Unit 1 Review

Joe wanted to learn more about Titan, one of Saturn's moon. Which of the following sources of information would be Joe's best choice?

• a survey

• friends' opinions

• a newspaper article

• NASA's astronomy webpage

Tags

NGSS.MS-ESS1-3

Tyler made some observations and has a question he would like to answer. What should Tyler do next?

• create an opinion

• analyze his evidence

• plan and conduct an experiment

• draw conclusions and communicate his results to someone

Eliot wonders what kind of frogs live in the pond behind his house. What skill will Eliot use to investigate the variety of fogs in the pond?

• infer

• observe

• order

• communicate

Scientists conduct investigations. What is the main reason for scientific investigations?

• to practice doing experiments

• to learn about recent discoveries

• to demonstrate scientific procedures

• to answer questions about the natural world

Sometimes scientists replicate the research of other scientists. Which of the following is the most likely reason scientists do this?

• to form new theories

• to improve the research

• to win prizes for their work

• to verify that the work is accurate

Tags

NGSS.HS-LS4-1

Look at the steps of the scientific method on the classroom wall. Which statement is true of this scientific method?

• It should be considered a flexible guide.

• It lists each step according to importance.

• It is the only one that scientists use.

• The results should not be communicated if you don't like them.

Sam conducts an experiment. His results did not support his hypothesis. What should he do?

• Repeat the experiment to check for errors.

• Change the results to support the hypothesis.

• Discard the data because it does not agree with his hypothesis.

• Try to make an experiment that will give him results she wants.

Tags

NGSS.MS-LS1-5

Models allow scientists to test things that might be too expensive or difficult to test the real item. Which of the following would be an investigation that could use a model?

• whether a new spray will repel mosquitoes

• how many times per day a robin leaves her nest.

• how much weight a new bridge can support

• how much water a cubic meter of sand can hold.

Tags

NGSS.MS-ETS1-4

A hypothesis must be testable. Which hypothesis is testable?

• Blue is the best color.

• Summer is nicer than fall.

• Dogs are better than cats.

• A beagle can jump higher than a Persian cat.

Tags

NGSS.MS-PS2-2

A scientific method is a way to investigate a scientific problem. Although the order of steps can vary, the tasks performed during each step often stay the same. During which step of the scientific method would a scientist collect data?

• develop a plan

• forming a hypothesis

• testing the hypothesis

• communicating the results