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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!!
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