8th Grade Science Review

For every action there is an equal and ___________ reaction

• same

• opposite

• larger

• smaller

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Why is digital better than analog?

• new technology is always better than older technology

• analog isn't reliable

• digital is a less expensive method to transfer data

• digital is less likely to lose information

Tags

NGSS.MS-PS4-3

Where do most earthquakes occur?

• at plate boundaries

• California

• near volcanoes

• at the coastline

Tags

NGSS.MS-ESS3-2

During the process of evolution, animals did not exist until____________.

• after Pangea had become separate land masses

• after many earthquakes and volcano eruptions

• after atmospheric oxygen had increased

• after a great diversity of plants formed

Tags

NGSS.MS-LS4-1

What tool allows scientists to better understand the surface conditions of Mars?

• spectroscope

• microscope

• telescope

• satellite

Tags

NGSS.MS-ESS1-3

What two things led to mass extinctions throughout the earth's history?

• gradual changes and catastrophic events

• earthquakes and volcanoes

• over hunting and natural disasters

• pollution and space exploration

Tags

NGSS.MS-ESS3-2

NGSS.MS-LS4-1

What is NOT a way to increase the strength of an electromagnet?

• decrease the number of coils

• use a stronger battery

• use a stronger magnet

• increase the number of coils

Tags

NGSS.MS-PS2-3

How can you test to see if an electromagnet is stronger after adding more coils of wire?

• if it picks up fewer paperclips

• compass still points toward the electromagnet when moved further away

• if it picks up the same number of paperclips

• compass still points toward the electromagnet when moved closer

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

This is an example of a __________ wave.

• digital

• analog

• binary

• loopy

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-3

000011 001011 is an example of ___________ code.

• analog

• digital

• binary

• loopy

Tags

NGSS.MS-PS4-3