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Why do scientists write the results of their investigation in science journals?

• They want others to support their opinions.

• To communicate and share their findings so that others can do the same investigation and get similar results.

• It is required for being a scientist.

• To show others what they are doing wrong.

Which is an opinion?

• Purple is the best color for parrot fish.

• The boiling point of water is 100ºC.

• Bats us sonar to fly at night.

• The ball rolled 10.2 feet over four tries.

For what can scientists use the data in the graph?

• conclusion

• investigation

• evidence

• opinion

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NGSS.MS-PS3-1

Scientists conduct different kinds of investigations. Which of the following describes why Hannah's investigation was NOT an experiment?

• Hannah did not collect and record data.

• Hannah did not conduct a controlled test.

• Hannah did not show her information in a graph.

• Hannah observed only three different weather features.

Which statement is an opinion and NOT scientifically testable?

• Giraffes grow taller than zebras.

• Venus is the second planet from the sun.

• Water on Earth occurs as a solid, liquid, or gas.

• Computers never really help people.

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NGSS.MS-PS4-3

Which kind of information helps you answer a scientific question, or problem statement, asked before an experiment?

• opinion

• prediction

• evidence

• explanation

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NGSS.MS-LS2-4

Ricardo is doing an experiment to find out which M&M color dissolves the fastest. Which statement best explains why he should record the steps of his experiment and his observations?

• So that he can make a graph with his data

• so that he can move on to another experiment

• so that others can repeat his experiment and get similar results

• so that others cannot claim they did the same experiment

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NGSS.MS-LS1-5

Michelle conducted an experiment to find out how temperature affects humidity. She repeated her experiment four times. Which of the following is most likely the purpose of repeating her experiment?

• to wait for better weather conditions

• to see if she gets similar results each time

• to change the data collected

• to match her original hypothesis

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NGSS.MS-ETS1-3

Luisa is conducting an investigation about trees. She will use a meter stick to measure the length of the trees. Which of the following best describes why Luisa should write down her measurements in a data table as part of this investigation?

• to help her use a meter stick

• to help her control variables

• to help her organize her data

• to help her plan the steps to follow

Jada conducted a research about beavers. She concluded that beavers can be destructive. Which of the following statements provides evidence to support Jada's conclusion?

• The beaver is the largest rodent in North America.

• A group of beavers can cut down many trees in a single night.

• Beavers communicate with one another by slapping their tails on the water.

• Centuries ago, tens of thousands of beavers were hunted for their fur.