PSSA REVIEW PART 2

PHYSICAL PROPERTIES OF MATTER

Physical properties are characteristics of a substance that can be observed without changing

the identity of the substance.

Scientists use physical properties

to describe, compare, and

classify matter.

Matter is everything around

you. Matter is anything that has mass and takes up

space.

Physical properties include:

• Color• Texture • Hardness• Flexibility• Magnetic• State (solid, liquid,

gas)

• Temperature• How well it

conducts heat or electricity

• Can it dissolve in water (think of mixing Kool-Aid)

For example, if a piece of gold is pounded into different shapes, the

characteristics of the gold changes but it is still gold.

Example:

Wood floats in water and iron sinks

Density is the mass of a substance in a certain volume.

ENERGY

Energy is the ability to cause change.

• Light • Sound• Heat

• Mechanical• Electrical• Chemical

Types of energy:

Forms of Energy:

http://www.brainpop.com/science/energy/formsofenergy/preview.weml

Light is energy you can see.

Can you name any sources of light?

Sound is energy you can hear.

Pitch is how high or low a sound is.

Volume is how loud a sound is.

Heat is the energy of tiny moving particles that make up matter.

Can you name any sources of heat?

Try this!

Mechanical energy is the energy of moving objects.

Electrical energy is the energy of charged particles. (lightning)

Chemical energy is the energy stored in matter.

ENERGY TRANSFERS

Energy Transfer diagram:

http://www.eschooltoday.com/what-is-energy-for-children.html

Q: How do energy-conscious people feel about wind power?

A: They're blown away!

ENERGY: JUST FOR FUN

CarPlane

Heater SteelLamp StoveMachine Train

LANDFORMSLandforms

are the geological features of the Earth’s

surface.

Geology is the study of

the Earth and its features.

Landforms:http://www.brainpopjr.com/science/land/landforms/

What kind of landforms can be found in Pennsylvania?

Plains Plateaus Mountains Rivers Lakes Valleys

NATURAL RESOURCESNatural resources are any materials from the earth that people need and use.

Examples:

Minerals, rocks, water, air, soil, plants, animals, and oil

Natural Resources:

http://www.brainpop.com/science/ourfragileenvironment/naturalresources/

What can you recall about renewable and nonrenewable

resources?Renewable resources can be

replaced such as water, oxygen, plants, animals, sunlight, and

windNonrenewable resources cannot

be easily replaced such as minerals, rocks, oil, and natural

gas.*These take millions of years to form. For more information: Renewable Vs.

Nonrenewable Resources:http://www.youtube.com/watch?v=pBTnVoEIb98

Rocks and Minerals

http://www.brainpopjr.com/science/land/rocksandminerals/

ROCKS AND MINERALS

What are some things we use rocks and minerals

for?

EARTH’S WATER

Water covers almost ¾ of the Earth. Most of this water is in the oceans as salt water. Oceans make up 97% of the Earth’s surface.

There are three states of matter:1. Solid2. Liquid3. Gas

CHANGES IN THE FORM OF WATER

States of Matter:

http://www.brainpop.com/science/matterandchemistry/statesofmatter/

Matter Changing States:

http://www.brainpop.com/science/matterandchemistry/matterchangingstates/

Melting- solid to liquidEvaporation- liquid to gas

MATTER CHANGING STATES

Condensation- gas to liquidSublimation- solid to gas

DESCRIBING AND MEASURING WEATHER

How do you think weather scientists (meteorologists) know what kind of

weather we will be having?

They use tools and instruments to help them collect data about the condition of

the atmosphere. This helps them to describe the weather and make

predications.For more information and descriptions of weather tools click here:

http://www.weatherwizkids.com/weather-instruments.htm

What would you predict about the

weather?

CLOUD TYPES

Wind currents twist and spread the ice crystals into wispy strands.

Cirrus clouds

Cirrus clouds are ice clouds. They can look like delicate white feathers or streamers.

They are always more than three miles up where the temperature is below freezing, even in summer.

Cumulous clouds

Cumulus clouds are the fluffy, white cotton ball or cauliflower-looking clouds with sharp outlines.

They are "fair weather clouds" and they are fun to watch as they grow and change in shape and size. miles up where the temperature is below freezing, even in summer. Cumulus clouds make beautiful

sunsets.

Stratus clouds

Stratus clouds often look like thin, white sheets covering the whole sky.

Since they are so thin, they seldom produce much rain or snow.

Sometimes, in the mountains or hills, these clouds appear to be fog.

More about Clouds…

Clouds:

http://www.brainpop.com/science/weather/clouds/preview.weml

EARTH, SUN, AND MOON

Have you ever wondered why Earth has day and night?

The main reason for day and night is the rotation (spinning) of the

Earth.

The Earth, Moon, and Sun System:

http://www.youtube.com/watch?v=ssA7Ew_BQHY&feature=youtu.be

PHASES OF THE MOON

Moon Phases Song to theme of “Forget You”:

http://www.youtube.com/watch?v=HkvlrWpsnuQ

http://spaceplace.nasa.gov/menu/earth/

http://kids.usa.gov/science/index.shtml

Electric Circuits:

http://www.andythelwell.com/blobz/

Simple Machines:

http://www.youtube.com/watch?v=grWIC9VsFY4

EXTRA RESOURCES

…and so do you!!

Great job!!