Free Printable Revision 2 Form 1

Worksheets

Revision 2 Form 1

Total questions: 25

Worksheet time: 10mins

Name

Class

Date

Define Density

The weight of a column of air pushing down on an area

The Amount of Mass in a given volume

The force pushing on an area

The distance above sea level

Air is made up of a mixture of many different kinds of gases.

True

False

Air Pressure is the weight of a column of air pushing down on an area

True

False

H_{2 is an example of a(n)...}

Element

Compound

Molecule

Heterogeneous Mixture

Element

Compound

Homogeneous Mixture

Heterogeneous Mixture

Element

Compound

Homogeneous Mixture

Heterogeneous Mixture

2 or more different elements that are bonded together is called...

A. element

B. compound

C. mixture

D. solution

A substance that contains only one type of atom is a(n)

compound

element

heterogeneous mixture

homogeneous mixture

Natural causes of air pollution include all of the following

forest fires

dust

wind

pollen

10.

Which gas is the most common in our air?

Nitrogen

Hydrogen

Helium

Oxygen

11.

How do humans cause air pollution?

plowing of fields

burning fossil fuels (coal, oil)

using solar power

driving electric cars

12.

What are ways that we can decrease air pollution?

carpool

conserving electricity

follow laws made by the EPA

burning extra fossil fuels

13.

Climate change caused by extra carbon dioxide in the air that causes heat to get trapped in the atmosphere is called

global warming

photosynthesis

smog

14.

A red bird appears red because it REFLECTS what color

Magenta

Red

Cyan

Doesn't reflect any light

15.

This is an example of...

Reflection

Refraction

Polarization

Spectrum

16.

Refraction

When energy is absorbed

Occurs when energy is absorbed

Occurs when energy waves travel through substance

When light hits a substance

17.

An actorś red shirt and blue pants both appear black. What color is the stage light shining on the actor?

Blue

Red

Magenta

Green

18.

Which pairs of colors of pigment combine to make black?

green and magenta

red and cyan

yellow and blue

All of the above

19.

This is where weather occurs

Troposphere

Stratosphere

Mesosphere

Thermosphere

20.

The layers of the atmosphere are separated according to this change.

Altitude

Elevation

Temperature

Distance from the sun

21.

Protects us from harmful UV rays

Oxygen

Carbon monoxide

Ozone layer

Carbon dioxide

22.

As altitude increases in the troposphere, the temperature ________.

Increases

Decreases

Remains the same

Varies

23.

A huge undersea earthquake off the Alaskan coastline could produce what natural hazard?

Tsunami

Cyclone

Hurricane

Drought

24.

The city of Tokyo, Japan invests millions of dollars to preserve sand dunes on beaches, build seawalls, and design trenches to divert seawater. What geohazard are they preparing for?

Earthquake

Sinkhole

Landslide

Tsunami

25.

This hazard is caused by the chemical dissolution process in sandstone or chemical dissolution of carbonate rocks that causes erosion of the soil beneath the ground.

sinkhole

liquefaction

land subsidence

ground rupture

Reset

Revision 2 Form 1

Total questions: 25

Worksheet time: 10mins

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