Science Review

A scientist uses an instrument to observe the pattern of molecules in a substance. The picture below shows what the scientist sees.

What state of matter is the scientist MOST likely observing?

• gas

• liquid

• vapor

• solid

Tags

NGSS.MS-PS1-1

What is at the center of our solar system?

• a medium planet with an atmosphere

• a star composed of carbon and nitrogen

• a black hole that was once a star

• a star composed of hydrogen and helium

Tags

NGSS.MS-ESS1-2

Which of these revolves around a planet?

• an asteroid

• a moon

• a comet

• a star

Tags

NGSS.MS-ESS1-2

Which of the following questions is testable in a scientific investigation?

• Are dogs better pets than cats?

• Are dogs happy when they are walked?

• Are cats more active at night than during the day?

• Are cats easier to take care than dogs?

The largest body in our solar system is

• Earth

• the Sun

• Jupiter

• the Moon

Tags

NGSS.MS-ESS1-3

Which of the following is found FARTHEST from the center of an atom?

• nucleus

• proton

• neutron

• electron

Tags

NGSS.MS-PS1-1

A galaxy is BEST described as a clustered of

• billions of stars

• hundreds of stars

• thousands of stars

• millions of stars

Why does an apple look red?

• Red light waves are reflected by the apple

• Red light waves are absorbed by the apple

• Red light waves are reflected by a student's eyes

• Red light waves are absorbed by a student's eyes

Tags

NGSS.MS-PS4-2

What is the material through which mechanical waves travel?

• charged particles

• space

• a vacuum

• a medium

Tags

NGSS.MS-PS4-2

A(n) _______ can travel through space without a medium.

• Electromagnetic wave

• Mechanical wave

Tags

NGSS.MS-PS4-1