1: SSA Review Nature of Science

Front

Why is it important for scientists to frequently repeat the experiments of other scientists?

Back

Replication of experiments helps to confirm and verify results.

Front

Difference between repetition and replication in scientific experiments.

Back

Repetition is when a scientist does the same experiment a number of times; replication is when other scientists reproduce a scientist’s experiment.

Front

What is the test variable (independent variable) and outcome variable (dependent variable) in Kaylee’s experiment?

Back

Test variable (independent variable): temperature of environment; Outcome variable (dependent variable): frequency of chirping

Front

What step does every scientific experiment begin with?

Back

question/problem

Front

The variable that is being measured or observed is called the _______________. Hint: this is the variable that is the result or effect

Back

dependent variable

Tags

NGSS.MS-PS2-2

Front

The BEST reason another scientist is unable to replicate an experiment...

Back

They had variables that were not controlled.

Front

Jill wanted to see which type of food her rabbit liked the most. For several days she fed the rabbit equal amounts of cabbage, lettuce, and apples. She recorded the results in the chart. Based on these results, what can she conclude?

Back

Her rabbit will likely eat lettuce first over cabbage and apples.

Front

The graph shows the relationship between pressure and the depth in the earth's layers as rock is formed. Which statement summarizes the cause-and-effect relationship that the graph shows?

Back

As the amount of pressure increases, the depth increases

Front

Which hypothesis could be tested by this experiment? Options: Honeybees prefer to visit rose plants, Honeybees prefer to visit red flowers, Honeybees prefer to visit flowers in the morning, Honeybees prefer to visit Portland rose flowers between 9 and 10.

Back

Honeybees prefer to visit red flowers.

Front

What would be a proper hypothesis for testing the effects of type of exercise on heart rate?

Back

If type of exercise affects the heart rate of a person, then jumping jacks will increase the heart rate the most