Unit 1 Quiz Practice - Nature of Science

What is a scientific theory?

• An explanation supported by a large amount of evidence

• A guess

• A description of a specific relationship under given conditions in the natural world

• An explanation based on opinion

What is a scientific law?

• An explanation supported by a large amount of evidence

• A guess

• A description of a specific relationship under given conditions in the natural world

• A description based on feeling

How can scientific ideas change over time? (Select all that apply).

• By new evidence

• A lucky guess

• By collaboration and debate

• By reading a textbook

Where might a scientist gather their information?

• Laboratory

• Field

• Laboratory and field

• In the textbook

What are the different types of scientific investigations? (Select all that apply).

• Observations

• Experiments

• Models

• Simulations

How do scientists perform "observation" investigations?

• By carrying out an experiment

• By using their five senses (sight, touch, smell, hearing, taste)

• By writing a research paper

• By listening to music

What is an independent variable?

• The test variable; what is being directly changed by the scientist

• The outcome variable; what changes as a result of the experiment

• All the things that stay the same throughout the experiment

What is a dependent variable?

• The test variable; what is being directly changed by the scientist in the experiment

• The outcome variable; the result of what happens in an experiment

• Everything that stays the same throughout the experiment.

What is the control variable?

• The test variable; what is being directly changed by the scientist

• The outcome variable; the result of the experiment

• Everything that stays the same throughout the experiment

What should a scientist do if their data does not support the hypothesis?

• Erase everything and start again

• Change their data/hypothesis to make them match

• Keep the hypothesis and data from the first investigation and use the information to form a new hypothesis and retest.