8th Grade Science Pre-test

The Earth formed approximately____________ years ago and the moon formed shortly thereafter.

• 6.4 Trillion

• 13.8 Billion

• 4.6 Billion

• 542 Million

Tags

NGSS.MS-ESS1-4

The relative age of a rock is ____________________.

• based on how much Carbon-14 the rock contains

• less than the age of the fossils the rock contains

• the number of years since the rock formed

• its age compared to the ages of other rocks

Tags

NGSS.MS-ESS1-4

88% of geologic time scale occurred in the ________________Era.

• Precambrian

• Mesozoic

• Cenozoic

• Paleozoic

Tags

NGSS.MS-ESS1-4

What are fossils?

• molds and casts of organisms that live today

• footprints or burrows of small animals that live today

• drawings of ancient animals and other organisms

• the preserved remains or traces of organisms that lived in the past

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

An animal without a backbone; for example, jellyfish, worms, slugs and sea sponges.

• arthropod

• vertebrate

• invertebrate

• insects

Which is true about hypothesis?

• It may reject or support your prediction.

• It is an educated guess or possible answer to the question.

• It summarizes the result on the experiment.

• It is the final answer to the question.

Tags

NGSS.MS-LS1-5

Which is the second step in scientific method?

• Making a conclusion

• Identifying the problem

• Formulating hypothesis

• Do background research

"Does the color of the light, a tomato plant receives affect the size of fruits?" What component of scientific method is shown?

• identifying a problem

• the hypothesis

• the research

• the analysis

Tags

NGSS.MS-LS1-5

The scientific method starts when you ___________ about something that you observe.

• do background research

• ask a question

• construct hypothesis

• construct a conclusion

It is also known as manipulating variable. The condition you change during the investigation.

• Control variable

• Dependent variable

• Independent variable

• Responding variable

Tags

NGSS.MS-PS2-2