brian, Eva, Amani, Wyatt, Chase, Kayla, Daniel V.
Daily Catalyst Class Business Conversion notes Conversion practice Exit Ticket #3
1/20 Daily Catalyst Pg. 6 Conversions
Today, we will be able to utilize mathematics, organizational tools, and graphing skills to solve problems and
interpret data.
1/20 Daily Objective
Scientists throughout the world use the metric system to make measurements. The metric system is also used in everyday life virtually everywhere except the United States.
Can you think of an exception?
Conversions in Biology
Metric units commonly used in biology include:
Key Points #1: Common Units meter (m)—length liter (L)—volume kilogram (kg)—mass degree Celsius (C)—temperature
Metric System
Unlike the English system with which you are already familiar, the metric system is based
on units of ten.
What else is based on the unit of ten system?
Metric System
We convert between units depending on what we are measuring.
Conversions
Key Point #2: Decimal Placement
Decimal Placement
Decimal Placement
Metric Conversions Ladder Method
KILO1000Units
HECTO100
UnitsDEKA
10Units
DECI0.1
UnitCENTI
0.01Unit
MILLI0.001Unit
MetersLitersGrams
Ladder Method
How do you use the “ladder” method? 1st – Determine your starting point.
2nd – Count the “jumps” to your ending point.
3rd – Move the decimal the same number of jumps in the same direction.
4 km = _________ m
12
3
How many jumps does it take?
Starting Point Ending Point
4.1
__.2
__.3
__. = 4000 m
KILO1000Units
HECTO100
UnitsDEKA
10Units
DECI0.1
UnitCENTI
0.01Unit
MILLI0.001Unit
MetersLitersGrams
Ladder Method
How do you use the “ladder” method? 1st – Determine your starting point.
2nd – Count the “jumps” to your ending point.
3rd – Move the decimal the same number of jumps in the same direction.
.54 cm = _________ Dm
12
3
How many jumps does it take?
Starting Point Ending Point
4.3
__.2
__.1
__. = .00054 Dm
How many hecta grams (Hg) are in 10 grams? 10.0 grams .10 Hg How many grams are in 28 milligrams (mg)? 28.0 mg .0280 g How many centimeters are in 9.23 meters 9.23 m 923.0 cm
Ladder Method
1
1000.0
160014000.109.250
.567000.0
.00024
20000o
250000.016.0.016
1000000.0
Why is it important for all scientists to use a standard system of measures rather than the system that may be
most popular in their home country or region?
Turn and talk
Part of science is converting numbers from one set of units
into another set of units.
Conversions
Conversions
Convert 7 gallons into quarts (1 gallon = 4 quarts) 7 gallons x 4 quarts =
Which is faster, 27 miles/hour or 13.2 meters/second? (40 inches = 1 meter and 5280 feet = 1 mile)
27 miles X 5280 feet X 12 inches X 1 meter = 42,768 m/hour
42,768 meters X 1 hour X 1 minute = 11.88 meters/sec
Conversions Example #1
1 gallons
28 quarts
hour 1 mile 1 foot 40 inches
hour 60 minutes
60 seconds
Convert 66 ft/sec into miles/hour (5280 feet = 1 mile)
66ft/sec X 1 mile/5280 ft X 1 min/60 sec X 1 hour/60 min =
.00000347 miles/hour
Conversions #2
Directions: Complete the conversions worksheet. This is homework and is due tomorrow in the basket.
Noise: 1 (with partner)
Time: Until 8:36/10:50
Conversions HW
Name: _____________ Date: 1/20 Period: _____ Answer the following questions. (worth 1 pt.
each)
1. What is the abbreviation for Kilogram: __________
2. 77 kg = __________g 3. 320 m = _________Hm 4. 88.7 cm = _______ mm
Exit Ticket #3 Conversions