7th HMH Unit 1 L3&4 Quiz

A science class is studying seeds. They plan to measure the length, height, and mass of different types of seeds. Which of these items should the class use to record their measurements as the class takes the measurements?

• camera

• drawing

• graph

• data table

Tags

NGSS.5-PS1-3

Two students measured the length of the same sample of rock, but their measurements were not the same. They want to find the cause of the difference. Which of the following claims should not have contributed to the difference in measurements?

• One student measured from left to right; the other student measured from right to left.

• One student used a ruler; the other student used a measuring tape.

• One student measured in units of cm; the other student measured in units of m.

• Each student used a different technique for measuring length.

Scientists use computer models to study how black holes form in space. Which statement explains the reasoning for using a computer model?

• Black holes do not actually exist.

• Black holes are too small to study.

• Black holes are too dark to study.

• Black holes are too far from Earth.

Tags

NGSS.MS-ETS1-4

A scientist used a model to predict the path of a hurricane. The hurricane followed a similar path but did not follow the exact path that was predicted. How does this example demonstrate a limitation of models?

• Models cannot be used to predict things.

• Models can be used to predict weather events before the event occurs.

• Models cannot account for how every factor may suddenly change.

• Models can only be used to show physical structures, not events such as hurricanes.

Tags

NGSS.MS-ETS1-4

The table below lists the population of Greenwood in 4 different years.

What can you claim was the population of Greenwood in 2007, based on the evidence?

• 212

• 217

• 212,000

• 217,000

Which of the following pairs of claims correctly identifies the goals of science and engineering?

• science: construct explanations of the natural world; engineering: address the needs of society

• science: develop new technology to explore the natural world; engineering: apply mathematics to the study of the natural world

• science: improve human quality of life; engineering: learn about the natural world

• science: develop manmade systems; engineering: develop tools and machines

Tags

NGSS.MS-ESS3-1

NGSS.MS-ESS3-4

During which step of the engineering design process would a scientist publish a report in a scientific journal?

• conduct background research

• prepare preliminary designs

• test a prototype

• communicate results

The engineering design process may result in many solutions to a problem. Even after collecting evidence, engineers may disagree about which solution is the best. Which of the following is not a valid reason to conclude that a solution is the best one?

• The solution has the lowest financial cost.

• The solution was the engineer’s first idea.

• The solution uses materials that are readily available.

• The solution has the best ratio of environmental cost and benefits.

Tags

NGSS.MS-ETS1-2

NGSS.MS-ETS1-3

Which of the following claims about empirical evidence and conclusions is correct?

• Empirical evidence is collected through observation, and conclusions are the results of interpreting empirical evidence.

• Empirical evidence is collected during experiments, and conclusions are collected during engineering processes.

• Empirical evidence is based on the bias and opinions of scientists, and conclusions are based on facts.

• Empirical evidence is important for engineering processes, and conclusions are important for scientific processes.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-4

A digital scale is an example of technology used to gather data during the engineering design process. Look at the digital balance and sample below.

What should the scientist record as the mass of the sample?

• 15

• 15.99

• 15 g

• 15.00 g