Sci. Reviewer 4QTR

Which one is equal to the number of protons and atomic number in an atom?

• Atomic Mass

• Neutrons

• Electrons

• Atomic Weight

The basic unit of matter

• Cell

• Atom

• Nucleus

• Matter

Tags

NGSS.MS-PS1-1

Also referred to as a shooting star

• Meteorite

• Meteoroid

• Meteor

• Comet

What did Schrodinger contribute?

• Discovered phosphorus

• Rutherford Planetary Model

• Billiard Ball Model

• Quantum Mechanical Model of the Atom

Tags

NGSS.MS-PS4-1

This type of mixture has a uniform appearance.

• Homogeneous Mixture

• Heterogeneous

• Colloid

• Suspension

A big chunk of rock in space

• Meteor

• Comet

• Asteroid

• Planet

Tags

NGSS.MS-ESS1-3

When the particles in a solid releases heat and slowly moves freely, this is a phase of matter called:

• Freezing

• Evaporating

• Vaporizing

• Melting

Tags

NGSS.MS-PS1-4

When these approach the sun, they form a tail of luminous material. These are also composed of ice, rock, and metals.

• Comet

• Meteor

• Asteroid

• Planet

Why are meteorites usually only small once they land Earth?

• Because it was already small while entering the atmosphere

• Because of the heat caused by the Earth's atmosphere while landing

• Because it got too close to the Sun

• None of the above

Determine the number of neutrons in an atom when the number of protons is 14 and the atomic mass is 20.

• 34

• 1.42

• 6

• -6