Unit 1 Test-Scientific Method

Two jars are placed on a counter with a McDonald’s French fry inside.  One has a lid, the other does not.  They are left alone to see which one decays faster.  After two days, the fry in the closed jar looks fresher.

What is the independent variable?

• The type of Jar used

• The type of french fry used

• Whether or not the jar has a lid

• The freshness of the French fry

A Quantitative observation involves ________ while a Qualitative observation looks at _________.

• Measuring; Characteristics

• Characteristics; Measuring

• Quarries; Linguistics

• Linguistics; Quarries

What type of graph would best show changes over time?

• Double bar graph

• Pie chart

• Bar graph

• Line graph

Two jars are placed on a counter with a McDonald’s French fry inside.  One has a lid, the other does not.  They are left alone to see which one decays faster.  After two days, the fry in the closed jar looks fresher.

What are the controls?

• The type of jars, type of fries, when the fries were made

• Whether or not the jar has a lid

• How long the fries are in the jar

• The freshness of the French fries

Two jars are placed on a counter with a McDonald’s French fry inside.  One has a lid, the other does not.  They are left alone to see which one decays faster.  After two days, the fry in the closed jar looks fresher.

What is the dependent variable?

• Whether or not the jar has a lid

• The freshness of the French fry

• The type of Jar used

• The type of french fry used

Which is an observation about the plant pictured?

• The plant is photosynthesizing

• The plant’s flowers attract hummingbirds

• The plant is in acidic soil

• The plant has 6 leaves

Tags

NGSS.MS-LS1-4

NGSS.MS-LS1-6

Which variable belongs on the Y axis?

• Control Variable

• Independent Variable

• Dependent Variable

• Constant Variable

1. Which of the following is an OBJECTIVE observation?

• 1. Chocolate ice cream is the best.

• 1. I think dogs are the most obedient pets.

• 1. The new iPhone app opens in less than a second.

• 1. That house they are building is so pretty.

If I ride my bike to school instead of walking, then I will get to school faster. What is the dependent variable?

• True

• How fast you get to school

• Riding a bike or walking

• False

If I floss more, then I will have fewer cavities. What is the independent variable?

• Number of Cavities

• Amount of Brushing

• Type of Floss Used

• Amount of Flossing