PMA 1 Review 22-23: Nature of Science

After reviewing and analyzing Quentin's experimental results, Janelle believes that his experiment contains errors which led to incorrect conclusions. Which of the following explains what Janelle can do to confirm her analysis of the experiment?

• She can replicate Quentin's experiment to see if she gets the same results.

• She can change variables in Quentin's experiment to try to change   the results.

• She can keep the variables the same but use different tools to measure the data.

• She can conduct a different experiment to show how the results should be different.

Jamal and Anne are trying to determine how much it rains each week in their neighborhood. Jamal and Anne both used the same rain collector, they both place their rain collector on the same windowsill at school, and each day they record the amount of rain water collected at the same time. They have each recorded their data in the table shown below. Which statement best compares the investigation methods used by Jamal and Anne?

• Anne's materials were more precise than Jamal's.

• Jamal's hypothesis was more clearly written than Anne's.

• Anne used a more reliable set of procedures than Jamal.

• Jamal used a more accurate method to measure his data than Anne.

Tags

NGSS.MS-ESS2-5

Daniel and Alex are both scientists. Daniel is investigating different fuel sources for cars in the future. He conducts three trials and then shows Alex his results from each trial. Alex is confused about Daniel’s results, so he decides to conduct the investigation for himself. Which scientific process did each scientist use?

• Alex and Daniel used each others data to compare their results.

• Alex and Daniel used the same hypothesis to compare their results.

• Daniel used repetition in his experiment while Alex used replication.

• Daniel used replication in his experiment while Alex used repetition.

Stephanie and Raphael were working on their own, completing the same lab in class one afternoon. Once they finished their lab, the posted their data sheets so they could compare their results below.

What should they do to validate their data?

• Do the same lab again and compare the results.

• Ask their teacher for a different procedure to follow.

• Discuss who they think followed the procedure better, and use their data.

• Post their lab results on the internet an let other decide who’s data to use.

Tags

NGSS.MS-PS1-2

Scientists once believed that an atom was a solid sphere, and that they couldn't be split up any further. After several experiments, they discovered that an atom is made up of even smaller particles. Which of the following statements best describes how scientific knowledge changes as new information is discovered?

• It is accepted as true permanently.

• It helps advance scientific knowledge.

• It is thrown out to preserve the old information.

• It hinders the advancement of scientific knowledge.

Which of the following statements should Marley use to support her scientific explanation?

• I have shared my thoughts with other scientists, and they seem to agree with my explanation.

• Based on my knowledge and experience at the Natural History museum and the age of this bone, I would argue that it belonged to a flying dinosaur.

• After reviewing our results, comparing it to the research that has been conducted by other scientists, the evidence supports the possibility that the bone belonged to a flying dinosaur.

• In my observation, I noticed that the bone was hollow. I remember learning in college that birds have hollow bones, and considering the age of the bone I believe that the fossil belong to a flying dinosaur.

Tags

NGSS.MS-LS4-2

A project manager asked four scientists to develop to figure out why the local power plant was producing less energy this year compared to last year.  Which of the submitted plans should the project manager choose?

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Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

NGSS.MS-ETS1-3

Domonique wanted to learn what cookware warmed up her soup the fastest on her stove.  She had three different containers to test, a metal pot, a glass pot, and a ceramic pot. What lab sheet below should she use?

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Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

After the class completed a lab, Adrian’s science teacher asked how each group could increase the validity of their lab results.  After some discussion, the lab group decided they would replicate their lab.  Which process should the group use?

• Complete the lab 3 more times and compare data.

• Have another group in the class complete their lab and compare their data.

• Use another groups lab procedures to complete their lab and compare their data.

• Have another group review their lab, make changes to it and then complete that lab.

Tags

NGSS.MS-ETS1-4

Max wanted to buy the bounciest rubber ball money can buy.  He hypothesized that the most expensive rubber ball will bounce the highest.  To test his hypothesis he bought four different rubber balls.  Below is his data from his test.

What statement below is the best way for Max respond to his results?

• My results don’t support my hypothesis, so there is nothing I can use from this experiment.

• My results prove price effects the bounciness of a rubber ball, and I should purchase the Super Bounce ball.

• My results support that price effects the bounciness of a rubber ball, and I should purchase the Super Bounce ball.

• My results fail to support that price has an effect on the bounciness of a rubber ball, so I should test a different variable.

Tags

NGSS.MS-ETS1-3