Physical Science Pretest

What do you can a substance that is being dissolved in a homogeneous mixture?

• a solute

• a solvent

• a solution

• a suspension

Glucose (C₆H₁₂O₆) contains atoms of carbon, hydrogen, and oxygen that are chemically bonded together. What type of matter is glucose?

• Glucose is an atom.

• Glucose is an element.

• Glucose is a compound.

• Glucose is a mixture.

A mixture can be separated into compounds by the following separation methods EXCEPT:

• filtration

• distillation

• centrifugation

• decomposition

What does the diagram show?

• A mixture of two elements.

• A mixture of two compounds.

• A mixture of an element and a compound.

The atomic number tells you what?

• number of electrons

• number of neutrons

• number of protons

• both electrons and protons in an atom

I. An element be broken down into simpler substances.

II. When an element is broken down, it keeps its properties.

• True, True

• True, False

• False, True

• False, False

What state of matter are stars made up of?

• gas

• solid

• liquid

• plasma

A fusion of two light elements creates...

• lighter elements + low energy

• lighter elements + high energy

• heavier elements + low energy

• heavier elements + high energy

When not enough fuel is available for fusion, the gravity pushes the stars inward and it turns into a ____________.

• nebulae

• protostar

• supernova

• black hole

The following are properties of metals at normal conditions EXCEPT:

• Shiny and malleable

• Can be solid, liquid or gas

• Good conductor of heat and electricity

• Can bond with another metal to produce alloy