Milestone Physical Science Review

Each element in the periodic table is assigned an atomic number. This number is the same as...

• the number of electrons in the atom's nucleus

• the number of protons in the atom's nucleus

• the number of neutrons in the atom's nucleus

Which shows only a physical change in the wood?

• a tree

• cutting wood

• burning wood

• ashes of the wood

Two or more atoms, joined covalently, that act as a unit, are called a(n)... 

• ion

• atom

• mixture 

• molecule

Tags

NGSS.MS-PS1-1

Stan did an experiment. The following are his results. Which one of these provided evidence of a physical property?

• vinegar fizzed

• test tube got hot

• cornstarch turned black

• cornstarch felt slippery

As you move across the periodic table from left to right within a period, the elements...

• become less stable

• become more reactive

• change from gases to solids

• change from metals to nonmetals

Through which of the following materials does heat travel the fasest

• glass

• metal

• plastic 

• wood

Which represents kinetic energy?

• a bear standing in a field of berries 

• a salmon resting in still water

• a bear holding a salmon it has caught

• a salmon leaping up a waterfall

Tags

NGSS.MS-PS3-1

When a hair dryer is being used, one of the energy transformations that takes place is

• electrical to chemial

• electrical to mechanical

• mechanical to electrical

• chemical to electric

Tags

NGSS.MS-PS3-5

When electrical energy is "used" by an electric light, what really happens to the energy

• it is given off as other forms of energy

• it changes matter

• it stops at the electric light

• it dissapears

Tags

NGSS.HS-PS3-5

In which state of matter are molecules in contact with each other but free to move?

• solid

• liquid

• gas

Tags

NGSS.MS-PS1-4