Georgia Milestone Science Review

During science lab, some students added small pieces of magnesium (Mg) to hydrochloric acid (HCI). They noticed bubbles formed, the test tube got hot, and the magnesium disappeared. Which of the following is a sign that a chemical reaction has taken place in this experiment?

• odor

• formation of gas

• decrease in tempature

• formation of precipitation

Tags

NGSS.MS-PS1-2

Which of these is an observed chemical property?

• color of powder

• density of powder

• powder dissolves in water

• powder reacts with vinegar

Tags

NGSS.MS-PS1-2

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 of the following is an example of kinetic energy?

• a child jumping rope

• a swimmer ready to dive

• a stuffed toy lying on a table

• firewood stacked in a fireplace

Tags

NGSS.MS-PS3-1

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

NGSS.MS-PS3-4

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.MS-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

A car stopped at the top of the ramp has...

• heat energy

• potential energy

• kinetic energy

• mechanical energy

Tags

NGSS.MS-PS3-2