Nature of science

Flashcard
•
Science
•
9th Grade
•
Hard
Standards-aligned
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19 questions
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1.
FLASHCARD QUESTION
Front
What is true about a scientific theory?
Back
A scientific theory is an explanation.
2.
FLASHCARD QUESTION
Front
What is the difference between a scientific theory and a scientific law?
Back
A theory is an explanation of the natural world and a law is a description of the natural world.
3.
FLASHCARD QUESTION
Front
What best describes a hypothesis?
Back
A hypothesis is a prediction about what will happen based on observations and evidence.
4.
FLASHCARD QUESTION
Front
Which of the following is NOT an observation made in a laboratory experiment?
- making observations about the effect of fertilizer on plants growing in the lab
- comparing the colors of flowers grown in an experiment
- measuring the growth of plants exposed to different amounts of sunlight
- counting the human population in the State of Florida
Back
counting the human population in the State of Florida
5.
FLASHCARD QUESTION
Front
Which choice is an independent variable?
- measuring the distance a student can jump in meters
- counting the number of ants in population
- measuring the lengths of students' hair
- providing different levels of sunlight to plants in an experiment
Back
providing different levels of sunlight to plants in an experiment
6.
FLASHCARD QUESTION
Front
Why should an experiment be repeated?
Back
to reduce the chance of error
7.
FLASHCARD QUESTION
Front
How many independent variables should be tested at a time in a scientific investigation?
Back
one
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