Scientific Investigation PLTW

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

• dependent variable
• independent variable
• data
• control group

Tags

NGSS.MS-PS2-2

What step does every scientific experiment begin with?

• hypothesis
• question/problem
• procedures
• conclusion

Tags

NGSS.MS-LS1-1

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

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

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

• conclusion
• procedures
• materials
• responding variable

A student wants to test the effects of type of exercise on heart rate.  What is the dependent variable?

• heart rate
• type of exercise
• amount of exercise
• time of day exercise occurs

Observations made during an experiment are called:

• data
• problems
• conclusions
• questions

Tags

NGSS.MS-PS1-2

On what axis should the independent variable always be?

• X
• Y

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

• scientific method
• recipe
• data collection
• metric system

When making an observation, you must use...

• Only Sight
• Smell & Touch
• ALL 5 Senses
• Only Taste

Tags

NGSS.2-PS1-1

The base unit of metric length.

• Meter
• Liter 
• Gram
• Metric