Physical Science Review

A possible explanation to a problem that has not yet been tested. (educated guess)

• Observation

• Law

• Theory

• Hypothesis

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

• Observation

• Science

• Scientific Method

• Data

In a controlled experiment, the variable that is changed to test the hypothesis is called the –

• Independent Variable

• Dependent Variable

The _________ is the one observed (measured) during the experiment.

• Dependent Variable

• Independent Variable

I want to know if low strength bleach, medium strength bleach, or maximum strength bleach will get Heinz ketchup stains out of white T-shirts the best. What is the variable in this experiment?

• type of stain

• color of shirt

• strength of the bleach

• brand of ketchup

Also known as the metric system, it's the international system used for measurement.

• Si

• Us

• Ms

• Meter system

What is the SI Unit for "Length"?

• Foot

• Meter

• Mile

• Gram

Which answer choice represents the correct notation ?

• 4,200

• 42,000

• 4,200,000

• 42,000,000

Which answer choice represents the correct notation?

• 0.01

• 0.001

• 0.00001

• 0.0000001

Use (Mass = D x V) to answer the word problem...

• 56.32 gm

• 22 gm

• 0.04 gm

• 33.6 gm