A stationary front occurs when___

a cold air mass and a warm air mass met and neither takes over the other

a warm air mass advances upon a cold air mass causing days of wet weather

a cold air mass advances upon a warm air mass causing quick thunderstorms

cold, cool, and warm air masses come together, warm air gets closed off from the surfaceo f the Earth

smallest particle of an element

substance that cannot be broken down into other substances by chemical or physical means

a substance made of two or more elements thatt can be chemically combined

An element's properties can be predicted from_____________________

its location on the periodic table

Metals are located to the _____________ of the zigzag line on the periodic table

Neither. They are on the zig-zag line.

Physical properties are

properties that can be observed or measured without changing the composition of matter

properties that describe a substance's potential to undergo a chemical change or reaction

occurs when vibrations travelling through an object match the objects natural frequency

happens when an object or wave hits a surface through which it cannot travel and bounces back

occurs when a wave passes a barrier, or moves through a hole in a barrier it bends and spreads out

an interaction that occurs when two or more waves meet

is an interaction that occurs when two or more waves join

occurs when vibrations traveling through an object matach an objects natural frequency

occurs when a wave moves from one medium to another at an angle which causes it to bend

when an object or wave hits a surface through which it cant travel and bounces back

Fluorine and chlorine would have similar properties because they

are in the same group on the periodic table

are in the same period on the periodic table

Unlike physical changes, chemical changes always

form a new substance or substances

change the physical state of the substance

Iowa Practice Science

Quiz

•

Other Sciences

•

6th - 8th Grade

•

Practice Problem

•

Hard

Charles Martinez

Used 1+ times

FREE Resource

50 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Energy transferred by rays or waves

conduction

radiation

convection

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The transfer of energy that occurs when molecules bump into each other.

conduction

radiation

convection

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

transfer of heat by flow of material

conduction

radiation

convection

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An example of radiation would be the warmth of a campfire reaching your hand

true

false

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

________________________how heat is transferred through the troposphere

conduction

radiation

convection

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Air that moves from high to low pressure is called ___________

coriolis effect

wind

rotation

humidity

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

land breeze

sea breeze

valley breeze

mountain breeze

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