Unit Test — Unit test Answers

The results of a dart game were precise but not accurate. The accepted value of the game was the center of the dartboard.

What is a main reason why the scientific model of atoms is considered a theory rather than a law?

Bena thinks that dissolving more salt in water causes the mixture’s freezing temperature to change.Which is the best type of scientific investigation for Bena to use to study this?

Read the passage about the health risks of single-load liquid laundry packets.These packets are filled with concentrated, toxic chemicals. A 7-month-old in Florida died from swallowing the soap. Several soap and detergent companies are conducting studies to address these safety concerns; they want to reduce toxicity and to make the packets look less like candy. The U.S. Consumer Product Safety Commission (CPSC) is also performing studies to build more safety into these products.

Scientists in a particular field strive for the same quality of work because they know their peers will be reviewing their scientific claims. What does this review process help ensure?

Which model best represents a pattern?

The idea that people behave in odd ways on a full moon is an example of

Which is caused by distracted drivers and may most likely be reduced by brain-powered cars?

Alisha organizes her data about the element lead into a table.Which did Alisha place in the wrong column?

Prior to the invention of a revolutionary means of travel, people had to take long, dangerous journeys to cross parts of the country. Due to this development, society was revolutionized as travel became safe and efficient.

Which describes data that is faked or misplaced?

Ingrid wrote the hypothesis below.If the temperature of a liquid increases, the density of the liquid decreases because the particles move farther apart.What are the variables in her hypothesis?

Hallie takes notes in class as shown below.Developed through making observations About the natural world Observation → question → hypothesis → experiment

Which characteristic should a good scientific question have?

The table shows results of an experiment that was replicated.

What is required to contain warnings, after several studies that have shown that they are a suffocation risk?

Which is the SI base unit for mass?

Saul converts 2.392 hectoliters to liters. What should his new number be?

What are positive effects of plastics?

Which statements are true of all scientific endeavors?