Unit 1 Review

A testable explanation to a problem that has not yet been tested. 

• data
• theory
• hypothesis
• fact

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

• scientific method
• recipe
• data collection
• metric system

Is the following statement qualitative or quantitative? There are 16 red marbles in the bag.

• Qualitative

• Quantitative

• Both

• Neither

Is the following statement qualitative or quantitative? The plant has grown 4 cm since yesterday.

• Qualitative

• Quantitative

• Both

• Neither

Is the following statement qualitative or quantitative? The leaves on the plant are turning brown.

• Qualitative

• Quantitative

• Both

• Neither

This part of the experiment serves as a basis of comparison; the one variable being tested has been omitted. 

• experimental group
• control group
• data
• variables

This variable in an experiment is the one being deliberately changed by the scientist. 

• dependent variable
• independent variable
• data
• control group

Which type of data involves numbers that are obtained by counting or measuring?

• quantitative
• qualitative

Which type of data involves descriptions that cannot be counted or measured?

• qualitative
• quantitative

An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid: water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, the independent variable is ...

• The type of plant
• The amount of sunlight
• The type of music
• The type of liquid