Unit 1 Scientific Method

What is an observation?

• a. Using one or more of your five senses to describe a situation
• b. Making a guess about a situation
• c. Both a and b
• d. None of the above

What is an inference?

• What you see, hear, touch, smell, or taste
• It's a guess about a situation you can make given your observations.
• It's a type of data
• None of the above

Read the following hypothesis:

If I increase the temperature that I store an apple in, then the apple will last less time.

What is the independent variable?

• The temperature

• The amount of time the apple lasts

• The color of the apple

• Where you store the apple

Read the following hypothesis:
If I use a thicker object to block my phone, then my phone will have a weaker signal.
What is the dependent variable?

• How weak the signal is
• How thick the object is
• How good your cell phone is
• The color of the object used

A constant is:

• What the scientists changes
• What doesnt change
• What changes by itself
• What you expect to change

The basic unit of length in the metric system is 

• foot
• inch
• meter
• mile

The gram is the basic metric unit of

• length

• weight

• mass

• volume

The standard to which you compare the results of an experiment is called

• constant
• control group
• independent variable
• dependent variable

Observations that deal with descriptions that cannot be expressed in numbers are called

• quantitative observations
• qualitative observations
• manipulated observations
• operational observations

Observations that deal with a number or amount are called

• manipulated observations
• operational observations
• qualitative observations
• quantitative observations