Science 6th Grade 2nd Quarter Exam

How small are atoms?

• About the size of dust specks

• About the size of a grain of salt

• Too small to be seen by the unaided eye

• The size of a lemon

--------- Though that all matter was made of fire, water, ai r and earth.

• Rutherford

• Democritus

• Aristotle

• Thomson

A change in an object's position compared to the compared to the position of another objects is called....

• Force

• Motion

• Speed

• Distance

The negatively charged particle in an atom is a(n)

• Electron

• Neutron

• Nucleus

• Proton

What is the abbreviation for potassium?

• Pa

• Po

• Ka

• K

What is the abbreviation for Helium?

• H

• Hea

• He

• he

Which one is a compound?

• Helium Unicorn Rainbow

• Sodium Chloride

• Iron Oxide

• Helium and Nitrogen

The rate of a chemical reaction is...

• The speed in which a reaction occurs

• The amount of reactants present in the chemical reaction

• The type of chemical reaction occurs

• How quickly a chemical reaction be reserved

Fill in the Bank

Positively charged particles found in the nucleus of an atom are called ___________

• Electrons

• Electron cloud

• Protons

• Neutrons