Scientific Method Vocab

A scientist wants to investigate the effects of adding fertilizer on plant growth. Amount of plant growth is the...

• independent variable

• dependent variable

• controlled variable

• unknown variable

A scientist wants to investigate the effects of adding fertilizer on plant growth. She makes sure that all plants in the study receive equal sunlight. Sunlight is a(n)...

• independent variable

• dependent variable

• constant, or controlled variable

• manipulated variable

A scientist wants to investigate the effects of adding fertilizer on plant growth. Which would be the control group in the study?

• the plants that receive no fertilizer

• the plants that receive fertilizer

The variable that the scientist is changing on purpose (Ex: how much light a plant receives).

• independent variable

• dependent variable

• constant

• control

Summarizes the results of an experiment based on the data. "the hypothesis was correct/incorrect because..."

• hypothesis

• conclusion

• control

• experiment

A testable prediction about a scientific investigation is a(n)

• Question
• Observation
• Hypothesis
• Experiment

 

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

• Quantitative

• Qualitative

You want to collect data on the taste of apples to help a farmer grow sweeter apples in his orchard.  You have your assistants describe apples as "sweet" or "tart".   This is called ____ data

• Quantitative

• Qualitative

An experiment where only one variable is changed by the scientist.

• Controlled experiment

• Scientific experiment

• Constant experiment

• Independent experiment

Which of the following is an observation of the picture?

• The person is wearing a t-shirt.

• The person is going to a birthday party.

• It's a sunny day.

• The gift is a DVD player.