Unit 0 Test

Evaluating observations and data to reach a conclusion.

• Classifying

• Analyzing

• Investigating

• Making models

1. Creating representations of complex objects or processes.

• Classifying

• Analyzing

• Investigating

• Making models

The pendulum lab you learned which variable controls the speed of the pendulum?

• Length

• Mass

• Drop

• All of these

With which of the following statements would most scientists likely agree?

• Calling evolution a theory is considered offensive by most scientists.

• Scientific language is rarely understood by even the most experienced scientists.

• . Facts and observations don’t have much to do with each other

• To understand and discuss science, a common vocabulary is important.

Scientific Investigations begin with a ________.

• Problem

• Hypothesis

• Collecting and analyzing data

• Drawing conclusions

What is the independent/test variable on this graph?

• Volume

• Pressure

• Cannot be determined

• Both Volume and Pressure

Which of the following is NOT true about scientific theories?

• It is an idea on how to explain a natural phenomenon

• It is well tested explanation of natural phenomenon

• It is based on a wide range of observations and experiments

• Can be changed with new evidence

Newton’s law of universal gravitation _____.

• explains why an object falls to the ground when it is dropped

• is an observation Sir Isaac Newton made in 1687

• allows us to calculate how two objects will attract each other

• is actually a theory that has been incorrectly named

Krabb Patty Power 

Mr. Krabbs wants to make Bikini Bottoms a nicer place to live.  He has created a new sauce that he thinks will reduce the production of body gas associated with eating krabby patties from the Krusty Krabb.  He recruits 100 customers with a history of gas problems.  He has 50 of them (Group A) eat krabby patties with the new sauce.  The other 50 (Group B) eat krabby patties with sauce that looks just like new sauce but is really just a mixture of mayonnaise and food coloring.  Both groups were told that they were getting the sauce that would reduce gas production.  Two hours after eating the krabby patties, 30 customers in group A reported having fewer gas problems and 8 customers in group B reported having fewer gas problems.

Which people are in the control group?

• Group A

• Group B

• Both groups

• Nether group

Krabb Patty Power 

Mr. Krabbs wants to make Bikini Bottoms a nicer place to live.  He has created a new sauce that he thinks will reduce the production of body gas associated with eating krabby patties from the Krusty Krabb.  He recruits 100 customers with a history of gas problems.  He has 50 of them (Group A) eat krabby patties with the new sauce.  The other 50 (Group B) eat krabby patties with sauce that looks just like new sauce but is really just a mixture of mayonnaise and food coloring.  Both groups were told that they were getting the sauce that would reduce gas production.  Two hours after eating the krabby patties, 30 customers in group A reported having fewer gas problems and 8 customers in group B reported having fewer gas problems.

What is the independent variable?

• Group A

• Group B

• New Sauce

• gas production