Observation vs. Inference
Graphing Relationships
Density
Rate of Change
100
Which statement about a cumulus cloud seen over Syracuse, N.Y., is an inference? 1) The cloud appears white. 2) The cloud has an irregular shape. 3) The cloud formed over Lake Ontario. 4) The base of the cloud is determined to be 2.6 km above the ground.
The cloud formed over Lake Ontario
100
What is the name of the graphic relationship when: one variable increases and the other variables also increases?
Direct relationship
100
How do you draw the density triangle?
100
Which graph shows the greatest rate of change? LEFT or RIGHT?
RIGHT
200
Using a ruler to measure the length of a stick is an example of: 1) extending the sense of sight by using an instrument 2) calculating the percent of error by using a proportion 3) measuring the rate of change of the stick by making inferences 4) predicting the length of the stick by guessing
1) Extending the sense of sight by using an instrument
200
Which type of graph shows a pattern that is predictable?
Cyclic graph
200
5.0 g/cm3
200
What is the equation for rate of change?
change in value divided by time
300
While on a field trip to a large lake in New York State, an observer recorded four statements about this lake. Which of these statements is most likely an inference? 1) The lake was formed by a melted glacier. 2) The water is clear enough to see the bottom of the lake. 3) A log is floating in the lake. 4) The surface temperature of the lake is 18.5°C.
1) The lake was formed by a melted glacier.
300
When temperature increases, density decreases. What type of relationship is this?
Indirect OR inverse
300
If a material is put under INCREASED pressure, the density of the material will...
Increase
300
A glacier advanced down a mountain from an elevation of 2010 meters to 1780 meters in 5 years. What was the glaciers rate of change?
46 meters / year
400
An interpretation based upon an observation is called 1) a fact 2) an inference 3) a classification 4) a measurement
2) an inference
400
400
D
400
At 7:00 a.m., the air pressure was 1,012 millibars. By 11:00 a.m., the air pressure had dropped to 1,004 millibars. What was the rate of change in the air pressure?
2 millibars / hr
500
Which statement about a burning candle is most likely an inference? 1) Carbon dioxide and water vapor are produced by the burning. 2) The wick gets shorter as the candle burns. 3) The candle wax is melting. 4) The flame is yellow.
1) carbon dioxide and water vapor are produced by the burning
500
An observer recorded the times of three consecutive high tides at one location as: 7:12 am, 7:38 pm, and 8:04 am. What was the time of the next high tide?
8:30 pm
500
What is the mass of this block?
32 g
500
A student’s grade goes from a 95% to a 60% in 5 weeks because they were lazy on their lab assignments (this can happen to all of you in this class right now if you slack off!) Calculate the student’s rate of grade change.
7% / week