00.07 Module Exam: earth space science

Which of these statements is correct about a theory?

it can be changed by current evidence

Meter is the SI base unit for measuring

length

Which of these questions is scientific?

What is the age of the Earth?

Which of these is an example of an experiment?

add different quantities of water to three potted plants

Kate plans to start a winter garment store. The market conditions suggest that the best time to start a winter garment store is between October and February. She would earn the best profit during the first six months of the year. Based on scientific knowledge and trends, which of these would be the most favorable month for Kate to start her store?

December

Sarah plans to go on an outing with her friends. On Saturday morning, the sky was cloudy and Sarah's barometer indicated that the air pressure was falling. When air pressure falls, it indicates the weather conditions will decline. The air pressure kept falling for the next three days and then started rising on the fourth day. Based on scientific knowledge, which of these was the most favorable day for Sarah to go on an outing?

Wednesday

A scientific question should be

creative

Two scientists did the same experiment bu arrived at different results. The scientists most likely

did not have accurate data and information

Which of these forces attract a positive charge towards a negative charge?

electromagnetic force

Which of these is part of the cryosphere?

icebergs

Four groups of students in different parts of the world are investigating the reason why the shape of the moon changes from time to time. If the results of their investigations are considered valid, they would most likely be

identical

One scientist discovered a new theory on the evolution of the universe. What is the next step for the scientist to take?

inform the scientific community so they can verify the results

Which of these statements is correct about a theory?

it can be changed bu current evidence

Which of these statements best describes how scientific thinking is useful in daily life?

it helps reject false assumptions in society

A scientific theory states that Earth revolves around the sun. Which of these statements is correct about this theory?

it is a well supported explanation

"The sun rises in the east and sets in the west." Which of these statements is correct about this law of science?

it is an observation which cannot be challenged

Which of these is an example of a hypothesis?

leaves may change color due to temperature

Kilogram is the SI base unit for measuring

mass

Which of these is a part of the geosphere?

minerals

Which of these describes a situation where science is used?

predicting the weather by looking at the clouds

Two scientists did the same experiment but arrived at different results. The results would most likely

provide testable ideas

Predictions about the future based on the position of planets is an example of

pseudoscience

Scientific knowledge becomes more reliable when it is

questioned

In ancient times, scientists believed that matter could be destroyed by burning or breaking. Modern scientists believe that matter cannot be destroyed. What best accounts for these different opinions?

scientists with varied backgrounds make different interpretations

Which of these forces help protons and neutrons to stay at the center of the atom?

strong nuclear force

A scientific idea becomes valid when it is

tested

A scientist plans to find out the percent of teenagers who like science. She interviews 500 teenagers leaving a science museum and finds that 450 of them like science. The scientist concludes that 90 percent of teenagers like science. Why is the scientist's conclusion most likely unreliable?

the source of information was biased

One scientist discovered a new theory on the evolution of stars. Why is it necessary for scientists all over the world to agree with the theory before it can be accepted?

to make certain that the results are reliable

A scientist studies a model of a widely accepted theory about the universe. The model would most likely help the scientist to

understand a theory which cannot be observed

Scientists in different parts of the world have conducted experiments to find the speed of light in vacuum. If the results of the experiments are identical, they would most likely be

valid