Six Weeks Test Review

What is the proper way to protect your eyes in the lab?

• Wearing Only Chemical Safety Googles at all times

• Sunglasses or Prescription Glasses

• By wearing chemical safety goggles or any other type of goggles

• Avoid handling dangerous chemicals

Which of the following is the appropriate dress code when performing an experiment?

• hat

• loose clothes

• apron

All spills and accidents should be reported to Coach Reid no matter how minor.

• True

• False

Ernest Rutherford's gold foil experiment concluded that

• atoms are mostly empty space

• atoms have positive charges distributed throughout the atom

• atoms contain electrons

What is a chemist more likely to study?

(Hint Biologist are want to be Chemist that could not do math)

• Color changes of an object

• speed of an object

• Biological changes in a plant

• Biological properties

Horizontal rows in the periodic table are called

• Groups

• Families

• Periods

• Protons

Which of the following is a physical change.

• Freezing

• Explosion

• Corrosion

• Rotting Food

Which of the following is a chemical change?

• painting

• cutting

• decaying

Which of the following is a heterogeneous mixture?

• Air

• Coffee

• Milk

• Sand

Is a air a heterogeneous or homogeneous mixture?

• Heterogeneous

• Homogeneous