Scientific Method & Science as a Tool - Missed Questions

Squidward found new reed sizes to try out for his clarinet. He used an APPLAUSOMETER to measure applause after playing Under the Sea with each different reed size. The results were put in the table.

What was the independent variable?

• The Song length

• The Reed size

• The Applause level

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. Which of the following is NOT held constant?

• Type of plant

• Type of liquid

• Type of soil

• Amount of sunlight

If the students study longer for my scientific method test, then they will have a better test score. What is the independent variable?

• Scientific Method

• Time spent studying

• The students

• Test score

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

• data
• theory
• hypothesis
• fact

In a controlled experiment, how many variables can be worked with at a time? 

• one
• none
• two or more
• how ever many makes sense.

Which of the following statements is an inference about the picture

• The vase is broken.
• The girls' bow is blue and purple.
• The girl broke the vase.
• The girl has blonde hair.

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

• dependent variable
• independent variable
• data
• control group

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, what is the dependent variable?

• Type of plant

• Water, apple juice, milk

• Plant growth

• Color of the plant's leaves