6th Grade SOL Review

Unit 1 – Scientific Method

Unit 2 - Matter

Unit 3 – Properties of Water

• Adhesion vs. Cohesion• Adhesion – water sticking to other

things• Cohesion – water sticking to other

water molecules

Surface Tension

Capillary Action

Changing States

Review Questions• What causes water to change

states of matter?• Temperature

• Water is often called the universal solvent. Why• A large number of substances will

dissolve in water.• What is it called when water goes

from a liquid to a gas?• Evaporation

Unit 4 Weather and Atmosphere

Instruments

• Barometer• Measures air

pressure• Drop in pressure

means precipitation is coming

Anemometer

• Measures wind speed

Thermometer

• Measures temperature

Weather Vane

• Measures wind direction

Sling Psychrometer

• Measure humidity

Hygrometer

• Measure humidity

Review Questions• What instrument measures

temperature?• Thermometer

• What instrument s measure humidity?• Hygrometer and Sling Psychrometer

• What instrument measures wind speed?• Anemometer

• What instrument measures wind direction?• Weather Vane

• What instrument measures air pressure?• Barometer

Types of Clouds

Review Questions• What are the normal fluffy clouds?• Cumulus• What are the wispy high-level

clouds?• Cirrus• What are the layered clouds that

are associated with precipitation?• Stratus• What are the fluffy clouds

associated with precipitation?• Cumulonimbus

Review Questions• Which layer of the atmosphere has

the most mass?• Thermosphere• Which layer of the atmosphere has

weather and clouds?• Thermosphere• What layer of the atmosphere has

the ozone layer?• Stratosphere

The Water Cycle and the Sun

• The Sun powers the water cycle.

• Solar power causes water in the ocean to evaporate (3) , condense (2) into clouds and fall back to Earth.

Earth’s shape and tilt

• Earth is round.• Different parts get

different amounts of sunlight.

• The equator gets the most direct sunlight.

• The poles get indirect sunlight.

Air pressure and Wind• Wind is moving air.• Differences in air

pressure cause wind.

• Warmer areas have low pressure.

• Cooler areas have high pressure.

• Air moves from high pressure areas into low pressure areas.

Sea Breezes

• During the day the land heats more quickly than the water does.

• Warmer air rises over the land.• Cooler air sinks over the water.• A breeze moves from the water to

land.

Land Breezes

• At night the land cools more quickly than the water does.

• Warmer air rises over the water.• Cooler air sinks over the land.• A breeze moves from the land to water.

Review Question• How do land breezes happen?• Air cools faster over land and moves H

to L• How does the Earth cause weather?• Tilt• High pressure areas are associated

with what kind of air?• Cool air

Air Masses• Air masses are

large bodies of air that have the same properties as the area of the Earth’s surface over which it forms and moves.

• For example, deserts produce hot dry air masses.

(1)

Fronts• The place where air

masses meet is called a front.

• Weather is caused by the way these air masses interact.

Cold Fronts

• Incoming dense cold air pushes up warm air• This forms a narrow band of violent storms

Warm Fronts

• Warm air slides over departing cool air.

• This forms feathery clouds.

Stationary Front

• A cool air mass and a warm air masses meet and stop moving (neither one advances).

• This causes a few days of rainy and windy weather.

Review Questions

• What cloud type can become tornadoes?

• Cumulonimbus (same as thunderstorms)

• Where do hurricanes form?• Over water• Describe how a cold front is

represented on a weather map?• Blue line with triangles

Unit 5 Space

Rotation

Revolution

Tides

Review Questions• What is the difference between

rotation and revolution?• Rotation is spinning and revolution

is going around or orbiting• What causes tides?• Pull of the moon • What side of the moon is lit during

a waxing crescent?• Right

Review Questions• What happened to Pluto?• Pluto was declassified to a dwarf

planet• Which planets are the gas giants?• Jupiter, Saturn, Uranus and

Neptune• Which planets are the terrestrial

planets?• Mercury, Venus, Earth and Mars

Unit 6 Watersheds

Review Question• What states belong to the

Chesapeake Bay watershed?• PA, VA, WV, DE, NY, MD and DC• What are the 3 places water in VA

will eventually go?• Chesapeake Bay, Gulf of Mexico

and North Carolina Sound• What is the name of or local

watershed?• Potomac

Review Questions• What is the difference between

point and non-point pollution?• Point source pollution is

identifiable• What are some causes of chemical

weathering?• Acid rain• What is an example of abiotic

factor in the environment?• Temperature and water (nonliving)

Unit 7 Resources

Unit 8 Energy