Performance Matters Review: Nature of Science

Which choice does not describe replication?

• Two astronomers observe an eclipse from different observatories.

• Two scientists both perform experiments on the same species of plant.

• A scientist reads a journal article, and then does the experiment it described.

• A scientist shares a procedure with another scientist who then does the experiment.

A scientist describes an experiment as follows:

Two identical plants were grown in identical conditions, except one received fertilizer and water while the other received only water. The plant that received fertilizer grew faster.

Which best describes why the experiment either can or cannot be replicated?

• The experiment can be replicated because the results were indicated.

• The experiment cannot be replicated because no two plants are exactly the same

• The experiment cannot be replicated because the methods are not fully explained.

Tags

NGSS.MS-ETS1-1

Repetition and replication are important methods for validating scientific results. Which best describes why?

• Repeating and replicating investigations can show if scientists make errors.

• Repeating and replicating investigations gives more scientists a chance to work

• Repeating and replicating investigations takes time and effort, but are necessary

• Repeating and replicating investigations allows the public to decide if the results are valid.

Tags

NGSS.HS-PS2-5

Which describes repetition?

• A chemist measures the timing of a chemical reaction several times.

• A large-scale experiment is conducted by a team of several scientists.

Which is not an example of repetition

• Susan makes a baked pasta recipe for the second time.

• Frank conducts an experiment already done by Rico on soil bacteria.

• Casey tests her slug experiment for a third time

• Bryan tests his physics experiment again in the same day.

Which is a benefit of a scientific model?

• It provides a complete image of the concept it is modeling.

• It provides an accurate scale of the concept it is modeling.

• It provides an accurate visual representation of the texture and coloring of the concept it is modeling

• It provides a useful understanding of the concept it is modeling.

Tags

NGSS.MS-ETS1-4

NGSS.MS-LS2-3

NGSS.MS-PS1-1

A Punnett square is a type of model. Which type of model does this Punnett square represent?

• conceptual

• functional

• mathematical

• physical

Tags

NGSS.HS-LS3-1

Which is an advantage of conducting an experiment in a laboratory?

• All experiments can be successfully conducted in a laboratory.

• Conditions are not controlled which allow useful variability.

• It is a controlled method of data collection.

• The results are better than in a field experiment.

Which subject of a science experiment would not be useful to have a physical model included?

• a human heart

• an animal cell

• an equation on forces

• the solar system

Tags

NGSS.MS-LS1-2

What makes a model not useful?

• if it is out of proportion with the object it represents

• if it is made of a different material than the object it represents

• if it is not the same mass of the object it represents

Tags

NGSS.MS-ETS1-4