Unit 2 Review (1/2)

What guides scientists in explaining the natural world through the process of inquiry, hypothesis formation, and testing?

• The Scientific Method

• The Nature of Science

• Bohr's Law

• Newtons 4th Law of Matter

Tags

NGSS.MS-LS2-4

The Atomic Theory is built on a lot of ___________ and _____________.

• fact, opinion

• truth, lies

• testing, evidence

• belief, faith

Tags

NGSS.HS-LS1-6

___________ is everything that we see, touch, smell and feel (AKA anything that has mass)

• Earth

• Atomic structure

• Matter

• Humanity

Tags

NGSS.MS-PS1-4

NGSS.MS-PS1-5

Then the SMALLEST unit of matter is an ____________.

• Element

• Compound

• Atom

• Insects

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Atoms have three parts:

• Negative

• Electrons

• Positive

• Protons

• Neutral

• Neutrons

Tags

NGSS.MS-PS1-1

The ___________ and _____________ are found in the center of the atom, a place called the nucleus.

• neutrons, electrons

• electrons, protons

• protons, neutrons

When did each scientist make their discovery of the atom?

• 1803

• John Dalton

• 1913

• J.J. Thompson

• 460 BCE

• Niels Bohr

• 1912

• Democritos

• 1897

• Ernest Rutherford

Density, volume, and mass are all...

• Measurments

• Physical Properties

• Chemical Changes

Ability of a substance to be stretched into a wire.

• Malleability

• Ductility

• Texture

• Volume

Match the forms of Conductivity:

• Heat transfer through materials

• Convection

• Transfer of energy through electromagnetic waves

• Conduction

• Flow of electric charge

• Thermal

• Transfer of heat through direct contact

• Radiation

• Transfer of heat through fluid motion

• Electrical