Nature of Science

Justin blows his nose, but mucus seems to leak through the tissue.  He decides to test which tissue holds up the best while sneezing.  What is the independent variable?

• sneezing
• Justin
• amount of tissue
• type of tissue

The variable in the experiment that is the outcome that you measure is called:

• Control
• Dependent
• Independent
• Hypothesis

A series of steps used by scientists to solve a problem or answer a question. 

• scientific method
• recipe
• data collection
• metric system

Tags

NGSS.MS-ESS2-5

What is a hypothesis?

• A hypothesis is the right answer to an experiment.
• A hypothesis is the wrong answer to an experiment.
• A hypothesis is an educated guess.
• I don't know.

What is the part of the experiment that is left alone or “natural", and is used to compare back to?

• Independent Variable
• Dependent Variable
• Control Group
• Experimental Group 

In this graph, what is the dependent variable? 

• Walla Walla Island
• Time
• Number of Deer

How many independent variables should be tested at a time in a scientific investigation?

• none
• one
• two
• three

Tags

NGSS.MS-PS2-2

You are a scientist studying the organisms in a forest.  You notice that the number of wildflowers has gone down while the acidity of the soil has increased.  You decide to create an experiment to investigate.  What is your variable?

• number of wildflowers
• acidity of soil
• the local factory

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Four cows were given different types of cow feed. One cow was given the orginal type of feed. After two weeks, the daily amount of milk given by each cow was recorded. What is the dependent variable?

• Types of feed
• the amount of milk produced

Four cows were given different types of cow feed. One cow was given the orginal type of feed, the rest were given the different types of feed. After two weeks, the daily amount of milk given by each cow was recorded. What is the experimental group?

• The cows given the different types of feed
• the amount of milk produced

Tags

NGSS.MS-LS2-1