AnswersAISD-TX-Earth Systems A - Credit Recovery 2025-26Scientific Knowledge

Scientific Knowledge Answers

0 verified answers2 views
1
Free Preview

Tom wants to conduct a scientific study but he needs to finish by the end of the school year. What practical way could Tom work around this limitation and be successful in his scientific study?

A
conduct smaller studies over time
B
create models for large or complex components
C
limit the scope of the study
D
acknowledge limitations
3
Free Preview

Jorge is conducting a clinical trial to study the effects of a new medicine on participants. Which is an observation Jorge might make?

A
Jorge wonders if the drug might react with food that participants ate that morning.
B
Jorge notices that one of the participants is starting to get a rash on his face.
C
Jorge concludes that some participants might get a rash due to their eating habits.
D
Jorge advises participants not to eat eggs on the morning of the clinical trial.
4

Enzo’s grandmother has warned him not to go outside while his hair is wet. She tells him that he will catch a cold just like she caught a cold when she went outside with her hair wet.What type of statement is Enzo’s grandmother using?

A
The statement is considered science because her advice is based on observation and experimentation.
B
The statement is considered science because her advice involves a collection of information.
C
The statement is considered pseudoscience because her advice is based on facts.
D
The statement is considered pseudoscience because her advice involves an opinion.
5

Which statement best describes science?

A
It involves an unsystematic process.
B
It involves a systematic process.
C
It is supported by beliefs or opinions.
D
It is supported by a subjective view.
6

George wants to know which flower, a carnation or a rose, is more beautiful. He surveys his classmates to gather data.Why is the survey considered pseudoscience?

A
The data are objective.
B
It involves a collection of facts.
C
It involves a collection of opinions.
D
The data are constantly updated.
7

Ben bought two identical plants and placed them on opposite ends of his garden. After several days, he noticed that one grew taller than the other. Ben wants to conduct an experiment to see why one would grow more than another. Ben is in what part of the scientific knowledge process?

A
observation
B
hypothesis
C
scientific question
D
experimentation
8

Students working on plant extracts want to test the hypothesis.Extracts of Bougainvillea flowers are effective in reducing symptoms of acne in teenage girls.The students are denied permission to conduct such an experiment for ethical reasons. What is the most likely reason for being denied permission?

A
lack of proper equipment
B
too much of a time commitment
C
not enough funding
D
humans as test subjects
9

A scientist just learned that she will not receive enough money to complete her year-long study about the relationship between certain diseases and the foods that people eat.How can she best overcome this limitation?

A
conduct smaller studies for more than a one-year period
B
study only a very small group of people
C
conduct a study about something else
D
use data from a similar study and adjust it to fit her study
10

Alexa is teaching students to measure and compare the speed of a pencil as it is dropped from different heights.Why is this experiment considered science?

A
The students are able to decide what height allowed the pencil to travel the fastest.
B
It involves experimentation and observation of the pencil dropping from different heights.
C
It involves Alexa’s judgment on what was the fastest speed of the falling pencil.
D
The students are able to provide a conclusion of the experiment based on their opinions.
11

Which example is a pseudoscientific process?

A
examining how sleep affects the brain
B
using dreams to predict future events
C
studying sleepwalking by analyzing sleep patterns
D
interpreting sleep-wake cycles through brain signals
12

A scientist hypothesizes that all trees in warm areas produce flowers before the rainy season begins. Which is a limitation to testing this hypothesis?

A
Rainy season varies around the world.
B
Geographical location of warm areas is very large.
C
Flowers of different trees are different colors.
D
Sample of trees is restricted to warm areas.
13

Quantum mechanics is the study of nature at a very small scale, even smaller than an atom. This kind of study faces many limitations.Which is a practical way to overcome limitations in quantum mechanics?

A
perform repeated experiments
B
perform further studies in a different lab
C
create models
D
continue looking for a solution
14

Which study involves the collection of information supported by opinions?

A
the study of the effect of playing in the rain on catching a cold
B
the study of the effect of a full moon on human behavior
C
the study of the effect of economic status on traveling
D
the study of the effect of economic status on eating out

Did you find these answers helpful?

More from this Course

Quiz
10 verified answers

Hypotheses, Theories, and Laws

Quiz
10 verified answers

Experimental Design Principles

Quiz
10 verified answers

Scientific Knowledge