Quarter 2 Exam Practice
Flashcard
•
Science
•
8th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the arrangement of particles in a liquid?
Back
Particles in a liquid are closer together than in a gas and have more energy than in a solid.
2.
FLASHCARD QUESTION
Front
What is the smallest unit of matter?
Back
The smallest unit of matter is an atom.
3.
FLASHCARD QUESTION
Front
What is a hypothesis?
Back
A hypothesis is a testable statement or prediction about the relationship between variables.
4.
FLASHCARD QUESTION
Front
What does it mean for evidence to 'fail to support' a hypothesis?
Back
It means that the evidence does not confirm the hypothesis and suggests that it may be incorrect.
5.
FLASHCARD QUESTION
Front
What is a pure substance?
Back
A pure substance is a material that has a constant composition and cannot be separated into other materials by physical means.
6.
FLASHCARD QUESTION
Front
What is the difference between a compound and a mixture?
Back
A compound is a substance formed when two or more elements are chemically bonded, while a mixture is a combination of two or more substances that are not chemically bonded.
7.
FLASHCARD QUESTION
Front
What is the scientific method?
Back
The scientific method is a systematic process for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge.
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