Nature of Science and Variables Review Questions

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

• data
• theory
• hypothesis
• fact

A broad and comprehensive statement of what is thought to be true; it is supported by much evidence.

• hypothesis
• theory
• guess
• fact

A students was doing an experiment using the scientific method. Every three days the student plans to count the green leaves. Which would be a good hypothesis for this experiment?

• If plants are placed in direct sunlight, then they will grow more green leaves.

• If plants are places in bright light, then they will grow more green leaves than in dim light.

• If plants are place in clay pots, then they will grow more green leaves than plastic pots.

• If plants are in warmer temperatures, then they will grow more green leaves.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS1-6

Which of the following is NOT a rule when writing a hypothesis?

• It is testable

• It is an if/then statement

• it should restate the question

• It is a prediction.

In an experiment, the one variable that is changed is called the

• dependent variable

• independent variable

• experimental variable

• controlled variable

Tags

NGSS.MS-PS2-2

In an experiment, the factor that we measure is called the

• independent variable

• dependent variable

• conclusion

• controlled variable

Tags

NGSS.MS-PS2-2

A scientist hypothesizes the the temperature at which an alligator's egg is incubated will determine whether the alligator will be male or female. The independent variable is

• the male alligators

• the gender of the alligator

• the temperature

• the incubator

Tags

NGSS.MS-LS1-5

A scientist hypothesizes the the temperature at which an alligator's egg is incubated will determine whether the alligator will be male or female. The dependent variable is

• the temperature

• the size of the baby alligators

• the incubator

• the gender of the baby alligators

Tags

NGSS.MS-LS1-5

There are two types of data. Which type of data involves numbers that are obtained by counting or measuring?

• quantitative
• qualitative

The summary at the end of an experiment that explains the results. 

• conclusion
• procedures
• materials
• responding variable

Tags

NGSS.MS-LS2-4