DLM Science Literacy 5

Question 1

A student conducts an experiment testing how fertilizer amount affects plant height. The dependent variable is:

Accepted Answer

The height of the plant at the end of the experiment

Answer

The dependent variable is what is measured as an outcome; plant height changes in response to the independent variable (fertilizer amount).

Question 2

What does it mean if experimental data has high accuracy but low precision?

Accepted Answer

Measurements are near the true value but spread widely around it

Answer

High accuracy means values are close to the true value on average, but low precision means individual measurements are spread out rather than clustered.

Question 3

Which of the following is the best example of using science literacy to evaluate a food label claim?

Accepted Answer

Looking up independent nutritional research to verify the claim

Answer

Science literacy means seeking independent, evidence-based information rather than accepting marketing claims at face value.

Question 4

A graph shows a positive correlation between hours of exercise per week and average test scores. Which statement is most scientifically cautious?

Accepted Answer

There may be a relationship between exercise and scores, but causation is not established

Answer

A correlation shows a relationship but does not prove that one variable causes the other; additional controlled experiments are needed to establish causation.

Question 5

Which of the following is an example of a scientific law?

Accepted Answer

Newton's law of universal gravitation

Answer

Newton's law of universal gravitation is a scientific law that describes a consistent, observed pattern in nature through a mathematical relationship.

(DLM) Dynamic Learning Maps Practice Test

(DLM) Dynamic Learning Maps Practice Test

DLM Science Literacy 5