Practice Test December
Flashcard
•
Science
•
9th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the pH scale?
Back
The pH scale measures how acidic or basic a substance is, ranging from 0 (very acidic) to 14 (very basic), with 7 being neutral.
2.
FLASHCARD QUESTION
Front
What does a pH less than 7 indicate?
Back
A pH less than 7 indicates that a substance is acidic.
3.
FLASHCARD QUESTION
Front
What does a pH greater than 7 indicate?
Back
A pH greater than 7 indicates that a substance is basic.
4.
FLASHCARD QUESTION
Front
What health problems can acid rain contribute to?
Back
Acid rain can contribute to respiratory problems and other lung issues.
5.
FLASHCARD QUESTION
Front
What is seismology?
Back
Seismology is the study of earthquakes and the seismic waves that they produce.
6.
FLASHCARD QUESTION
Front
What is a unit of speed?
Back
Common units of speed include miles per hour, kilometers per hour, and meters per second.
7.
FLASHCARD QUESTION
Front
Which of the following is NOT a unit of speed: miles per hour, grams per cubic centimeter, or kilometers per hour?
Back
Grams per cubic centimeter is NOT a unit of speed; it is a unit of density.
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