Scientific Method

When a another scientist does someone's experiment to see if the results are valid?

• repetition
• replication
• experimental method
• controlled variable

Tags

NGSS.MS-PS2-5

Scientists frequently repeat the experiments of others scientists. Why is this important in science?

• Scientists often ask each other for help in performing experiments.
• Replication of experiments helps to confirm and verify results.
• Scientists frequently perform other scientists’ experiments in order to practice their technique.
• Repeating experiments is an effective way to make sure a laboratory is in optimal condition.

Josue goes to Silver River each week for 4 weeks and collects 5 samples of water to test the pH.

• repetition
• replication

Tags

NGSS.HS-ESS2-5

An environmental group contacts Nina to get her procedures so that they can check her results.

• repetition
• replication

Tags

NGSS.MS-ESS3-3

Which of the following would be considered quantitative data?

• Color
• Smell
• 6.84 cm
• texture

Tags

NGSS.MS-PS3-1

Explaining the color of a chemical would be what kind of observation?

• Qualitative 
• Quanitative

You will want your experiment to have ____ independent variable(s) in it for the experiment to be valid.

• 1
• 2
• 3
• 4

What is a factor that the experimenter has full control over and changes to see what happens?

• Dependent Variable
• Independent Variable
• Control group 
• Hypothesis

What is a factor that changes because of what the experimenter does?

• Dependent Variable
• Independent Variable
• Control Group
• Hypothesis

Nick wanted to see how high an ice cube would float in different temperatures of water. Identify the DEPENDENT variable
-Amount of water
-Height of Ice cube
-Temperature the ice cube was at its highest height
-Temperature of the water
-Size of the ice cube

• Amount of water 
• Height of Ice cube
• Temperature the ice cube was at its highest height 
• Size of the ice cube

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4