Earth Science Test Prep

Factors that are kept the same in an experiment.

• constraints

• independent variable

• dependent variable

The variable in an experiment that is measured.

• independent variable

• dependent variable

• control

A good working statement or explanation for a problem that can be tested.

• question

• hypothesis

• control

• variable

Tags

NGSS.MS-PS2-2

The main source of information used by astronomers to learn about objects in space is

• 
  meteorites

• constellations

• electromagnetic waves

• comets

Main sequence stars may differ in all of the following ways except

• composition.

• temperature.

• 
  size.

• age

Tags

NGSS.HS-ESS1-3

In main sequence stars, nuclear fusion results in the formation of

• hydrogen.

• helium

• carbon.

• none of these.

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

What occurs as the universe expands?

• solar systems get larger.

• Galaxies increase in size.

• The space between galaxies increases.

• All of the above.

Tags

NGSS.HS-ESS1-2

After the Big Bang occurred, scientists think that the universe

• 
  started to expand.

• grew less dense.

• began to cool.

• all of these

Tags

NGSS.HS-ESS1-2

Earth is similar to the other inner planets in the solar system in its 

• 
  size.

• shape.

• composition.

• all of these

Tags

NGSS.MS-ESS1-3

Earth’s magnetic field resembles the magnetic field of a

• 
  bar magnet

• spherical magnet.

• horseshoe magnet.

• horseshoe magnet.