8th Physical Science Introduction: Scientific Problem Solving

What number is equal to 4.03 x 10^-6?

• 0.000403

• 4,030,000

• 0.00000403

• 403,000,000

Which phrase does NOT describe a hypothesis?

• can be tested

• always correct

• possible explanation

• based on observation

Tags

NGSS.MS-PS1-2

How would the number 0.0421 be expressed using scientific notation?

• 4.21 x 10²

• 421.0 x 10⁴

• 4.21 x 10^-2

• 421.0 x 10^-4

SI stands for the International System of Units. Which of the following is NOT an SI base unit?

• kilogram

• liter

• meter

• second

An explanation of observations of events based on knowledge gained from many observations and investigations is which of the following?

• scientific law
• scientific truth
• scientific theory
• scientific experiment

A possible explantation of an observation that can be tested is ______.

• A conclusion

• A hypothesis

• An observation

• a Control

Tags

NGSS.MS-LS1-5

Which of the following is a way that scientists communicate their results to others?

• speak at a conference
• write scientific articles
• exchange information on the internet
• all answers are correct.

A logical explanation of an observation that is drawn from prior knowledge or experience.

• observation

• prediction

• inference

• hypothesis

Which of the following is NOT a branch of science?

• Life

• Earth

• Biodiesel

• Physical

What should a scientist do first if a hypothesis is NOT supported?

• more repetition

• more testing

• gather more information

• modify and revise the hypothesis

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-4