Scientific Method

A good scientific question has to be______.

• true

• testable

• always correct

• always incorrect

The scientific method is a linear process with one step leading to another in the same way each time.

• True

• False

Tags

NGSS.MS-PS1-2

People using the scientific method usually start with

• a hypothesis

• a conclusion

• a set of experiments

• a question

A scientific question can be based on

• one or more observations

• data from a past experiment

• data and analysis contained in a published scientific paper

• All of the above

Tags

NGSS.HS-ESS2-2

If you were running an experiment to determine the temperature at which beans sprout the fastest, what would be the variable?

• The number of beans you plant

• The height of the sprouts you grow.

• The amount of water you give the beans.

• The temperature at which each bean is kept.

Tags

NGSS.MS-LS1-5

What happens if you test a hypothesis multiple times and the data doesn't support your prediction?

• Change the data to support your prediction

• Run the experiment again until you get the results you're looking for

• Conclude that your hypothesis cannot be proven

• Re-think your hypothesis

Tags

NGSS.MS-LS1-5

NGSS.MS-PS2-5

The variable the experimenter is controlling or manipulating and that gets graphed along the x-axis is the__________variable.

• independent

• dependent

• control

• outside factor

The part of an investigation that remains the same is the

• uncontrolled variable.

• independent variable.

• control variable.

• dependent variable.

An investigator is interested in seeing how tall a certain species of plant will grow if it is kept under red light for a month. What would be valid hypothesis for this experiment?

• If the light is red, then the plant will grow.

• If the investigator uses pea plants, then there will be a lot of growth.

• If plants are grown under different colored lights, then they will grow different heights.

• If a month passes, then the plant will grow under the red light.

Tags

NGSS.MS-LS1-5

Sally conducts an experiment measuring plant growth. She finds that after two weeks, a plant that received water grew 4 cm, but a plant that received soda died. What is the term for what is being measured?

• hypothesis

• dependent variable

• independent variable

• control